| 
   
   | 
  
   
    
     
       
      | 
     
    
     | 
 
 
 
 
    
 
  | 
        Semiconductor parts containing 521 
      in root number. Page 11.    |   | 
  
   
   | 
  
 
  ![]()  | 
  
 
Texas Instruments 
| Part | Description |  
| TPS5210PWPRG4 | Synchronous Buck Controller for Pentium(R) Processors |  
| TPS5211 | HIGH FREQUENCY PROGRAMMABLE HYSTERETIC REGULATOR CONTROLLER |  
| TPS5211PWP |  HIGH FREQUENCY PROGRAMMABLE SYNCHRONOUS-BUCK REGULATOR CONTROLLER |  
| TPS5211PWPR |  HIGH FREQUENCY PROGRAMMABLE SYNCHRONOUS-BUCK REGULATOR CONTROLLER |  
| TPS54521_1 | 4.5V to 17V Input, 5A Synchronous Step Down SWIFT??? Converter |  
| TPS54521 | 4.5V to 17V Input, 5A Synchronous Step Down SWIFT??? Converter |  
| TPS54521RHL | 4.5V to 17V Input, 5A Synchronous Step Down SWIFT??? Converter |  
| TPS54521RHLR |  4.5V to 17V Input, 5A Synchronous Step Down SWIFT??? Converter |  
| TPS75215 | Fast-Transient-Response 2-A LDO Voltage Regulator |  
| TPS75215-EP | POWER GOOD FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS |  
| TPS75215-Q1 | POWER GOOD FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS |  
| TPS75215Q | FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS |  
| TPS75215QPWP |  FAST-TRANSIENT-RESPONSE 2-A LDO VOLTAGE REGULATOR |  
| TPS75215QPWPG4 | Fast-Transient-Response 2-A LDO Voltage Regulator |  
| TPS75215QPWPR |  FAST-TRANSIENT-RESPONSE 2-A LDO VOLTAGE REGULATOR |  
| TPS75215QPWPREP | POWER GOOD FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS |  
| TPS75215QPWPRG4 | Fast-Transient-Response 2-A LDO Voltage Regulator |  
| TPS75215QPWPRQ1 | POWER GOOD FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS |  
| TPS75218 | Fast-Transient-Response 2-A LDO Voltage Regulator |  
| TPS75218-EP | POWER GOOD FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS |  
| TPS75218-Q1 | POWER GOOD FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS |  
| TPS75218Q | FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS |  
| TPS75218QPWP |  FAST-TRANSIENT-RESPONSE 2-A LDO VOLTAGE REGULATOR |  
| TPS75218QPWPG4 | Fast-Transient-Response 2-A LDO Voltage Regulator |  
| TPS75218QPWPR |  FAST-TRANSIENT-RESPONSE 2-A LDO VOLTAGE REGULATOR |  
| TPS75218QPWPREP | POWER GOOD FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS |  
| TPS75218QPWPRG4 | Fast-Transient-Response 2-A LDO Voltage Regulator |  
| TPS75218QPWPRQ1 | POWER GOOD FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS |  
| UCC28521 | ADVANCED PFC/PWW COMBINATION CONTROLLER WITH TRAILING-EDGE/TRAILING-EDGE MODULATION |  
| UCC28521DW | ADVANCED PFC/PWW COMBINATION CONTROLLER WITH TRAILING-EDGE/TRAILING-EDGE MODULATION |  
| UCC28521DWR | ADVANCED PFC/PWW COMBINATION CONTROLLER WITH TRAILING-EDGE/TRAILING-EDGE MODULATION |  
| UCC28521DWRG4 | Advanced PWM/PFC Combination Controller with TEM/TEM Modulation |  
  
