Here are some links to data sheets of semiconductors. The table contains most of the semiconductors used in the Elecraft K2 transceiver, its options and modifications but is not limited to those. Additionally data sheets of most of the semiconductors used in the Elecraft Transverters, the K1 transceiver, the KX1 transceiver and in the Mini-Module kits may be found here.
All data sheets are in Portable Document Format (PDF). If you want to download a data sheet just click onto the according link using the right mouse button and select your destination for the file.
NOTE1: To get data sheets for processors made by Microchip Technology Inc (PIC...) please use the link to their Data Sheet Finder[1] shown at the bottom of this page.
NOTE2: Please send me an e-mail if a link is broken, if you would like a semiconductor to be added or if you know better links than those provided here.
| 1N191 | Point Contact Germanium Diode |
| 1N34A | Point Contact Germanium Diode |
| 1N4003 | General Purpose Rectifier |
| 1N4007 | General Purpose Rectifier |
| 1N4148 | High-Speed Switching Diode |
| 1N4753 | Silicon Zener Diode; V_Z=36V |
| 1N5231B | Silicon Zener Diode; V_Z=5,1V |
| 1N5235B | Silicon Zener Diode; V_Z=6,8V |
| 1N5404 | General Purpose Rectifier |
| 1N5711 | Small Signal Schottky Diode |
| 1N5817 | Low Drop Power Schottky Rectifier |
| 1N5821 | Low Drop Power Schottky Rectifier |
| 1SV149 | Voltage Variable Capacitance Diode |
| 25LC320 | 32k EEPROM, I2C |
| 2N2222 | NPN Switching Transistor |
| 2N2222A | NPN Switching Transistor |
| 2N3904 | NPN General Purpose Transistor |
| 2N3906 | PNP General Purpose Transistor |
| 2N4124 | NPN General Purpose Transistor |
| 2N5109 (Microsemi) | NPN Silicon RF Transistor |
| 2N5109 (STI) | NPN Silicon RF Transistor |
| 2N7000 | N-Channel Enhancement Mode Field Effect Transistor |
| 2SC1969 | NPN Silicon RF Power Transistor (HF, 10W) |
| 2SC2133 | NPN Silicon RF Power Transistor (VHF, 10W) |
| 2SC2166 | NPN Silicon RF Power Transistor (HF, 3W) |
| 2SC2290 | NPN Silicon RF Power Transistor (HF, 60W) |
| 2SC2879 | NPN Silicon RF Power Transistor (HF, 100W) |
| 5082-3081 | PIN Diode for RF Switching and Attenuating |
| 74HC74 (Texas Instruments) | Dual D-Type Positive-Edge-Triggered Flip-Flops (HC74) |
| 74HC165N | Parallel-in/Serial-out 8-Bit Shift Register |
| 7805 | 1A Positive Voltage Regulator; V_OUT=5V |
| 78L05 | 0,1A Positive Voltage Regulator; V_OUT=5V |
| 78L06 | 0,1A Positive Voltage Regulator; V_OUT=6V |
| 78L06AWC | 0,1A Positive Voltage Regulator; V_OUT=6V |
| 78L09A | 0,1A Positive Voltage Regulator; V_OUT=9V |
| 78M05 | 0,5A Positive Voltage Regulator; V_OUT=5V |
| 95SQ015 | Schottky Rectifier; ultra low forward voltage drop |
| AD8307 | Logarithmic Amplifier DC-500 MHz, 92 dB |
| AD9834 | Low Power DDS; 10-bit DAC |
| ARF463A | RF Power MOSFET |
| ARF463B | RF Power MOSFET |
| ATF34143 | Low Noise PHEMT; for Low Noise Amplifiers |
| ATMEGA8L | Processor (Atmel) |
| BAT41 | Schottky Barrier Diode | BAT85 | Schottky Barrier Diode |
| BC557 (Philips) | PNP General Purpose Transistor |
| BFR96 (MOT) | NPN Silicon High-Frequency Transistor |
| BS170 | N-Channel Enhancement Mode Field Effect Transistor |
| EL5146C | Op Amp, 100MHz, Single Supply |
| ERA-5 | Monolithic Amplifier; Z=50 Ohm |
| ERA-6 | Monolithic Amplifier; Z=50 Ohm |
| FST3253 (Fairchild) | Dual 4:1 Multiplexer/Demultiplexer Bus Switch |
| GTL2002 (NXP) | 2-bit bidirectional low voltage translator |
| IRF830 | Power MOSFET |
| IRL620 | Power MOSFET |
| J309 | N-Channel RF Amplifier FET |
| J310 | N-Channel RF Amplifier FET |
| LM2930T-8 | 3-Terminal Positive Regulator; V_OUT=8V |
| LM340T-5 | 3-Terminal Positive Regulator; V_OUT=5V |
| LM348 | Quad Operational Amplifier |
| LM358 | Dual Operational Amplifier |
| LM380N-8 | 2.5W Audio Power Amplifier |
