| No | Part number | Description ( Function ) | Manufacturers | |
| 3 | BD130 | NPN Silicon Transistor BD130 S w w w .D a t a h t e e 4U . m o c NPN SILICON TRANSISTOR POWER LINERAR AND SWITCHING APPLICATIONS The BD130 is a silicon epitaxial-base NPN transistor in JEDEC TO3 metal case. It is intended for power switching circuits, series and shunt regulators, output stages and high fidelity amplifiers. ABSOLUTE MAXIMUM RATINGS Symbol VCEO VCBO VCEX IC IB PT Collector |
 Comset Semiconductors |
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| 2 | BD130 | NPN Silicon Power w w a D . w S a t e e h U 4 t m o .c w w .D w t a S a e h U 4 t e .c m o w w w .D a S a t e e h U 4 t m o .c |
 Solitron Devices |
|
| 1 | BD13003B | NPN Plastic Encapsulated Transistor BD13003B Elektronische Bauelemente 1.5A , 700V NPN Plastic Encapsulated Transistor RoHS Compliant Product A suffix of “-C” specifies halogen & lead-free FEATURES Power Switching Applications TO-126 CLASSIFICATION OF ts Product-Rank Range Product-Rank Range BD3DD13003-A1 2-2.5 (µs) BD3DD13003-B1 3-3.5 (µs) BD3DD13003-A2 A 2.5-3 (µs) F E B BD3DD |
 SeCoS |
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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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