| No | Part number | Description ( Function ) | Manufacturers | |
| 3 | BU126 | POWER TRANSISTORS(3A/300V/30A) A A A |
 Mospec Semiconductor |
|
| 2 | BU126 | HIGH VOLTAGE POWER TRANSISTORS |
 Boca Semiconductor Corporation |
|
| 1 | BU126 | SILICON POWER TRANSISTOR SavantIC Semiconductor Product Specification Silicon NPN Power Transistors BU126 DESCRIPTION ·With TO-3 package ·High breakdown voltage APPLICATIONS ·For voltage regulator ,inverter,switching mode power supply applications PINNING(see fig.2) PIN 1 2 3 Base Emitter Collector Fig.1 simplified outline (TO-3) and symbol DESCRIPTION Absolute maximum rati |
 SavantIC |
|
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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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