| No | Part number | Description ( Function ) | Manufacturers | |
| 2 | MMBZ5234BL | Zener Voltage Regulators MMBZ5221BLT1 Series Preferred Device Zener Voltage Regulators 225 mW SOT−23 Surface Mount This series of Zener diodes is offered in the convenient, surface mount plastic SOT−23 package. These devices are designed to provide voltage regulation with minimum space requirement. They are well suited for applications such as cellular phones, hand held portables, and high density |
 ON |
|
| 1 | MMBZ5234BLT1 | SEMICONDUCTOR |
 Leshan Radio Company |
|
[1]
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 |
|||