| No | Part number | Description ( Function ) | Manufacturers | |
| 10 | U422 | N-Channel Dual JFET N-Channel Dual JFET CORPORATION U421 – U426 FEATURES DESCRIPTION The Calogic U421 Series are Dual N-Channel JFETs on a monolithic structure designed specifically for very high input impedance for differential amplification and impedance matching. This series features ultra low input bias current (250 fempto amps, U421) while offering high gain at low operating currents and t |
 Calogic LLC |
|
| 9 | U422 | Low Leakage U422 HIGH INPUT IMPEDANCE MONOLITHIC DUAL N-CHANNEL JFET Linear Systems replaces discontinued Siliconix U422 The U422 is a high input impedance Monolithic Dual N-Channel JFET The U422 monolithic dual n-channel JFET is designed to provide very high input impedance for differential amplification and impedance matching. Among its many unique features, this series offers operating |
 Micross |
|
| 8 | U4221B | Radio Controlled Clock Receiver U4221B Radio Controlled Clock Receiver Description The U4221B is a bipolar integrated straight through receiver circuit in the frequency range of 60 to 80 kHz. The device is designed for radio controlled clock application. Features D Low power consumption D Very high sensitivity D High selectivity by quartz resonator D Stop-function available D Only a few |
 TEMIC Semiconductors |
|
| 7 | U4223B | Time-Code Receiver with A/D Converter U4223B Time-Code Receiver with A/D Converter Description The U4223B is a bipolar integrated straight-through receiver circuit in the frequency range of 40 kHz to 80 kHz. The device is designed for radio-controlled clock applications. Features D Very low power consumption D Very high sensitivity D High selectivity by using two crystal filters D Power-down mode available D Only |
 ATMEL Corporation |
|
| 6 | U4223B-MFS | Time-Code Receiver with A/D Converter U4223B Time-Code Receiver with A/D Converter Description The U4223B is a bipolar integrated straight-through receiver circuit in the frequency range of 40 kHz to 80 kHz. The device is designed for radio-controlled clock applications. Features D Very low power consumption D Very high sensitivity D High selectivity by using two crystal filters D Power-down mode available D Only |
ATMEL Corporation |
|
| 5 | U4223B-MFSG3 | Time-Code Receiver with A/D Converter U4223B Time-Code Receiver with A/D Converter Description The U4223B is a bipolar integrated straight-through receiver circuit in the frequency range of 40 kHz to 80 kHz. The device is designed for radio-controlled clock applications. Features D Very low power consumption D Very high sensitivity D High selectivity by using two crystal filters D Power-down mode available D Only |
ATMEL Corporation |
|
List of most widely used semiconductors
| Part Number | Function | Manufacturers | |
| 1N4007 | The 1N4007 is a rectification diode that is designed for high-voltage applications, typically up to 1000V. It has a maximum current rating of 1A and a forward voltage drop of around 0.7V. |
 Vishay |
|
| LM317 | This is a popular adjustable voltage regulator. |
 ON Semiconductor |
|
6N137 | LM393 | 2N3906 | 2N2222 | TIP120 | 1N5818 | LM324N | A1015 | SMAJ20CA |
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