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        Semiconductor parts containing 551 
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Advanced Analogic Technologies 
 
Analog Devices 
| Part | Description |  
| 85514012A | +5V Precision Voltage Reference/Temperature Transducer |  
| 8551401GA | +5V Precision Voltage Reference/Temperature Transducer |  
| 8551401PA | +5V Precision Voltage Reference/Temperature Transducer |  
| AD5512A |  2.7 V to 5.5 V, Serial-Input, Voltage-Output, 16-/12-Bit nanoDACs in LFCSP |  
| AD5512AACPZ |  2.7 V to 5.5 V, Serial-Input, Voltage-Output, 16-/12-Bit nanoDACs in LFCSP |  
| AD5516-1 | 16-Channel, 12-Bit Voltage-Output DAC with 14-Bit Increment Mode |  
| AD5516-2 |  16-Channel, 12-Bit Voltage-Output DAC with 14-Bit Increment Mode |  
| AD5516 | 16-Channel, 12-Bit Voltage-Output DAC with 14-Bit Increment Mode |  
| AD5516ABC-1 | 0.3-17V; 16-channel, 12-bit voltage-output DAC with 14-bit increment mode. For level setting, instrumentation, automatic test equipment |  
| AD5516ABC-2 | 0.3-17V; 16-channel, 12-bit voltage-output DAC with 14-bit increment mode. For level setting, instrumentation, automatic test equipment |  
| AD5516ABC-3 | 0.3-17V; 16-channel, 12-bit voltage-output DAC with 14-bit increment mode. For level setting, instrumentation, automatic test equipment |  
| AD5516ABCZ-1 | 16-Channel 12-Bit Bipolar Voltage-Output DAC with 14-Bit Increment Mode |  
| AD5516ABCZ-2 | 16-Channel 12-Bit Bipolar Voltage-Output DAC with 14-Bit Increment Mode |  
| AD5516ABCZ-3 | 16-Channel 12-Bit Bipolar Voltage-Output DAC with 14-Bit Increment Mode |  
| AD5551 | 5V, Serial-Input, Voltage-Output 14-Bit DAC |  
| AD5551BR | 0.3-6V; serial-input voltage-output, 14-bit DAC. For digital gain and offset adjustment, automatic test equipment, data acquisition systems and industrial process control |  
| AD5551BR-REEL7 | 5 V, Serial-Input, Voltage-Output 14-Bit DAC |  
| AD5551BRZ | 5 V, Serial-Input, Voltage-Output 14-Bit DAC |  
| AD5551BRZ-REEL7 | 5 V, Serial-Input, Voltage-Output 14-Bit DAC |  
| AD8551 | Worlds Most Accurate Single-Channel Amplifier at 3 V-5 V |  
| AD8551AR | 6V; zero-drift, single-supply, rail-to-rail input/output operational amplifier |  
