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        Semiconductor parts containing 491 
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Analog Devices 
| Part | Description |  
| ADM1491EBRZ | 16 Mbps, ESD Protected, Full-Duplex RS-485 Transceivers |  
| ADM1491EBRZ-REEL7 | 16 Mbps, ESD Protected, Full-Duplex RS-485 Transceivers |  
| ADM2491E | High Speed, ESD-Protected, Half-/Full-Duplex, iCoupler Isolated RS-485 Transceiver |  
| ADM3491 | 3.3V, Full Duplex, 840uA, 20Mbps, EIA RS-485 Transceiver |  
| ADM3491AN | 3.3 V, Full Duplex, 840 uA 20 Mbps, EIA RS-485 Transceiver |  
| ADM3491AR | 3.3 V, Full Duplex, 840 uA 20 Mbps, EIA RS-485 Transceiver |  
| ADM3491AR-REEL |  3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers |  
| ADM3491ARU | 3.3 V, Full Duplex, 840 uA 20 Mbps, EIA RS-485 Transceiver |  
| ADM3491ARZ | 3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers |  
| ADM3491ARZ-REEL | 3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers |  
| ADM3491ARZ-REEL7 | 3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers |  
| ADM3491E | 3.3 V, ??15 kV ESD-Protected, Half- and Full-Duplex, RS-485/RS-422 Transceivers |  
| ADM3491EARZ-REEL7 |  3.3 V, ??15 kV ESD-Protected, Half- and Full-Duplex, RS-485/RS-422 Transceivers |  
  
Advanced Monolithic Systems 
 
Analog Devices 
| Part | Description |  
| OP491 | Micropower Single-Supply Rail-to-Rail Input/Output Op Amps |  
| OP491GBC | Micropower Single-Supply Rail-to-Rail Input/Output Op Amps |  
| OP491GP | 16V; micropower single-supply rail-to-rail input/output Op amplifier. For industrial process control, battery-powered instrumentation, power supply control and protection, telecom |  
| OP491GPZ | Micropower Single-Supply Rail-to-Rail Input/Output Op Amps |  
| OP491GRU | 16V; micropower single-supply rail-to-rail input/output Op amplifier. For industrial process control, battery-powered instrumentation, power supply control and protection, telecom |  
| OP491GRU-REEL | Micropower Single-Supply Rail-to-Rail Input/Output Op Amps |  
| OP491GRUZ-REEL | Micropower Single-Supply Rail-to-Rail Input/Output Op Amps |  
| OP491GS | 16V; micropower single-supply rail-to-rail input/output Op amplifier. For industrial process control, battery-powered instrumentation, power supply control and protection, telecom |  
| OP491GS-REEL | Micropower Single-Supply Rail-to-Rail Input/Output Op Amps |  
| OP491GS-REEL7 | Micropower Single-Supply Rail-to-Rail Input/Output Op Amps |  
| OP491GSZ | Micropower Single-Supply Rail-to-Rail Input/Output Op Amps |  
| OP491GSZ-REEL | Micropower Single-Supply Rail-to-Rail Input/Output Op Amps |  
| OP491GSZ-REEL7 | Micropower Single-Supply Rail-to-Rail Input/Output Op Amps |  
| OP491HRU | Micropower Single-Supply Rail-to-Rail Input/Output Op Amps |  
  
Advanced Semiconductor, Inc 
| Part | Description |  
| 2N1491 | Transistors, Bipolar, Si NPN Low-Power |  
| 2N4910 | 40V Vcbo, 1.0A Ic Low frequency power silicon NPN transistor |  
| 2N4911 | 60V Vcbo, 1.0A Ic Low frequency power silicon NPN transistor |  
| 2N4912 | 80V Vcbo, 1.0A Ic Low frequency power silicon NPN transistor |  
| 2N4913 | 40V Vcbo, 5.0A Ic Low frequency power silicon NPN transistor |  
| 2N4914 | 60V Vcbo, 5.0A Ic Low frequency power silicon NPN transistor |  
| 2N4915 | 80V Vcbo, 5.0A Ic Low frequency power silicon NPN transistor |  
| 2N4916 | Transistors, Bipolar, Si PNP Low-Pwr HF |  
| 2N4917 | Transistors, Bipolar, Si PNP Low-Pwr HF |  
  