TOKOM 
 
Torex Semiconductor 
| Part | Description |  
| XC6101A521 |  CMOS Voltage Detector |  
| XC6101B521 | CMOS Voltage Detector |  
| XC6101C521 | CMOS Voltage Detector |  
| XC6101D521 | CMOS Voltage Detector |  
| XC6101F521 | CMOS Voltage Detector |  
| XC6102A521 |  CMOS Voltage Detector |  
| XC6102B521 |  CMOS Voltage Detector |  
| XC6102D521 | CMOS Voltage Detector |  
| XC6103A521 |  CMOS Voltage Detector |  
| XC6103B521 |  CMOS Voltage Detector |  
| XC6103C521 |  CMOS Voltage Detector |  
| XC6103D521 |  CMOS Voltage Detector |  
| XC6103F521 | CMOS Voltage Detector |  
| XC6104B521 |  CMOS Voltage Detector |  
| XC6104E521 | CMOS Voltage Detector |  
| XC6104F521 | CMOS Voltage Detector |  
| XC6105A521 |  CMOS Voltage Detector |  
| XC6105B521 | CMOS Voltage Detector |  
| XC6105C521 |  CMOS Voltage Detector |  
| XC6105D521 | CMOS Voltage Detector |  
| XC6105E521 |  CMOS Voltage Detector |  
| XC6105F521 | CMOS Voltage Detector |  
| XC6106A521 | CMOS Voltage Detector |  
| XC6106B521 |  CMOS Voltage Detector |  
| XC6106C521 |  CMOS Voltage Detector |  
| XC6106D521 |  CMOS Voltage Detector |  
| XC6106E521 |  CMOS Voltage Detector |  
| XC6106F521 |  CMOS Voltage Detector |  
| XC6107A521 |  CMOS Voltage Detector |  
| XC6107C521 |  CMOS Voltage Detector |  
| XC6111A521 |  CMOS Voltage Detector |  
| XC6111B521 | CMOS Voltage Detector |  
| XC6111C521 | CMOS Voltage Detector |  
| XC6111E521 |  CMOS Voltage Detector |  
| XC6112A521 |  CMOS Voltage Detector |  
| XC6112D521 | CMOS Voltage Detector |  
| XC6112F521 | CMOS Voltage Detector |  
| XC6113A521 | CMOS Voltage Detector |  
| XC6113B521 | CMOS Voltage Detector |  
| XC6113C521 |  CMOS Voltage Detector |  
| XC6113E521 | CMOS Voltage Detector |  
| XC6113F521 |  CMOS Voltage Detector |  
| XC6114A521 | CMOS Voltage Detector |  
| XC6114B521 |  CMOS Voltage Detector |  
| XC6114C521 | CMOS Voltage Detector |  
| XC6114F521 |  CMOS Voltage Detector |  
| XC6115A521 | CMOS Voltage Detector |  
| XC6115B521 |  CMOS Voltage Detector |  
| XC6115D521 |  CMOS Voltage Detector |  
| XC6115E521 | CMOS Voltage Detector |  
| XC6116A521 |  CMOS Voltage Detector |  
| XC6116B521 | CMOS Voltage Detector |  
| XC6116C521 |  CMOS Voltage Detector |  
| XC6116E521 |  CMOS Voltage Detector |  
| XC6116F521 | CMOS Voltage Detector |  
| XC6117A521 | CMOS Voltage Detector |  
| XC6117B521 |  CMOS Voltage Detector |  
| XC6117C521 | CMOS Voltage Detector |  
| XC6117D521 |  CMOS Voltage Detector |  
| XC6117E521 |  CMOS Voltage Detector |  
| XC6121A521EL | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6121A521ER | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6121A521MR | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6121C521MR |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6121D521ML |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6121D521MR |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6121E521EL | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6121E521ER |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6121E521ML | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6121E521MR | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6121F521ER |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6121F521MR |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6122A521EL | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6122A521ER | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6122A521MR |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6122C521EL |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6122C521ER | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6122C521MR | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6122D521EL | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6122D521ER | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6122D521MR |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6122E521ER |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6122E521MR |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6122F521EL | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6122F521ER |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6122F521ML |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6122F521MR |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6123A521ER |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6123A521ML |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6123A521MR | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6123C521ER |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6123C521ML | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6123C521MR | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6123D521EL |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6123D521ER | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6123D521ML |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6123E521EL |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6123E521ML | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6123F521EL |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6123F521ER | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6123F521ML |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6123F521MR |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6124A521ER | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6124A521ML | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6124C521EL | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6124C521ER | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6124C521ML |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6124C521MR |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6124D521EL | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6124D521ER | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6124D521ML | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6124E521ML |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6124E521MR | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6124F521EL |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6124F521ER | Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6124F521ML |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6124F521MR |  Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V) |  
| XC6201P521LB | Positive Voltage Regulators |  
| XC6201P521LH | Positive Voltage Regulators |  
| XC6201P521LL | Positive Voltage Regulators |  
| XC6201P521LR | Positive Voltage Regulators |  
| XC6201P521MB | Positive Voltage Regulators |  
| XC6201P521MH | Positive Voltage Regulators |  
| XC6201P521ML | Positive Voltage Regulators |  
| XC6201P521MR | Positive Voltage Regulators |  
| XC6201P521PB | Positive Voltage Regulators |  
| XC6201P521PH | Positive Voltage Regulators |  
| XC6201P521PL | Positive Voltage Regulators |  
| XC6201P521PR | Positive Voltage Regulators |  
| XC6201P521TB | Positive Voltage Regulators |  
| XC6201P521TH | Positive Voltage Regulators |  
| XC6201P521TL | Positive Voltage Regulators |  
| XC6201P521TR | Positive Voltage Regulators |  
| XC6204A521DL | (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators |  
| XC6204A521DR | (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators |  
| XC6204A521ML | (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators |  
| XC6204A521MR | (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators |  
| XC6204B521DL | (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators |  
| XC6204B521DR | (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators |  
| XC6204B521ML | (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators |  
| XC6204B521MR | (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators |  
| XC6204C521DL | (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators |  
| XC6204C521DR | (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators |  
| XC6204C521ML | (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators |  
| XC6204C521MR | (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators |  
| XC6204D521DL | (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators |  
| XC6204D521DR | (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators |  
| XC6204D521ML | (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators |  
| XC6204D521MR | (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators |  
  