| AD8551ARM | 6V; zero-drift, single-supply, rail-to-rail input/output operational amplifier |  
| AD8551ARM-R2 | Worlds Most Accurate Single-Channel Amplifier at 3 V-5 V |  
| AD8551ARM-REEL | Worlds Most Accurate Single-Channel Amplifier at 3 V-5 V |  
| AD8551ARMZ-R2 | Worlds Most Accurate Single-Channel Amplifier at 3 V-5 V |  
| AD8551ARMZ-REEL | Worlds Most Accurate Single-Channel Amplifier at 3 V-5 V |  
| AD8551AR-REEL | Worlds Most Accurate Single-Channel Amplifier at 3 V-5 V |  
| AD8551AR-REEL7 | Worlds Most Accurate Single-Channel Amplifier at 3 V-5 V |  
| AD8551ARZ | Worlds Most Accurate Single-Channel Amplifier at 3 V-5 V |  
| AD8551ARZ1 |  Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifiers |  
| AD8551ARZ-REEL | Worlds Most Accurate Single-Channel Amplifier at 3 V-5 V |  
| AD8551ARZ-REEL7 | Worlds Most Accurate Single-Channel Amplifier at 3 V-5 V |  
| AD85551 | 10 MHz, 20 V/??s, G = 1, 10, 100, 1000 i CMOS?? Programmable Gain Instrumentation Amplifier |  
| AD9551 |  Multiservice Clock Generator |  
| AD9551BCPZ | Multiservice Clock Generator |  
| ADCMP551_0410 |  Single-Supply, High Speed PECL/LVPECL Comparators |  
| ADCMP551 | Single Supply High Speed PECL Comparators |  
| ADCMP551BRQ | V(cc): -0.5 to +6.0V; single supply high speed PECL comparator |  
| ADCMP551BRQZ | Single - Supply, High Speed PECL Comparator in 16 - Lead QSOP Package |  
| ADL5513_08 | 1 MHz to 4 GHz, 80 dB Logarithmic Detector/Controller |  
| ADL5513 |  1 MHz to 4 GHz, 80 dB Logarithmic Detector/Controller |  
| ADL5513-ACPZ-R2 | 1 MHz to 4 GHz, 80 dB Logarithmic Detector/Controller |  
| ADL5513ACPZ-R2 |  1 MHz to 4 GHz, 80 dB Logarithmic Detector/Controller |  
| ADL5513-ACPZ-R7 | 1 MHz to 4 GHz, 80 dB Logarithmic Detector/Controller |  
| ADL5513ACPZ-R7 |  1 MHz to 4 GHz, 80 dB Logarithmic Detector/Controller |  
| ADL5513ACPZ-WP | 1 MHz to 4 GHz, 80 dB Logarithmic Detector/Controller |  
| ADL5513-ACPZ-WP |  1 MHz to 4 GHz, 80 dB Logarithmic Detector/Controller |  
| ADL5519 | 1 MHz to 10 GHz, 50 dB Dual Log Detector/Controller |  
| ADL5519ACPZ-WP | 1 MHz to 10 GHz, 50 dB Dual Log Detector/Controller |  
| ADL5519-EVALZ | 1 MHz to 10 GHz, 50 dB Dual Log Detector/Controller |  
| EVAL-ADCMP551BRQ |  Single-Supply, High Speed PECL/LVPECL Comparators |  
  