Advanced Linear Devices, Inc. 
| Part | Description |  
| ALD114913 | QUAD/DUAL N-CHANNEL DEPLETION MODE EPAD MATCHED PAIR MOSFET ARRAYS |  
| ALD114913SA |  QUAD/DUAL N-CHANNEL DEPLETION MODE EPAD MATCHED PAIR MOSFET ARRAYS |  
  
Advanced Micro Devices (AMD) 
| Part | Description |  
| MB84VP24491HK-70PBS | 70ns; V(in/out): -0.3 to +0.3V; stacked MCP 128M (x16) (multi-chip package) flash memory & 32M (x16) FCRAM CMOS |  
  
Allegro MicroSystems, Inc. 
| Part | Description |  
| 2N4916 | Transistors, Bipolar, Si PNP Low-Pwr HF |  
| 2N4917 | Transistors, Bipolar, Si PNP Low-Pwr HF |  
  
Anachip Corp. 
| Part | Description |  
| AF4910 | Dual N-Channel 30-V (D-S) MOSFET |  
| AF4910N | Dual N-Channel 30-V (D-S) MOSFET |  
| AF4910NS | V(ds): 30V; V(gs): +-20V; I(s): 2.3A; dual N-channel 30-V (D-S) MOSFET |  
| AF4910NSA | V(ds): 30V; V(gs): +-20V; I(s): 2.3A; dual N-channel 30-V (D-S) MOSFET |  
| AF4910NSL | V(ds): 30V; V(gs): +-20V; I(s): 2.3A; dual N-channel 30-V (D-S) MOSFET |  
| AF4910NSLA | V(ds): 30V; V(gs): +-20V; I(s): 2.3A; dual N-channel 30-V (D-S) MOSFET |  
  
Atmel Corporation 
 
ATT 
 
AUK Co., Ltd. 
| Part | Description |  
| SUR491J | NPN/PNP Epitaxial Planar Silicon Transistor |  
  
Burr-Brown Corp. 
| Part | Description |  
| TLV3491 | 1.8V, Nanopower PUSH-PULL OUTPUT COMPARATOR |  
| TLV3491AID | 1.8V nanopower PULL-PUSH output comparator. For portable medical equipment, wireless security systems, remote control systems, handheld instruments, ultra low power systems |  
| TLV3491AIDBVR | 1.8V nanopower PULL-PUSH output comparator. For portable medical equipment, wireless security systems, remote control systems, handheld instruments, ultra low power systems |  
| TLV3491AIDBVT | 1.8V nanopower PULL-PUSH output comparator. For portable medical equipment, wireless security systems, remote control systems, handheld instruments, ultra low power systems |  
| TLV3491AIDR | 1.8V nanopower PULL-PUSH output comparator. For portable medical equipment, wireless security systems, remote control systems, handheld instruments, ultra low power systems |  
  
BKC Semiconductors Inc. 
| Part | Description |  
| 1N4491 | 120V, 1.5Wt General purpose voltage reference/regulator diode |  
  
Boca Semiconductor Corp. 
| Part | Description |  
| 2N6491 | 80 V, PNP plastic power transistor |  
  
BOOKH 
 
CANDD 
| Part | Description |  
| 49100 | Dual winding surface mount inductor. Nominal inductance (10kHz,100mV 1&3, 2&4) 10uH. |  
| 49101 | Dual winding surface mount inductor. Nominal inductance (10kHz,100mV 1&3, 2&4) 100uH. |  
| 49150 | Dual winding surface mount inductor. Nominal inductance (10kHz,100mV 1&3, 2&4) 15uH. |  
| 49151 | Dual winding surface mount inductor. Nominal inductance (10kHz,100mV 1&3, 2&4) 150uH. |  
  
