| No | Part number | Description ( Function ) | Manufacturers | |
| 17 | ULN2803 | OCTAL PERIPHERAL DRIVER ARRAYS Order this document by ULN2803/D ULN2803 Octal High Voltage, High Current Darlington Transistor Arrays The eight NPN Darlington connected transistors in this family of arrays are ideally suited for interfacing between low logic level digital circuitry (such as TTL, CMOS or PMOS/NMOS) and the higher current/voltage requirements of lamps, relays, printer hammers or other similar |
 Motorola Inc |
|
| 16 | ULN2803 | OCTAL PERIPHERAL DRIVER ARRAYS Order this document by ULN2803/D ULN2803 Octal High Voltage, High Current Darlington Transistor Arrays The eight NPN Darlington connected transistors in this family of arrays are ideally suited for interfacing between low logic level digital circuitry (such as TTL, CMOS or PMOS/NMOS) and the higher current/voltage requirements of lamps, relays, printer hammers or other similar |
 ON Semiconductor |
|
| 15 | ULN2803 | (ULN2xxx) Darlington Transistor Arrays ww.DataSheet |
 Integrated Power Semiconductors |
|
| 14 | ULN2803 | EIGHT DARLINGTON ARRAYS UNISONIC TECHNOLOGIES CO., LTD ULN2803 LINEAR INTEGRATED CIRCUIT EIGHT DARLINGTON ARRAYS DESCRIPTION The UTC ULN2803 is high-voltage, high-current Darlington drivers comprised of eight NPN Darlington pairs. FEATURES *Output current (single output) 500mA MAX. *High sustaining voltage output 50V MIN. *Output clamp diodes *Inputs compatible with various types of logic |
 Unisonic Technologies |
|
| 13 | ULN2803 | (ULN2803 / ULN2804) High-Current Darlington Arrays
|
 FCI |
|
| 12 | ULN2803A | HIGH-VOLTAGE/ HIGH-CURRENT DARLINGTON ARRAYS 2803 THRU 2824 HIGH-VOLTAGE, HIGH-CURRENT DARLINGTON ARRAYS 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 Featuring continuous load current ratings to 500 mA for each of the drivers, the Series ULN28xxA/LW and ULQ28xxA/LW highvoltage, high-current Darlington arrays are ideally suited for interfacing between low-level logic circuitry and multiple peripheral power loads. Typical |
 Allegro MicroSystems |
|
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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