Advanced Power Technology 
 
Advanced Semiconductor, Inc 
| Part | Description |  
| ASI10551 | NPN SILICON RF POWER TRANSISTOR |  
  
Aimtron Technology 
| Part | Description |  
| AT5510 |  120mA, Current Sinking, 10-bit I2C DAC for VCM Driver |  
| AT5510N-GRE | 120mA, Current Sinking, 10-bit I2C DAC for VCM Driver |  
  
AKM Semiconductor, Inc. 
| Part | Description |  
| AK4551 | Low power & small package 20bit CODEC |  
| AK4551VT | LOW POWER & SMALL PACKAGE 20BIT CODEC |  
| AKD4551 | Evaluation board |  
  
Alpha Industries 
| Part | Description |  
| DVE4551-06 | 25V Vrrm, 0.6pF Capacitance Varactor Diode |  
| DVE4551-12 | 25V Vrrm, 0.8pF Capacitance Varactor Diode |  
| DVE4551-18 | 25V Vrrm, 1.0pF Capacitance Varactor Diode |  
| DVE4551-24 | 25V Vrrm, 1.5pF Capacitance Varactor Diode |  
| DVE4551-30 | 25V Vrrm, 2.0pF Capacitance Varactor Diode |  
| DVE4551-36 | 25V Vrrm, 2.5pF Capacitance Varactor Diode |  
| DVE4551-42 | 25V Vrrm, 3.0pF Capacitance Varactor Diode |  
| DVE4551-48 | 25V Vrrm, 4.0pF Capacitance Varactor Diode |  
| DVE4551-54 | 25V Vrrm, 5.0pF Capacitance Varactor Diode |  
| DVE4551-60 | 25V Vrrm, 6.0pF Capacitance Varactor Diode |  
| DVE4551A | 25V Vrrm, 500fF Capacitance Varactor Diode |  
| DVE4551B | 25V Vrrm, 700fF Capacitance Varactor Diode |  
| DVE4551C | 25V Vrrm, 900fF Capacitance Varactor Diode |  
| DVE4551D | 25V Vrrm, 1.2pF Capacitance Varactor Diode |  
| DVE4551E | 25V Vrrm, 1.7pF Capacitance Varactor Diode |  
| DVE4551F | 25V Vrrm, 2.2pF Capacitance Varactor Diode |  
| DVE4551G | 25V Vrrm, 2.7pF Capacitance Varactor Diode |  
| DVE4551H | 25V Vrrm, 3.5pF Capacitance Varactor Diode |  
  
Alliance Semiconductor Corp. 
 
Advanced Micro Devices (AMD) 
 
AMI Semiconductor (AMIS) 
 
AMPLF 
| Part | Description |  
| FP5519-10 | Intergated Circuit, Semiconductor or Electronic Component description not yet available. View Datasheet. |  
| FP5519-11 | Intergated Circuit, Semiconductor or Electronic Component description not yet available. View Datasheet. |  
| FP5519-12 | Intergated Circuit, Semiconductor or Electronic Component description not yet available. View Datasheet. |  
| FP5519-13 | Intergated Circuit, Semiconductor or Electronic Component description not yet available. View Datasheet. |  
| FP5519-14 | Intergated Circuit, Semiconductor or Electronic Component description not yet available. View Datasheet. |  
| FP5519-2 | Intergated Circuit, Semiconductor or Electronic Component description not yet available. View Datasheet. |  
| FP5519-4 | Intergated Circuit, Semiconductor or Electronic Component description not yet available. View Datasheet. |  
| FP5519-7 | Intergated Circuit, Semiconductor or Electronic Component description not yet available. View Datasheet. |  
| FP5519-9 | Intergated Circuit, Semiconductor or Electronic Component description not yet available. View Datasheet. |  
  
Allegro MicroSystems, Inc. 
| Part | Description |  
| THC5551 | Transistors, Bipolar, Si NPN Low-Power |  
| TMPT5551 | Transistors, Bipolar, Si NPN Low-Power |  
  
Anachip Corp. 
| Part | Description |  
| AP1551 | 150KHz, Dual Channel 2A PWM Buck DC/DC Converter |  
  
Anadigics, Inc. 
| Part | Description |  
| AWS5516 |  GaAs IC SPDT Reflective Switch DC-2.0 GHz |  
| AWS5518S14 |  GaAs IC SPDT Reflective Switch DC-2.0 GHz |  
  
Anpec Electronics Corporation 
| Part | Description |  
| APL5551 |  Dual Channel 500mA/500mA Regulator + Reset IC |  
| APL5551KAI-TR | Dual Channel 500mA/500mA Regulator + Reset IC |  
| APL5551KAI-TRL | Dual Channel 500mA/500mA Regulator + Reset IC |  
| APL5551KI-TR | Dual Channel 500mA/500mA Regulator + Reset IC |  
  
APD Semiconductor 
| Part | Description |  
| 1N5518 | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5518A | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5518B | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5518C | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5518D | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5519 | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5519A | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5519B | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5519C | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5519D | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
| ALL5518 | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| ALL5518A | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| ALL5518B | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| ALL5518C | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| ALL5518D | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| ALL5519 | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
| ALL5519A | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
| ALL5519B | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
| ALL5519C | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
| ALL5519D | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
  
APLUS Integrated Circuits Inc. 
| Part | Description |  
| ASM25512C | 3 V, very low-cost voice synthesizer with 4-bit microprocessor |  
  