Toshiba 
| Part | Description |  
| 2SC521A | 70V Vcbo, 7.0A Ic Low frequency power silicon NPN transistor |  
| TC4521BP_07 |  24-Stage Frequency Divider |  
| TC4521BP | TOSHIBA CMOS INTEGRATED CIRCUIT SILICON MONOLITHIC (24-STAGE FREQUENCY DIVIDER) |  
| TC521000J | Serial Dynamic RAM |  
| TC521000P | Serial Dynamic RAM |  
| TC74AC521F | 8-BIT EQUALITY COMPARATOR |  
| TC74AC521FW |  8-BIT EQUALITY COMPARATOR |  
| TC74ACT521F |  CMOS Digital Integrated Circuit Silicon Monolithic 8-Bit Equality Comparator |  
| TC74ACT521FW | Digital Comparator |  
| TC8521AM | Real time clock II |  
| TC8521AP | Real time clock II |  
| TLP3521 | TOSHIBA Photocoupler GaAs Ired & Photo-Triac |  
| TLP521-1_07 | Programmable Controllers AC/DC−Input Module Solid State Relay |  
| TLP521-1 | GaAs ired & photo-transistor |  
| TLP521-2 | GaAs ired & photo-transistor |  
| TLP521-4 | GaAs ired & photo-transistor |  
| TLP521 | programmable controllers ac/dc-input module solid state relay |  
| YTF521 | MOSFETs and TempFETs |  
  