CDE 
| Part | Description |  
| 400C491M500AB8 |  Long-Life, C Radial Leaded, Aluminum Electrolytic |  
| 4CMC491M450AA8 | Type 4CMC 85 ?°C, High-Cap, Radial Leaded, Aluminum Electrolytic |  
| 550C491T300EA2B |  Ultra Ripple, Long-life, Inverter Grade, Aluminum Ultra-Ripple, Long Life, Computer Grade |  
| MLP491M250EA0A | 85 ??C Flatpack, Ultra-Long Life, Aluminum |  
| MLS491M200EA0C |  125 ??C Stainless Flatpack,Ultra-Long Life, Aluminum |  
| SFC28S55L491L-F | Lighting Capacitors, 90 ??C Rated, Oil Filled |  
| SFD37S60-10K491E-F |  Dual, Round & Oval, Oil-Filled Motor Run Capacitors |  
| SFD37S60-7.5K491E-F | Dual, Round & Oval, Oil-Filled Motor Run Capacitors |  
| SFD37S70-10K491E-F |  Dual, Round & Oval, Oil-Filled Motor Run Capacitors |  
| SFD37S70-5K491E-F |  Dual, Round & Oval, Oil-Filled Motor Run Capacitors |  
| SFD37S70-7.5K491E-F |  Dual, Round & Oval, Oil-Filled Motor Run Capacitors |  
| SFD37S80-5K491E-F |  Dual, Round & Oval, Oil-Filled Motor Run Capacitors |  
| SFD66S35K491B-F | Motor-Run and Power Supply Capacitors |  
| SFT37S60-10K491E-F | Dual, Round & Oval, Oil-Filled Motor Run Capacitors |  
| SFT37S60-5K491E-F | Dual, Round & Oval, Oil-Filled Motor Run Capacitors |  
| SFT37S60-7.5K491E-F |  Dual, Round & Oval, Oil-Filled Motor Run Capacitors |  
| SFT37S70-10K491E-F |  Dual, Round & Oval, Oil-Filled Motor Run Capacitors |  
| SFT37S70-5K491E-F | Dual, Round & Oval, Oil-Filled Motor Run Capacitors |  
| SFT44S35-15K491E-F |  Dual, Round & Oval, Oil-Filled Motor Run Capacitors |  
| SFT44S40-15K491E-F |  Dual, Round & Oval, Oil-Filled Motor Run Capacitors |  
| SFT44S45-10K491E-F |  Dual, Round & Oval, Oil-Filled Motor Run Capacitors |  
| SFT44S45-15K491E-F |  Dual, Round & Oval, Oil-Filled Motor Run Capacitors |  
| SFT44S45-5K491E-F | Dual, Round & Oval, Oil-Filled Motor Run Capacitors |  
| SFT44S45-7.5K491E-F | Dual, Round & Oval, Oil-Filled Motor Run Capacitors |  
| SFT44S50-10K491E-F | Dual, Round & Oval, Oil-Filled Motor Run Capacitors |  
| SFT44S50-7.5K491E-F |  Dual, Round & Oval, Oil-Filled Motor Run Capacitors |  
| T491A105K004AS-F |  Solid Tantalum Chip Capacitors |  
| T491A105K035AS-F | Solid Tantalum Chip Capacitors |  
| T491A105M004AS-F | Solid Tantalum Chip Capacitors |  
| T491A226K004AS-F | Solid Tantalum Chip Capacitors |  
| T491A226K035AS-F | Solid Tantalum Chip Capacitors |  
| T491A227K004AS-F |  Solid Tantalum Chip Capacitors |  
| T491A227K035AS-F |  Solid Tantalum Chip Capacitors |  
| T491A227M004AS-F |  Solid Tantalum Chip Capacitors |  
| T491A227M035AS-F |  Solid Tantalum Chip Capacitors |  
| T491B105K004AS-F |  Solid Tantalum Chip Capacitors |  