Atmel Corporation 
| Part | Description |  
| AT25512 | SPI Serial EEPROM |  
| AT25512-TH-B | SPI Serial EEPROM 512K (65,536 x 8) |  
| AT25512-TH-T |  SPI Serial EEPROM 512K (65,536 x 8) |  
| AT25512Y7-YH-T | SPI Serial EEPROM 512K (65,536 x 8) |  
| AT76C551 | Single Chip Bluetooth?? Controller |  
| TK5551_06 |  Standard Read/Write ID Transponder with Anti-collision |  
| TK5551 | STANDARD READ /WRITE ID TRANSPONDER WITH ANTI COLLISION |  
| TK5551M-PP | Standard Read/Write RFID IDIC® Transponder with Anticollision |  
  
AUK Co., Ltd. 
 
AUSTN 
 
BAUMR 
 
Burr-Brown Corp. 
| Part | Description |  
| 3551J | Operational Amplifier |  
| 3551S | Operational Amplifier |  
| 3551SQ | Operational Amplifier |  
| ADS5510 |  11-Bit, 125-MSPS Analog-To-Digital Converter |  
| ADS5510I | 11-Bit, 125-MSPS Analog-To-Digital Converter |  
| ADS5510IPAP | 11-Bit, 125-MSPS Analog-To-Digital Converter |  
| ADS5510IPAPG4 | 11-Bit, 125-MSPS Analog-To-Digital Converter |  
| ADS5510IPAPR | 11-Bit, 125-MSPS Analog-To-Digital Converter |  
| ADS5510IPAPRG4 |  11-Bit, 125-MSPS Analog-To-Digital Converter |  
| OPA551 | High-Voltage, High-Current OPERATIONAL AMPLIFIERS |  
| OPA551FA/500 | High-Voltage, High-Current Operational Amplifiers |  
| OPA551FA | High-Voltage, High-Current Operational Amplifiers |  
| OPA551PA | High-Voltage, High-Current Operational Amplifiers |  
| OPA551UA/2K5 | High-Voltage, High-Current Operational Amplifiers |  
| OPA551UA | High-Voltage, High-Current Operational Amplifiers |  
  
BKC Semiconductors Inc. 
| Part | Description |  
| 1N5551 | 3.0A Iout, 400V Vrrm Fast Recovery Rectifier |  
  
Boca Semiconductor Corp. 
| Part | Description |  
| 2N5551 | 150 V, NPN epitaxial planar selicon high voltage transistor |  
  
BOOKH 
 
Bourns 
| Part | Description |  
| 1830-A551 | T1/E1 Protection Assembly, Rail Mounted |  
  
CALLM 
| Part | Description |  
| 2SC3551 | 900V Vcbo, 5.0A Ic Low frequency power silicon NPN transistor |  
  
Calogic, LLC 
 
CANDD 
| Part | Description |  
| 1415513 | Bobbin type inductor. Inductance (+-10% at 1kHz) 1.5mH. |  
| 1415514 | Bobbin type inductor. Inductance (+-10% at 1kHz) 1.5mH. |  
| 1415517 | Bobbin type inductor. Inductance (+-10% at 1kHz) 1.5mH. |  
  
CDE 
| Part | Description |  
| 125513U020AF1B |  Type 125 -55 ??C to +125 ??C, Ultra-High Temperature, Military Grade |  
| 325512U025GS1 | Long-Life, Switching Power Grade Radial High Temperature and Ultra-Low ESR |  
| 325512U035JL1 |  Long-Life, Switching Power Grade Radial High Temperature and Ultra-Low ESR |  
| 450C551M250AK8 | Ultra-Ripple, Long-life, Inverter Grade, Radial Leaded The Ultimate in Ripple for Plug-in |  
| 520C551T450BH2B |  Long-life, Inverter Grade, Aluminum Ultra-Ripple, Long-life, Inverter Grade |  
| CG551T200U3C |  Reliable Screw Terminal Aluminum Electrolytic Capacitor 85 ??C, Screw Terminal Capacitors |  
| CG551T350V4C |  Reliable Screw Terminal Aluminum Electrolytic Capacitor 85 ??C, Screw Terminal Capacitors |  
| HES551G450V4C |  Type HES 105 ??C High Energy Screw Terminal Aluminum Electrolytic |  
  