TRACO 
| Part | Description |  
| TED0521 | 2 Watt,  input voltage range:4.5-5.5V, output voltage +/-12V (+/-80mA) DC/DC converter |  
| TEF0521 | 3 Watt,  input voltage range:4.5-7V, output voltage +/-12V (+/-125mA) DC/DC converter |  
| TEM2-0521 | 2 Watt,  input voltage range:5V, output voltage +/-12V (+/-80mA) DC/DC converter |  
| TEM3-0521 | 3 Watt,  input voltage range:5V, output voltage +/-12V (+/-125mA) DC/DC converter |  
| TEN3-0521 | 3 Watt,  input voltage range:4.5-9V, output voltage +/-5V (+/-250mA) DC/DC converter |  
| THI0521 | 2 Watt,input voltage range:5V output voltage +/-12 (+/-80mA) DC/DC converter |  
| TML05212 | 5 Watt, input voltage range: 85-264V, output voltage +/-12V (+/-200mA), encapsulated power supply |  
| TML05215 | 5 Watt, input voltage range: 85-264V, output voltage +/-15V (+/-160mA), encapsulated power supply |  
| TML15212 | 15 Watt, input voltage range: 85-264V, output voltage +/-12V (+/-650mA), encapsulated power supply |  
| TML15215 | 15 Watt, input voltage range: 85-264V, output voltage +/-15V (+/-500mA), encapsulated power supply |  
| TMS15212 | 15 Watt, input voltage range:83-264V,output voltage +/-12V (+/-650mA) microswitcher |  
| TMS15212C | 15 Watt, input voltage range:83-264V,output voltage +/-12V (+/-650mA) microswitcher |  
| TMS15212F | 15 Watt, input voltage range:83-264V,output voltage +/-12V (+/-650mA) microswitcher |  
| TMS15215 | 15 Watt, input voltage range:83-264V,output voltage +/-15V (+/-500mA) microswitcher |  
| TMS15215C | 15 Watt, input voltage range:83-264V,output voltage +/-15V (+/-500mA) microswitcher |  
| TMS15215F | 15 Watt, input voltage range:83-264V,output voltage +/-15V (+/-500mA) microswitcher |  
| TMS25212 | 25 Watt, input voltage range:83-264V,output voltage +/-12V (+/-1A) microswitcher |  
| TMS25212C | 25 Watt, input voltage range:83-264V,output voltage +/-12V (+/-1A) microswitcher |  
| TMS25212F | 25 Watt, input voltage range:83-264V,output voltage +/-12V (+/-1A) microswitcher |  
| TMS25215 | 25 Watt, input voltage range:83-264V,output voltage +/-15V (+/-800mA) microswitcher |  
| TMS25215C | 25 Watt, input voltage range:83-264V,output voltage +/-15V (+/-800mA) microswitcher |  
| TMS25215F | 25 Watt, input voltage range:83-264V,output voltage +/-15V (+/-800mA) microswitcher |  
| TPM05212 | 5 Watt, input voltage range: 18-72V, output voltage +/-12V (+250/-150mA), mini switcher |  
| TPM05215 | 5 Watt, input voltage range: 18-72V, output voltage +/-15V (+/-150mA), mini switcher |  
| TPM15212 | 15 Watt, input voltage range: 18-72V, output voltage +/-12V (600/-400mA), mini switcher |  
| TPM15212C | 15 Watt, input voltage range: 18-72V, output voltage +/-12V (600/-400mA), mini switcher |  
| TPM15215 | 15 Watt, input voltage range: 18-72V, output voltage +/-15V (+500/-400mA), mini switcher |  
| TPM15215C | 15 Watt, input voltage range: 18-72V, output voltage +/-15V (+500/-400mA), mini switcher |  
| TUHI0521 | DC/DC-Converter Ultra High Isolation TUHI Series |  
| TXL060-0521T | 60 Watt, input voltage range: 85-264V, output voltage +/-5/12V (8/3.5/-1A),switching power supplier |  
| TXL100-0521T | 100 Watt, input voltage range: 88-264V, output voltage 5/12/-5V (12/5/-1.5A),switching power supplier |  
  
TriQuint Semiconductor 
| Part | Description |  
| TGA4521 |  32 - 45 GHz Wide Band Driver Amplifier |  
  
TRNSR 
| Part | Description |  
| 1N5521 | 4.3V, 400mWt General purpose voltage reference/regulator diode |  
| 2N1521 | Transistors, Bipolar, Ge PNP Power |  
| 2N5218 | 220V Vcbo, 10A Ic Low frequency power silicon NPN transistor |  
  
TSC 
| Part | Description |  
| TS5213 | 80mA Low Noise LDO Voltage Regulator with Enable Function |  
| TS5213CU5 |  80mA Low Noise LDO Voltage Regulator with Enable Function |  
| TS5213CX5 | 80mA Low Noise LDO Voltage Regulator with Enable Function |  
| TS5214 |  300mA Low Noise LDO Voltage Regulator |  
| TS5214ACY | 300mA Low Noise LDO Voltage Regulator |  
| TS5214CW | 300mA Low Noise LDO Voltage Regulator |  
| TS5214CX |  300mA Low Noise LDO Voltage Regulator |  
| TS5214CY | 300mA Low Noise LDO Voltage Regulator |  
| TS5215_07 | 300mA Low Noise LDO Voltage Regulator with Enable |  
| TS5215 | 300mA Low Noise LDO Voltage Regulator with Enable |  
| TS5215CY5 | 300mA Low Noise LDO Voltage Regulator with Enable |  
| TS5218 |  800mA Ultra Low Dropout Voltage Regulator with Enable |  
| TS5218CQRF | 800mA Ultra Low Dropout Voltage Regulator with Enable |  
  
United Monolithic Semiconductor 
 
USHA 
| Part | Description |  
| 2N5210 | Amplifier transistor. Collector-emitter voltage: Vceo = 50V. Collector-base voltage: Vcbo = 50V. Collector dissipation: Pc(max) = 625mW. |  
| USP6521 | Amplifier transistor. Vcbo = 40V, Vceo = 25V, Vebo = 4V, Ic = 100mA, Pc = 625mW |  
  