| LM386N-1 | Low Voltage Audio Power Amplifier |
| LM393 | Dual Differential Comparator |
| LM567 | Tone Decoder |
| LM83 | Digital Temperature Sensor |
| LM833N | Dual Audio Operational Amplifier |
| LM837N | Low Noise Quad Operational Amplifier |
| LMC567 | Low Power Tone Decoder |
| LMC6482AIN | CMOS Dual Operational Amplifier |
| LMC660 | CMOS Quad Operational Amplifier |
| LMC662 | CMOS Dual Operational Amplifier |
| LP2992 | Low Noise Ultra Low-Dropout Voltage Regulator (250 mA) |
| LT1039 | RS232 Driver/Receiver |
| LT1252 | Low Cost Video Amplifier |
| LTC1451 | 12-Bit Micropower DAC |
| LT6231 | 215MHz, Rail-to-Rail Output OpAmp |
| M57735 | RF Power Module (50MHz) |
| MAX518 | 2-Wire Serial 8-Bit DAC |
| MAX522 | Dual, 8-Bit, Voltage-Output Serial DAC |
| MAX534 | Low-Power, 8-Bit Quad DAC |
| MAX1406CPE | 3-Tx/3-Rx RS-232 IC |
| MAX4489 | Low-Distortion, Wide-Band Op Amps |
| MAR-3 | Monolithic Amplifier; Z=50 Ohm |
| MAR-6 | Monolithic Amplifier; Z=50 Ohm |
| MC1350P | Monolithic IF Amplifier |
| MC145170P2 | PLL Frequency Synthesizer with Serial Interface |
| MC7805ACT (On Semic.) | 1A Positive Voltage Regulator, V_OUT = 5V |
| MC78L05ACP (On Semic.) | 0,1A Positive Voltage Regulator, V_OUT = 5V |
| MIC5891 (Micrel) | 8-Bit Serial-Input Latched Source Driver |
| MJE182 | NPN Silicon Transistor |
| MPSA14 | NPN Darlington Transistor |
| MPS918 | NPN Silicon Transistor |
| MPS5179 | NPN Silicon High-Frequency Transistor |
| MV209 | Voltage Variable Capacitance Diode |
| NE602 | Double-balanced Mixer and Oscillator |
| NE612 | Double-balanced Mixer and Oscillator |
| NJU6355ED | Serial I/O Real Time Clock |
| PCF8566 | Universal LCD driver for low multiplex rates |
| PIC... | Please use the Microchip Data Sheet Finder[1]; link shown below |
| PN2222A | NPN General Purpose Transistor |
| RA30H1317M | MOSFET RF Power Module |
| RA30H2127M | MOSFET RF Power Module |
| RD16HHF1 | Silicon MOSFET Power Transistor 30MHz,16W |
| SA602AN | Double-balanced Mixer and Oscillator |
| SA612AN | Double-balanced Mixer and Oscillator |
| SB530 | Schottky Barrier Rectifier |
| SD101A | Small Signal Schottky Barrier Diode |
| SD1405 | NPN Silicon RF Power Transistor |
| SD1487 | NPN Silicon RF Power Transistor |
| SGA-7489 | DC-3000 MHz Cascadable Gain Block |
| SI570 | Any-rate I2C Programmable XO/VCXO (10 to 945 MHz) |
| SN74HC74 (Texas Instruments) | Dual D-Type Positive-Edge-Triggered Flip-Flops (HC74) |
| SSM2165-1 | Microphone Preamplifier, variable Compression |
| TD62083 | 8ch Darlington Sink Driver (Toshiba) |
| TLV2462 (Texas Inst.) | Low Power Rail-to-Rail OP Amp |
| TPIC6595 (Texas Inst.) | 8-Bit Shift Register |
| UCN5891A (Allegro) | 8-Bit Serial-Input Latched Source Drivers |
| ULN2003 | Seven Darlington Transistors Array |
| ULN2803 | Eight Darlington Transistors Array |
| ZR78L06C | Fixed Positive Voltage Regulator; V_OUT=6V/2,5% |
| ZSR600C | Fixed Positive Voltage Regulator; V_OUT=6V/2,5% |
| ZTX789A | PNP Silicon High Gain Transistor |
| ZVN4424A | N-Channel Enhancement Mode DMOS FET |
| ZVN4424G | N-Channel Enhancement Mode DMOS FET |
| ZVN4424Z | N-Channel Enhancement Mode DMOS FET |
| ZVP2106G | P-Channel Enhancement Mode DMOS FET |
| ZXRE125 | Micropower 1,22V Voltage Reference |
Note: Some devices have the same data sheet in common. Either these belong to a family of similar devices which all are described in a single data sheet or the same device is available with different names. Such devices are listed within one row of the following table.
| 1N4001 to 1N4007 | 1N4007 |
| 1N5231B | 1N5235B |
| 2N2222 | 2N2222A |
| 74HC74 | SN74HC74 |
| 78L06 | 78L06AWC |
| ARF463A | ARF463B |
| ERA-5 | ERA-6 |
| MAR-3 | MAR-6 |
| NE602 | SA602AN |
| NE612 | SA612AN |
Using the following links you will leave WWW.QSL.NET/DF7TV.
[1] Microchip PICmicro Microcontrollers Data Sheet Finder