CDI 
| Part | Description |  
| 1N5518 | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5518A | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5518B1 | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5518B | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5518C | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5518D | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5519 | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5519A | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5519B1 | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5519B | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5519C | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5519D | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
| CD5518B | 3.3V General purpose voltage reference/regulator diode |  
| CD5519B | 3.6V General purpose voltage reference/regulator diode |  
| CDLL5518 | 3.3V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL5518A | 3.3V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL5518B | 3.3V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL5518C | 3.3V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL5518D | 3.3V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL5519 | 3.6V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL5519A | 3.6V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL5519B | 3.6V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL5519C | 3.6V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL5519D | 3.6V, 500mWt General purpose voltage reference/regulator diode |  
  
CDIDI 
 
Continental Device India Ltd 
| Part | Description |  
| 2N5551 |  0.625W General Purpose NPN Plastic Leaded Transistor. 160V Vceo, 0.600A Ic, 80 - hFE |  
| CC5551 |  1.500W General Purpose NPN Plastic Leaded Transistor. 160V Vceo, 0.600A Ic, 80 - hFE |  
| CMBT5551 |  0.250W General Purpose NPN SMD Transistor. 160V Vceo, 0.600A Ic, 30 hFE. Complementary CMBT5401 |  
| CP551 |  0.800W General Purpose PNP Plastic Leaded Transistor. 60V Vceo, 1.000A Ic, 50 - 150 hFE |  
  
Central Semiconductor Corp 
| Part | Description |  
| 1N4551B | 4.7V, 50Wt General purpose voltage reference/regulator diode |  
| 1N5518 | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5518A | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5518B | Leaded Zener Diode General Purpose |  
| 1N5518C | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5518D | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5519 | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5519A | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5519B | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5519C | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5519D | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5551 | Leaded Rectifier Fast Recovery |  
| 2N551 | Transistors, Bipolar, Si NPN Low-Power |  
| 2N5551 | Small Signal Transistors TO-92 Case (Continued) |  
| 2N6551 | Complementary Silicon Transistors manufactured by the epitaial planar process designed for general purpose audio amplifier |  
| CMLT5551 | SMD Small Signal Transistor Dual NPN Low Noise Amplifier |  
| CMLT5551HC | SMD Small Signal Transistor NPN High Voltage |  
| CMPT5551 | NPN silicon  transistor |  
| CMPT5551E | ENHANCED SPECIFICATION SURFACE MOUNT NPN SILICON TRANSISTOR |  
| CMPT5551HC | SMD Small Signal Transistor NPN High Voltage |  
| CMUT5551 | SMD Small Signal Transistor NPN High Voltage |  
| CMUT5551E |  ENHANCED SPECIFICATION SURFACE MOUNT NPN SILICON TRANSISTOR |  
| CXT5551 | Surface mount NPN silicon transistor |  
| CXT5551E |  ENHANCED SPECIFICATION SURFACE MOUNT NPN SILICON TRANSISTOR |  
| CXT5551HC | SMD Small Signal Transistor NPN High Voltage |  
| CYT5551D | SURFACE MOUNT DUAL, ISOLATED NPN SILICON TRANSISTORS |  
| CYT5551HCD |  SURFACE MOUNT DUAL, ISOLATED NPN HIGH CURRENT SILICON TRANSISTORS |  
| CZT5551 | NPN silicon   transistor |  
| CZT5551HC | SMD Small Signal Transistor NPN High Voltage |  
  