Unisonic Technologies Co. 
| Part | Description |  
| 3521_05 | PWM CONTROLLER WITH SUPERVISORY CIRCUIT FOR SWITCHING POWER SUPPLY |  
| 3521 |  PWM CONTROLLER WITH SUPERVISORY CIRCUIT FOR SWITCHING POWER SUPPLY |  
| 3521-D16-T | PWM CONTROLLER WITH SUPERVISORY CIRCUIT FOR SWITCHING POWER SUPPLY |  
| 3521L-D16-T |  PWM CONTROLLER WITH SUPERVISORY CIRCUIT FOR SWITCHING POWER SUPPLY |  
| RB521S30-CC2-R |  SCHOTTKY BARRIER DIODES |  
| RB521S30L-CC2-R | SCHOTTKY BARRIER DIODES |  
  
UTMC 
| Part | Description |  
| 5962-9652101QCA | RadHard MSI: SMD. Triple 3-input NAND gates. Class Q, QML. Lead finish solder. Total dose none. |  
| 5962-9652101QCC | RadHard MSI: SMD. Triple 3-input NAND gates. Class Q, QML. Lead finish gold. Total dose none. |  
| 5962-9652101QCX | RadHard MSI: SMD. Triple 3-input NAND gates. Class Q, QML. Lead finish optional. Total dose none. |  
| 5962-9652101QXA | RadHard MSI: SMD. Triple 3-input NAND gates. Class Q, QML. Lead finish solder. Total dose none. |  
| 5962-9652101QXC | RadHard MSI: SMD. Triple 3-input NAND gates. Class Q, QML. Lead finish gold. Total dose none. |  
| 5962-9652101QXX | RadHard MSI: SMD. Triple 3-input NAND gates. Class Q, QML. Lead finish optional. Total dose none. |  
| 5962-9652101VCA | RadHard MSI: SMD. Triple 3-input NAND gates. Class V, QML. Lead finish solder. Total dose none. |  
| 5962-9652101VCC | RadHard MSI: SMD. Triple 3-input NAND gates. Class V, QML. Lead finish gold. Total dose none. |  
| 5962-9652101VCX | RadHard MSI: SMD. Triple 3-input NAND gates. Class V, QML. Lead finish optional. Total dose none. |  
| 5962-9652101VXA | RadHard MSI: SMD. Triple 3-input NAND gates. Class V, QML. Lead finish solder. Total dose none. |  
| 5962-9652101VXC | RadHard MSI: SMD. Triple 3-input NAND gates. Class V, QML. Lead finish gold. Total dose none. |  
| 5962-9652101VXX | RadHard MSI: SMD. Triple 3-input NAND gates. Class V, QML. Lead finish optional. Total dose none. |  
| 5962H9652101QCA | RadHard MSI: SMD. Triple 3-input NAND gates. Class Q, QML. Lead finish solder. Total dose 1E6 rads(Si). |  
| 5962H9652101QCA | RadHard MSI: SMD. Triple 3-input NAND gates. Class Q, QML. Lead finish solder. Total dose 1E6 rads(Si). |  
| 5962H9652101QCC | RadHard MSI: SMD. Triple 3-input NAND gates. Class Q, QML. Lead finish gold. Total dose 1E6 rads(Si). |  
| 5962H9652101QCC | RadHard MSI: SMD. Triple 3-input NAND gates. Class Q, QML. Lead finish gold. Total dose 1E6 rads(Si). |  
