| No | Part number | Description ( Function ) | Manufacturers | |
| 3 | MJE5740 | POWER DARLINGTON TRANSISTORS 8 AMPERES 300- 350- 400 VOLTS 80 WATTS MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MJE5740/D NPN Silicon Power Darlington Transistors The MJE5740, 41, 42 Darlington transistors are designed for high–voltage power switching in inductive circuits. They are particularly suited for operation in applications such as: • Small Engine Ignition • Switching Regulators • Inverters • Solenoid and R |
 Motorola Semiconductors |
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| 2 | MJE5740 | POWER DARLINGTON TRANSISTORS MJE5740, MJE5742 MJE5742 is a Preferred Device NPN Silicon Power Darlington Transistors The MJE5740 and MJE5742 Darlington transistors are designed for high−voltage power switching in inductive circuits. Features http://onsemi.com • Pb−Free Packages are Available* Applications • • • • • Small Engine Ignition Switching Regulators Inverter |
 ON |
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| 1 | MJE5740 | Trans Darlington NPN 300V 8A 3-Pin(3+Tab) TO-220AB Rail |
 New Jersey Semiconductor |
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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 |
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| LM317 | This is a popular adjustable voltage regulator. |
 ON Semiconductor |
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6N137 | LM393 | 2N3906 | 2N2222 | TIP120 | 1N5818 | LM324N | A1015 | SMAJ20CA |
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