| T491B105M035AS-F | Solid Tantalum Chip Capacitors |  
| T491B226K004AS-F |  Solid Tantalum Chip Capacitors |  
| T491B226M004AS-F | Solid Tantalum Chip Capacitors |  
| T491B227K004AS-F | Solid Tantalum Chip Capacitors |  
| T491B227M035AS-F |  Solid Tantalum Chip Capacitors |  
| T491C105K004AS-F |  Solid Tantalum Chip Capacitors |  
| T491C105K035AS-F | Solid Tantalum Chip Capacitors |  
| T491C105M004AS-F | Solid Tantalum Chip Capacitors |  
| T491C226K035AS-F | Solid Tantalum Chip Capacitors |  
| T491C226M004AS-F |  Solid Tantalum Chip Capacitors |  
| T491C226M035AS-F | Solid Tantalum Chip Capacitors |  
| T491C227M004AS-F | Solid Tantalum Chip Capacitors |  
| T491D105K004AS-F |  Solid Tantalum Chip Capacitors |  
| T491D105K035AS-F | Solid Tantalum Chip Capacitors |  
| T491D105M004AS-F |  Solid Tantalum Chip Capacitors |  
| T491D105M035AS-F |  Solid Tantalum Chip Capacitors |  
| T491D226K035AS-F |  Solid Tantalum Chip Capacitors |  
| T491D226M004AS-F | Solid Tantalum Chip Capacitors |  
| T491D226M035AS-F |  Solid Tantalum Chip Capacitors |  
| T491D227K004AS-F |  Solid Tantalum Chip Capacitors |  
| T491D227K035AS-F | Solid Tantalum Chip Capacitors |  
| T491D227M004AS-F |  Solid Tantalum Chip Capacitors |  
| T491D227M035AS-F | Solid Tantalum Chip Capacitors |  
| T491S105M004AS-F |  Solid Tantalum Chip Capacitors |  
| T491S105M035AS-F | Solid Tantalum Chip Capacitors |  
| T491S226M035AS-F | Solid Tantalum Chip Capacitors |  
| T491S227K004AS-F |  Solid Tantalum Chip Capacitors |  
| T491S227K035AS-F | Solid Tantalum Chip Capacitors |  
| T491T105K004AS-F |  Solid Tantalum Chip Capacitors |  
| T491T105M004AS-F |  Solid Tantalum Chip Capacitors |  
| T491T105M035AS-F |  Solid Tantalum Chip Capacitors |  
| T491T156K004AS | Solid Tantalum Chip Capacitors |  
| T491T226K035AS-F | Solid Tantalum Chip Capacitors |  
| T491T226M004AS-F |  Solid Tantalum Chip Capacitors |  
| T491T226M035AS-F |  Solid Tantalum Chip Capacitors |  
| T491T227K004AS-F | Solid Tantalum Chip Capacitors |  
| T491T227K035AS-F |  Solid Tantalum Chip Capacitors |  
| T491T227M004AS-F | Solid Tantalum Chip Capacitors |  
| T491T227M035AS-F | Solid Tantalum Chip Capacitors |  
| T491X105K004AS-F |  Solid Tantalum Chip Capacitors |  
| T491X105M004AS-F |  Solid Tantalum Chip Capacitors |  
| T491X105M035AS-F |  Solid Tantalum Chip Capacitors |  
| T491X226K004AS-F | Solid Tantalum Chip Capacitors |  
| T491X226M004AS-F |  Solid Tantalum Chip Capacitors |  
| T491X226M035AS-F | Solid Tantalum Chip Capacitors |  
| T491X227K004AS-F |  Solid Tantalum Chip Capacitors |  
| T491X227K035AS-F |  Solid Tantalum Chip Capacitors |  
| T491X227M004AS-F |  Solid Tantalum Chip Capacitors |  
  