| 5962H9652101QCX | RadHard MSI: SMD. Triple 3-input NAND gates. Class Q, QML. Lead finish optional. Total dose 1E6 rads(Si). |  
| 5962H9652101QCX | RadHard MSI: SMD. Triple 3-input NAND gates. Class Q, QML. Lead finish optional. Total dose 1E6 rads(Si). |  
| 5962H9652101VCA | RadHard MSI: SMD. Triple 3-input NAND gates. Class V, QML. Lead finish solder. Total dose 1E6 rads(Si). |  
| 5962H9652101VCA | RadHard MSI: SMD. Triple 3-input NAND gates. Class V, QML. Lead finish solder. Total dose 1E6 rads(Si). |  
| 5962H9652101VCC | RadHard MSI: SMD. Triple 3-input NAND gates. Class V, QML. Lead finish gold. Total dose 1E6 rads(Si). |  
| 5962H9652101VCC | RadHard MSI: SMD. Triple 3-input NAND gates. Class V, QML. Lead finish gold. Total dose 1E6 rads(Si). |  
| 5962H9652101VCX | RadHard MSI: SMD. Triple 3-input NAND gates. Class V, QML. Lead finish optional. Total dose 1E6 rads(Si). |  
| 5962H9652101VCX | RadHard MSI: SMD. Triple 3-input NAND gates. Class V, QML. Lead finish optional. Total dose 1E6 rads(Si). |  
| 5962R9652101QCA | RadHard MSI: SMD. Triple 3-input NAND gates. Class Q, QML. Lead finish solder. Total dose 1E5 rads(Si). |  
| 5962R9652101QCC | RadHard MSI: SMD. Triple 3-input NAND gates. Class Q, QML. Lead finish gold. Total dose 1E5 rads(Si). |  
| 5962R9652101QCX | RadHard MSI: SMD. Triple 3-input NAND gates. Class Q, QML. Lead finish optional. Total dose 1E5 rads(Si). |  
| 5962R9652101QXA | RadHard MSI: SMD. Triple 3-input NAND gates. Class Q, QML. Lead finish solder. Total dose 1E5 rads(Si). |  
| 5962R9652101QXC | RadHard MSI: SMD. Triple 3-input NAND gates. Class Q, QML. Lead finish gold. Total dose 1E5 rads(Si). |  
| 5962R9652101QXX | RadHard MSI: SMD. Triple 3-input NAND gates. Class Q, QML. Lead finish optional. Total dose 1E5 rads(Si). |  
| 5962R9652101VCA | RadHard MSI: SMD. Triple 3-input NAND gates. Class V, QML. Lead finish solder. Total dose 1E5 rads(Si). |  
| 5962R9652101VCC | RadHard MSI: SMD. Triple 3-input NAND gates. Class V, QML. Lead finish gold. Total dose 1E5 rads(Si). |  
| 5962R9652101VCX | RadHard MSI: SMD. Triple 3-input NAND gates. Class V, QML. Lead finish optional. Total dose 1E5 rads(Si). |  
| 5962R9652101VXA | RadHard MSI: SMD. Triple 3-input NAND gates. Class V, QML. Lead finish solder. Total dose 1E5 rads(Si). |  
| 5962R9652101VXC | RadHard MSI: SMD. Triple 3-input NAND gates. Class V, QML. Lead finish gold. Total dose 1E5 rads(Si). |  
| 5962R9652101VXX | RadHard MSI: SMD. Triple 3-input NAND gates. Class V, QML. Lead finish optional. Total dose 1E5 rads(Si). |  
  
