| No | Part number | Description ( Function ) | Manufacturers | |
| 2 | 74HC14A | MC74HC14A MC74HC14A Hex Schmitt-Trigger Inverter High–Performance Silicon–Gate CMOS The MC74HC14A is identical in pinout to the LS14, LS04 and the HC04. The device inputs are compatible with Standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. The HC14A is useful to “square up” slow input rise and fall times. Due to hysteresis voltage of the Schmi |
 ON Semiconductor |
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| 1 | 74HC14AP | TC74HC14AP TC74HC14AP/AF/AFN TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HC14AP,TC74HC14AF,TC74HC14AFN Hex Schmitt Inverter The TC74HC14A is a high speed CMOS SCHMITT INVERTER fabricated with silicon gate C2MOS technology. It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. Pin configur |
 Toshiba 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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