CDI 
| Part | Description |  
| 1N4910 | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4910A | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4911 | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4911A | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4912 | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4912A | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4913 | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4913A | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4914 | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4914A | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4915 | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4915A | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4916 | 19.2V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4916A | 19.2V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4917 | 19.2V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4917A | 19.2V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4918 | 19.2V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4918A | 19.2V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4919 | 19.2V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4919A | 19.2V, 400mWt General purpose voltage reference/regulator diode |  
| CDLL4491 | 120V, 1.5Wt General purpose voltage reference/regulator diode |  
| CDLL4910 | 12.8V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL4910A | 12.8V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL4911 | 12.8V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL4911A | 12.8V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL4912 | 12.8V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL4912A | 12.8V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL4913 | 12.8V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL4913A | 12.8V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL4914 | 12.8V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL4914A | 12.8V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL4915 | 12.8V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL4915A | 12.8V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL4916 | 19.2V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL4916A | 19.2V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL4917 | 19.2V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL4917A | 19.2V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL4918 | 19.2V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL4918A | 19.2V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL4919 | 19.2V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL4919A | 19.2V, 500mWt General purpose voltage reference/regulator diode |  
| CDLL6491 | 5.6V, 1.5Wt General purpose voltage reference/regulator diode |  
  
CDIDI 
| Part | Description |  
| 1N4910 | 12.8 volt temperature compensated zener reference diode |  
| 1N4910A | 12.9 volt temperature compensated zener reference diode |  
| 1N4911 | 12.8 volt temperature compensated zener reference diode |  
| 1N4911A | 12.8 volt temperature compensated zener reference diode |  
| 1N4912 | 12.8 volt temperature compensated zener reference diode |  
| 1N4912A | 12.8 volt temperature compensated zener reference diode |  
| 1N4913 | 12.8 volt temperature compensated zener reference diode |  
| 1N4913A | 12.8 volt temperature compensated zener reference diode |  
| 1N4914 | 12.8 volt temperature compensated zener reference diode |  
| 1N4914A | 12.8 volt temperature compensated zener reference diode |  
| 1N4915 | 12.8 volt temperature compensated zener reference diode |  
| 1N4915A | 12.8 volt temperature compensated zener reference diode |  
| 1N4916 | 19.2 volt (nominal zener voltage +-5%) temperature compensated zener reference diode |  
| 1N4916A | 19.2 volt (nominal zener voltage +-5%) temperature compensated zener reference diode |  
| 1N4917 | 19.2 volt (nominal zener voltage +-5%) temperature compensated zener reference diode |  
| 1N4917A | 19.2 volt (nominal zener voltage +-5%) temperature compensated zener reference diode |  
| 1N4918 | 19.2 volt (nominal zener voltage +-5%) temperature compensated zener reference diode |  
| 1N4918A | 19.2 volt (nominal zener voltage +-5%) temperature compensated zener reference diode |  
| 1N4919 | 19.2 volt (nominal zener voltage +-5%) temperature compensated zener reference diode |  
| 1N4919A | 19.2 volt (nominal zener voltage +-5%) temperature compensated zener reference diode |  
| 1N6491 | 5.6 Volt, 1.5 Watt zener diode |  
| 1N6491US | 5.6 Volt, 1.5 Watt zener diode |  
| CDLL4910 | 4 mA, temperature compensated zener reference diode |  
| CDLL4910A | 4 mA, temperature compensated zener reference diode |  
| CDLL4911 | 4 mA, temperature compensated zener reference diode |  
| CDLL4911A | 4 mA, temperature compensated zener reference diode |  
| CDLL4912 | 7.5 mA, temperature compensated zener reference diode |  
| CDLL4912A | 7.5 mA, temperature compensated zener reference diode |  
| CDLL4913 | 7.5 mA, temperature compensated zener reference diode |  
| CDLL4913A | 7.5 mA, temperature compensated zener reference diode |  
| CDLL4914 | 7.5 mA, temperature compensated zener reference diode |  
| CDLL4914A | 7.5 mA, temperature compensated zener reference diode |  
| CDLL4915 | 7.5 mA, temperature compensated zener reference diode |  
| CDLL4915A | 7.5 mA, temperature compensated zener reference diode |  
| CDLL4916 | 0.5 mA, temperature compensated zener reference diode |  
| CDLL4916A | 0.5 mA, temperature compensated zener reference diode |  
| CDLL4917 | 0.5 mA, temperature compensated zener reference diode |  
| CDLL4917A | 0.5 mA, temperature compensated zener reference diode |  
| CDLL4918 | 0.5 mA, temperature compensated zener reference diode |  
| CDLL4918A | 0.5 mA, temperature compensated zener reference diode |  
| CDLL4919 | 1 mA, temperature compensated zener reference diode |  
| CDLL4919A | 1 mA, temperature compensated zener reference diode |  
  