VAISH 
 
VISAY 
| Part | Description |  
| CCF-55210KFKE36 |  Metal Film Resistors, Industrial, 1% Tolerance |  
| CCF-55210KFKR36 | Metal Film Resistors, Industrial, 1% Tolerance |  
| CCF55210KFKR36 | Metal Film Resistors, Industrial, 1% Tolerance |  
| CCF55210RFKE36 |  Metal Film Resistors, Industrial, 1% Tolerance |  
| CCF-55210RFKE36 |  Metal Film Resistors, Industrial, 1% Tolerance |  
| CCF55210RFKR36 |  Metal Film Resistors, Industrial, 1% Tolerance |  
| CCF-55215KFKE36 | Metal Film Resistors, Industrial, 1% Tolerance |  
| CCF55215KFKR36 |  Metal Film Resistors, Industrial, 1% Tolerance |  
| CCF55215RFKE36 | Metal Film Resistors, Industrial, 1% Tolerance |  
| CCF-55215RFKR36 |  Metal Film Resistors, Industrial, 1% Tolerance |  
| CCF55215RFKR36 |  Metal Film Resistors, Industrial, 1% Tolerance |  
| CCF5521K0FKE36 | Metal Film Resistors, Industrial, 1% Tolerance |  
| CCF-5521K0FKE36 | Metal Film Resistors, Industrial, 1% Tolerance |  
| CCF5521K0FKR36 | Metal Film Resistors, Industrial, 1% Tolerance |  
| CCF5521K5FKE36 | Metal Film Resistors, Industrial, 1% Tolerance |  
| CCF-5521K5FKE36 | Metal Film Resistors, Industrial, 1% Tolerance |  
| CCF5521R0FKE36 | Metal Film Resistors, Industrial, 1% Tolerance |  
| CCF-5521R0FKR36 |  Metal Film Resistors, Industrial, 1% Tolerance |  
| CCF5521R5FKE36 |  Metal Film Resistors, Industrial, 1% Tolerance |  
| CCF5521R5FKR36 | Metal Film Resistors, Industrial, 1% Tolerance |  
| CCF-5521R5FKR36 |  Metal Film Resistors, Industrial, 1% Tolerance |  
| DG2521DV-T1-E3 | Sub-?©, Low Voltage, SPDT Analog Switches with Over Current Protection |  
| LH1521BAC | Dual 1 Form B Solid State Relay |  
| LH1521BACTR | Dual 1 Form B Solid State Relay |  
| LH1521BB | Dual 1 Form B Solid State Relay |  
| MAL205352151E3 | Aluminum Capacitors Power Economic Printed Wiring |  
| MAL205352152E3 |  Aluminum Capacitors Power Economic Printed Wiring |  
| MAL205752102E3 |  Aluminum Capacitors Power Standard Miniature Snap-In |  
| MAL205752151E3 |  Aluminum Capacitors Power Standard Miniature Snap-In |  
| MAL205952102E3 |  Aluminum Capacitors Power Long Life Snap-In |  
| MAL209052102E3 | Aluminum Capacitors Power Ultra Long Life Snap-In |  
| MAL210452102E3 |  Aluminum Capacitors Power High Ripple Current Long Life Screw Terminals |  
| MAL210452103E3 |  Aluminum Capacitors Power High Ripple Current Long Life Screw Terminals |  
| MAL210452152E3 |  Aluminum Capacitors Power High Ripple Current Long Life Screw Terminals |  
| MAL210452153E3 | Aluminum Capacitors Power High Ripple Current Long Life Screw Terminals |  
| MAL215152101E3 |  Aluminum Capacitors Radial Long-Life, High Voltage |  
| MAL215152109E3 | Aluminum Capacitors Radial Long-Life, High Voltage |  
| MAL215252101E3 |  Aluminum Capacitors Radial Miniature, High Voltage |  
| MAL215652103E3 |  Aluminum Capacitors Aluminum Capacitors |  
| MAL215752102E3 | Aluminum Capacitors Power Ultra Miniature Snap-In |  
| MAL215752152E3 | Aluminum Capacitors Power Ultra Miniature Snap-In |  
| MAL215852152E3 | Aluminum Capacitors Power Ultra Long Life Snap-In |  
| MAL215952102E3 | Aluminum Capacitors Power Ultra Long Life Snap-In |  
| MAL215952122E3 | Aluminum Capacitors Power Ultra Long Life Snap-In |  
| MAL215952182E3 | Aluminum Capacitors Power Ultra Long Life Snap-In |  
| MAL216352102E3 |  Aluminum Capacitors Power Long Life Printed Wiring |  
| MAL216352152E3 | Aluminum Capacitors Power Long Life Printed Wiring |  
| MAL219952152E3 |  Aluminum Capacitors Power Economy Long Life Snap-In |  
| MCT5211-X007 | Optocoupler, Phototransistor Output, Low Input Current, With Base Connection |  
| TDFZ125213 |  Pot Capacitors with R 16 High Q Ceramic |  
| TSFF5210 | High Speed Infrared Emitting Diode, RoHS Compliant, 870 nm, GaAlAs Double Hetero |  
| TSHF5210_08 |  High Speed Infrared Emitting Diode, RoHS Compliant, 890 nm, GaAlAs Double Hetero |  
| TSHF5210 | High Speed Infrared Emitting Diode in T-13/4 Package |  
| TSHG5210 |  High Speed Infrared Emitting Diode, RoHS Compliant, 850 nm, GaAlAs Double Hetero |  
| Y1752120K500A |  Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120K500B |  Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120K500D | Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120K500F | Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120K500Q | Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120K500S | Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120K500T |  Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120K500U | Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120M500A | Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120M500B | Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120M500C |  Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120M500F |  Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120M500S | Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120M500T | Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120M500U |  Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120R500A | Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120R500B |  Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120R500C |  Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120R500D |  Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120R500F |  Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120R500Q |  Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120R500S | Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120R500T |  Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
| Y1752120R500X |  Hermetically Sealed Ultra High Precision Z-Foil Technology Resistors with TCR of ?? 0.2 ppm/?°C, Tolerance of ?? 0.001 % and |  
  
VMI 
| Part | Description |  
| 1N6521 | 2000 V rectifier 0.1-0.5 mA forward current,70 ns recovery time |  
| 1N6521U | 2000 V rectifier 0.15-0.5 A forward current, 70 ns recovery time |  
| SXF6521 |  2,000 V - 5,000 V Rectifiers 0.15 A - 0.50 A Forward Current 70 ns Recovery Time |  
  
VTC Inc. 
 