CHEMI 
 
CHICG 
| Part | Description |  
| 0955115X | Neon Lamps T31/4(14x30mm) E14/17 |  
| 0955155X | Neon Lamps T31/4(14x30mm) E14/17 |  
| 18600551 | StarLEDs T31/4 (10x25mm)BA9s with half wave rectifier |  
| 18636551 |  Mega StarLEDs T5 (16x35mm) E14 with bridge rectifier |  
  
Cirrus Logic 
| Part | Description |  
| CDB5511 | Evaluation Board and Software |  
| CDB5512 |  Evaluation Board and Software |  
| CDB5513 | Evaluation Board and Software |  
| CS5510_09 |  16-bit and 20-bit, 8-pin ???? ADCs |  
| CS5510-AS | 16/20-bit, 8-pin ADC |  
| CS5510-ASZ |  16-bit and 20-bit, 8-pin Sigma-Delta ADC |  
| CS5511-AS | 16/20-bit, 8-pin ADC |  
| CS5511-ASZ | 16-bit and 20-bit, 8-pin ???? ADCs |  
| CS5512 |  16-bit and 20-bit, 8-pin ???? ADCs |  
| CS5512-AS | 16/20-bit, 8-pin ADC |  
| CS5512-BS |  16-bit and 20-bit, 8-pin Sigma-Delta ADC |  
| CS5512-BSZ |  16-bit and 20-bit, 8-pin ???? ADCs |  
| CS5513-AS | 16/20-bit, 8-pin ADC |  
| CS5513-BSZ | 16-bit and 20-bit, 8-pin ???? ADCs |  
| CS5516-AP | 16/20-bit bridge transducer A/D conveter |  
| CS5516-AS | 16/20-bit bridge transducer A/D conveter |  
| CS5516-ASZ |  16BIT/20-BIT BRIDGE TRANSDUCER A/D CONVERTER |  
  
CITZN 
| Part | Description |  
| ELD-5510 |  Low-profile type package, thinner than commercially available choke coils (1 mm or less) |  
  
CODI Semiconuctor 
| Part | Description |  
| 1N3551 | 11V Vrrm, 50pF Capacitance Varactor Diode |  
| 1N5518B | 3.3V, 400mWt General purpose voltage reference/regulator diode |  
| 1N5519B | 3.6V, 400mWt General purpose voltage reference/regulator diode |  
  
CONEX 
| Part | Description |  
| CX02551 | 3 gbps 1:16 deserializer |  
| CX95516 |  ADSL/ADSL2/ADSL2plus CO |  
  
CRANE 
| Part | Description |  
| A2S551 | UHF/Microwave Mixer Diode |  
  
CRYDM 
| Part | Description |  
| B551-2 | Additional Thyristor Module |  
| B551-2T | Additional Thyristor Module |  
| B551E2T | Additional Thyristor Module |  
| B551S2T | Additional Thyristor Module |  
| B551SE2T | Additional Thyristor Module |  
| L551 |  Power Modules |  
| L551C | Additional Thyristor Module |  
| L551F | Power Modules |  
  
CTS 
 
Cypress Semiconductor 
| Part | Description |  
| CY28551 |  Universal Clock Generator for Intel, VIA, and SIS?? |  
| CY28551LFXC | Universal Clock Generator for Intel, VIA, and SIS?? |  
| CY28551LFXC-3 |  Universal Clock Generator for Intel, VIA and SIS?? |  
| CY28551LFXCT |  Universal Clock Generator for Intel, VIA, and SIS?? |  
| CYM74S551PM-50C | OPTi Viper Chip Set Level II Cache Module Family |  
  
DAICO 
| Part | Description |  
| DS0551 | 400-2000MHz PIN diode SPST |  
  
DBLEC 
| Part | Description |  
| 6551-7212-AU |  660nm 50 mW Laser Diodes AUTO PACKAGE |  
  
DDC 
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