Continental Device India Ltd 
| Part | Description |  
| 1N3491 | 25A Iout, 50V Vrrm General Purpose Silicon Rectifier |  
| 2N6491 |  75.000W Medium Power PNP Plastic Leaded Transistor. 80V Vceo, 15.000A Ic, 20 - 150 hFE. |  
| CMMT491 |  0.500W General Purpose NPN SMD Transistor. 60V Vceo, 1.000A Ic, 100 - 300 hFE. Complementary CMMT591 |  
| CTN491 | Transistors, Bipolar, Si PNP Low-Power |  
  
Central Semiconductor Corp 
| Part | Description |  
| 1N4491 | 120V, 1.5Wt General purpose voltage reference/regulator diode |  
| 2N4910 | Power Transistors |  
| 2N491 | Unijunction Transistor |  
| 2N4911 | Power Transistors |  
| 2N4912 | Power Transistors |  
| 2N4913 | COMPLEMENTARY SILICON POWER TRANSISTORS |  
| 2N4914 | COMPLEMENTARY SILICON POWER TRANSISTORS |  
| 2N4915 | COMPLEMENTARY SILICON POWER TRANSISTORS |  
| 2N4916 | Transistors, Bipolar, Si PNP Low-Pwr HF |  
| 2N4917 | Transistors, Bipolar, Si PNP Low-Pwr HF |  
| 2N4918 | Leaded Power Transistor General Purpose |  
| 2N4919 | Leaded Power Transistor General Purpose |  
| 2N491A | Unijunction Transistor |  
| 2N491B | Unijunction Transistor |  
| 2N6491 | NPN SILICON TRANSISTOR |  
| CMLT491E |  SURFACE MOUNT PICOmini NPN SILICON TRANSISTOR |  
| CMPT491E | NPN silicon transistor |  
| CXT491E | SURFACE MOUNT NPN SILICON TRANSISTOR |  
| PN4916 | Small Signal Transistors |  
| PN4917 | Small Signal Transistors |  
  
CHEMI 
 
CHICG 
| Part | Description |  
| CMD49124A |  High Performance Rectangular LED Lamps |  
| CMD5491A | General purpose red/green color dome-style LED |  
| CMN4910A | LED Display |  
  
Consumer Microcircuits Limited 
| Part | Description |  
| DE6491 | CMX649-based wireless voice link demonstration kit that demonstrates CMX649 ADM. |  
  
CODI Semiconuctor 
| Part | Description |  
| 1N4910 | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4910A | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4911 | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4911A | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4912 | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4912A | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4913 | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4913A | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4914 | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4914A | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4915 | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4915A | 12.8V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4916 | 19.2V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4916A | 19.2V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4917 | 19.2V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4917A | 19.2V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4918 | 19.2V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4918A | 19.2V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4919 | 19.2V, 400mWt General purpose voltage reference/regulator diode |  
| 1N4919A | 19.2V, 400mWt General purpose voltage reference/regulator diode |  
  
CRIMS 
| Part | Description |  
| 2N4910 | 40V Vcbo, 1.0A Ic Low frequency power silicon NPN transistor |  
| 2N4911 | 60V Vcbo, 1.0A Ic Low frequency power silicon NPN transistor |  
| 2N4912 | 80V Vcbo, 1.0A Ic Low frequency power silicon NPN transistor |  
  