Winbond Electronics 
| Part | Description |  
| ES521 | Winbond ES521 Evaluation System User Guide |  
| I5216 | 8 TO 16 MINUTE VOICE RECORD/PLAYBACK SYSTEM WITH INTEGRATED CODEC |  
| I5216E | 8 to 16 minute vioce record/playback system with integrated codec |  
| I5216ED | 8 to 16 minute vioce record/playback system with integrated codec |  
| I5216EI | 8 to 16 minute vioce record/playback system with integrated codec |  
| I5216P | 8 to 16 minute vioce record/playback system with integrated codec |  
| I5216S | 8 to 16 minute vioce record/playback system with integrated codec |  
| I5216SD | 8 to 16 minute vioce record/playback system with integrated codec |  
| I5216SI | 8 to 16 minute vioce record/playback system with integrated codec |  
| I5216X | 8 to 16 minute vioce record/playback system with integrated codec |  
| ISD5216 |  8 to 16 minutes voice record/playback device with integrated codec |  
| ISD5216E |  8 to 16 minutes voice record/playback device with integrated codec |  
| ISD5216EYI |  8 to 16 minutes voice record/playback device with integrated codec |  
| ISD5216P |  8 to 16 minutes voice record/playback device with integrated codec |  
| ISD5216PI | 8 to 16 minutes voice record/playback device with integrated codec |  
| ISD5216PYI |  8 to 16 minutes voice record/playback device with integrated codec |  
| ISD5216S | 8 to 16 minutes voice record/playback device with integrated codec |  
| ISD5216SI |  8 to 16 minutes voice record/playback device with integrated codec |  
| ISD5216SY | 8 to 16 minutes voice record/playback device with integrated codec |  
| ISD5216SYI |  8 to 16 minutes voice record/playback device with integrated codec |  
| W91521 | Telephone Circuit |  
| W91521A | Telephone Circuit |  
| W91521AN | Tone/pulse dialer with handfree and hold functions |  
| W91521N | Tone/pulse dialer with handfree and hold functions |  
  
Wolfson Microelectronics 
| Part | Description |  
| WM8521_06 |  Stereo DAC with Integrated Output Stage for 2Vrms LINE OUT |  
| WM8521 | STEREO DAC WITH INTEGRATED OUTPUT STAGE FOR 2VRMS LINE OUT |  
| WM8521H9ED | STEREO DAC WITH INTEGRATED OUTPUT STAGE FOR 2VRMS LINE OUT |  
| WM8521H9ED/RV | STEREO DAC WITH INTEGRATED OUTPUT STAGE FOR 2VRMS LINE OUT |  
| WM8521H9ED/V | STEREO DAC WITH INTEGRATED OUTPUT STAGE FOR 2VRMS LINE OUT |  
| WM8521H9GED | STEREO DAC WITH INTEGRATED OUTPUT STAGE FOR 2VRMS LINE OUT |  
| WM8521H9GED/RV | STEREO DAC WITH INTEGRATED OUTPUT STAGE FOR 2VRMS LINE OUT |  
| WM8521H9GED/V | STEREO DAC WITH INTEGRATED OUTPUT STAGE FOR 2VRMS LINE OUT |  
| WM8521HCED | STEREO DAC WITH INTEGRATED OUTPUT STAGE FOR 2VRMS LINE OUT |  
| WM8521HCED/RV | STEREO DAC WITH INTEGRATED OUTPUT STAGE FOR 2VRMS LINE OUT |  
| WM8521HCED/V | STEREO DAC WITH INTEGRATED OUTPUT STAGE FOR 2VRMS LINE OUT |  
| WM8521HCGED | STEREO DAC WITH INTEGRATED OUTPUT STAGE FOR 2VRMS LINE OUT |  
| WM8521HCGED/RV | STEREO DAC WITH INTEGRATED OUTPUT STAGE FOR 2VRMS LINE OUT |  
| WM8521HCGED/V | STEREO DAC WITH INTEGRATED OUTPUT STAGE FOR 2VRMS LINE OUT |  
  
WSI 
 
WTE 
| Part | Description |  
| DD2521S |  25A GLASS PASSIVATED AVALANCHE DISH TYPE PRESS-FIT DIODE |  
  
XICOR 
| Part | Description |  
| X9521 | Dual DCP, EEPROM Memory |  
  
Xilinx Inc. 
      | 
     
    
   | 
  
   
   |