| No | Part number | Description ( Function ) | Manufacturers | |
| 3 | M272 | Relay M272 1 Form B Solid State Relay DESCRIPTION The M272 is a bi-directional, single-pole, single-throw, normally closed multipurpose solid-state relay in a miniature 4-pin small outline package. It is designed to be a cost-effective replacement of reed relays in low voltage applications. The relay consists of an integrated circuit that drives two rugged source-to-source depletio |
 Solid State Optronics |
|
| 2 | M27256 | NMOS 256K 32K x 8 UV EPROM M27256 NMOS 256K (32K x 8) UV EPROM FAST ACCESS TIME: 170ns EXTENDED TEMPERATURE RANGE SINGLE 5V SUPPLY VOLTAGE LOW STANDBY CURRENT: 40mA max TTL COMPATIBLE DURING READ and PROGRAM FAST PROGRAMMING ALGORITHM ELECTRONIC SIGNATURE PROGRAMMING VOLTAGE: 12V 28 1 FDIP28W (F) DESCRIPTION The M27256 is a 262,144 bit UV erasable and electrically programmable memory EPROM. It is orga |
 STMicroelectronics |
|
| 1 | M27256 | 256K(32K x 8) UV ERASABLE PROM |
 Intel Corporation |
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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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