CRYDM 
| Part | Description |  
| L491 | SCR Assembly/Module |  
  
Cypress Semiconductor 
 
DESC 
| Part | Description |  
| 1N4491+JAN | 120V, 1.5Wt General purpose voltage reference/regulator diode |  
| 1N4491+JANS | 120V, 1.5Wt General purpose voltage reference/regulator diode |  
| 1N4491+JANTX | 120V, 1.5Wt General purpose voltage reference/regulator diode |  
| 1N4491+JANTXV | 120V, 1.5Wt General purpose voltage reference/regulator diode |  
| 1N4491US+JAN | 120V, 1.5Wt General purpose voltage reference/regulator diode |  
| 1N4491US+JANS | 120V, 1.5Wt General purpose voltage reference/regulator diode |  
| 1N4491US+JANTX | 120V, 1.5Wt General purpose voltage reference/regulator diode |  
| 1N4491US+JANTXV | 120V, 1.5Wt General purpose voltage reference/regulator diode |  
| 1N6491+JAN | 5.6V, 1.5Wt General purpose voltage reference/regulator diode |  
| 1N6491+JANTX | 5.6V, 1.5Wt General purpose voltage reference/regulator diode |  
| 1N6491+JANTXV | 5.6V, 1.5Wt General purpose voltage reference/regulator diode |  
| 1N6491US+JAN | 5.6V, 1.5Wt General purpose voltage reference/regulator diode |  
| 1N6491US+JANTX | 5.6V, 1.5Wt General purpose voltage reference/regulator diode |  
| 1N6491US+JANTXV | 5.6V, 1.5Wt General purpose voltage reference/regulator diode |  
| 2N491A+JAN | Unijunction Transistor |  
| 2N491A+JANTX | Unijunction Transistor |  
  
DGTRN 
| Part | Description |  
| 2N4910 | 40V Vcbo, 1.0A Ic Low frequency power silicon NPN transistor |  
| 2N4911 | 60V Vcbo, 1.0A Ic Low frequency power silicon NPN transistor |  
| 2N491 | Unijunction Transistor |  
| 2N4912 | 80V Vcbo, 1.0A Ic Low frequency power silicon NPN transistor |  
| 2N4913 | 40V Vcbo, 5.0A Ic Low frequency power silicon NPN transistor |  
| 2N4914 | 60V Vcbo, 5.0A Ic Low frequency power silicon NPN transistor |  
| 2N4915 | 80V Vcbo, 5.0A Ic Low frequency power silicon NPN transistor |  
| 2N4916 | Transistors, Bipolar, Si PNP Low-Pwr HF |  
| 2N491A | Unijunction Transistor |  
| 2N491B | Unijunction Transistor |  
  
DUBLR 
 
DYNEX 
| Part | Description |  
| TA44910W | 1000V asymmetric thyristor |  
| TA44912W | 1200V asymmetric thyristor |  
| TA44914W | 1400V asymmetric thyristor |  
  
ECC 
| Part | Description |  
| DM10-491 | Intergated Circuit, Semiconductor or Electronic Component description not yet available. View Datasheet. |  
  
Philips ECG Inc. 
| Part | Description |  
| ECG4918 | 13V Vbr, 82A Ipp transient voltage suppressor |  
| ECG4919 | 13V Vbr, 82.0A Ipp bidirectional transient voltage suppressor |  
| ECG5491 | 100V V[drm] Max., 6.2A I[T] Max. Silicon Controlled Rectifier |  
  
