| No | Part number | Description ( Function ) | Manufacturers | |
| 2 | STZT2222 | MEDIUM POWER AMPLIFIER STZT2222 STZT2222A MEDIUM POWER AMPLIFIER ADVANCE DATA s s s s SILICON EPITAXIAL PLANAR NPN TRANSISTORS MINIATURE PLASTIC PACKAGE FOR APPLICATION IN SURFACE MOUNTING CIRCUITS GENERAL PURPOSE MAINLY INTENDED FOR USE IN MEDIUM POWER INDUSTRIAL APPLICATION AND FOR AUDIO AMPLIFIER OUTPUT STAGE PNP COMPLEMENTS ARE STZT2907 AND STZT2907A RESPECTIVELY 2 1 SOT-223 2 3 INTERNAL |
 ST Microelectronics |
|
| 1 | STZT2222A | MEDIUM POWER AMPLIFIER STZT2222 STZT2222A MEDIUM POWER AMPLIFIER ADVANCE DATA s s s s SILICON EPITAXIAL PLANAR NPN TRANSISTORS MINIATURE PLASTIC PACKAGE FOR APPLICATION IN SURFACE MOUNTING CIRCUITS GENERAL PURPOSE MAINLY INTENDED FOR USE IN MEDIUM POWER INDUSTRIAL APPLICATION AND FOR AUDIO AMPLIFIER OUTPUT STAGE PNP COMPLEMENTS ARE STZT2907 AND STZT2907A RESPECTIVELY 2 1 SOT-223 2 3 INTERNAL |
ST Microelectronics |
|
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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