EDAL 
| Part | Description |  
| BA491-100 |  SILICON GENERAL PURPOSE 3.0 AMP DIODES |  
| BA491-10 | SILICON GENERAL PURPOSE 3.0 AMP DIODES |  
| BA491-150 |  SILICON GENERAL PURPOSE 3.0 AMP DIODES |  
| BA491-20 | SILICON GENERAL PURPOSE 3.0 AMP DIODES |  
| BA491-50 | SILICON GENERAL PURPOSE 3.0 AMP DIODES |  
| BA491-5 |  SILICON GENERAL PURPOSE 3.0 AMP DIODES |  
| BA491-60 | SILICON GENERAL PURPOSE 3.0 AMP DIODES |  
| BA491-70 |  SILICON GENERAL PURPOSE 3.0 AMP DIODES |  
  
EPCOS 
| Part | Description |  
| B4911 |  SAW Components Low-Loss Filter for Mobile Communication 155,52 MHz |  
| B65491_06 |  Ferrites and accessories |  
| B65491 | P 3,3 ?? 2,6 Pot cores are supplied in sets |  
| B88069X4911T902 | Surge arrester 2-electrode arrester |  
  
EUPEC 
| Part | Description |  
| T491N20TOC | 2.0kV V[drm] Max., 490A I[T] Max. Silicon Controlled Rectifier |  
| T491N20TOF | 2.0kV V[drm] Max., 490A I[T] Max. Silicon Controlled Rectifier |  
| T491N22TOC | 2.2kV V[drm] Max., 490A I[T] Max. Silicon Controlled Rectifier |  
| T491N22TOF | 2.2kV V[drm] Max., 490A I[T] Max. Silicon Controlled Rectifier |  
| T491N25TOC | 2.5kV V[drm] Max., 490A I[T] Max. Silicon Controlled Rectifier |  
| T491N25TOF | 2.5kV V[drm] Max., 490A I[T] Max. Silicon Controlled Rectifier |  
  
EUROQ 
 
EVRLT 
 
Exar 
| Part | Description |  
| SP1491ECN-L |  Full Duplex RS-485 Transceivers12345678VCC |  
| SP1491EEN-L |  Full Duplex RS-485 Transceivers12345678VCC |  
  
Fairchild Semiconductor 
 
FEMA 
| Part | Description |  
| LT4911 | General purpose red dome-style LED |  
| LT4911G | General purpose red dome-style LED |  
| LT4912 | General purpose red dome-style LED |  
| LT4912G | General purpose red dome-style LED |  
| LT4913 | General purpose red dome-style LED |  
| LT4913G | General purpose red dome-style LED |  
| LT4914 | General purpose red dome-style LED |  
| LT4914G | General purpose red dome-style LED |  
  
FERNT 
 
Fujitsu Microelectronics 
 
Freescale Semiconductor 
| Part | Description |  
| MC34910BAC |  LIN System Basis Chip with 2x60mA High Side Drivers |  
| MC34911BAC |  LIN System Basis Chip with DC Motor Pre-driver |  
| MC34911BACR2 |  LIN System Basis Chip with DC Motor Pre-driver |  
| MC34911BR2 | LIN System Basis Chip with DC Motor Pre-driver |  
| MC34911G5AC | LIN System Basis Chip with DC Motor Pre-driver |  
| MC34912BAC |  LIN System Basis Chip with DC Motor Pre-driver and Current |  
| MC34912BACR2 |  LIN System Basis Chip with DC Motor Pre-driver and Current |  
| MC34912BR2 |  LIN System Basis Chip with DC Motor Pre-driver and Current Sense |  
| MC34912G5R2 | LIN System Basis Chip with DC Motor Pre-driver and Current Sense |  
| T491D106K035AS |  N-Channel Enhancement-Mode Lateral MOSFETs |  
| T491X226K035A5 |  N-Channel Enhancement-Mode Lateral MOSFETs |  
  
GDIOD 
| Part | Description |  
| 1N1491 | 750mA Iout, 500V Vrrm General Purpose Silicon Rectifier |  
| 1N2491 | 6.0A Iout, 50V Vrrm General Purpose Silicon Rectifier |  
  
Gennum Corporation 
| Part | Description |  
| GS4910B |  HD/SD/Graphics Clock and Timing Generator with GENLOCK |  
 
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