| No | Part number | Description ( Function ) | Manufacturers | |
| 4 | T6420D | 40 AMP SILICON TRIACS DIGITRON SEMICONDUCTORS 2N5441-2N5446, T6420 SERIES 40 AMP SILICON TRIACS Available Non-RoHS (standard) or RoHS compliant (add PBF suffix). Available as “HR” (high reliability) screened per MIL-PRF-19500, JANTX level. Add “HR” suffix to base part number. MAXIMUM RATINGS (Sinusoidal supply voltage at frequency 50/60Hz and with resistive or inductive load) Rating Sy |
 Digitron Semiconductors |
|
| 3 | T6420D | Thyristor TRIAC 600V 300A |
 New Jersey Semiconductor |
|
| 2 | T6420D | Thyristor TRIAC 600V 300A |
New Jersey Semiconductor |
|
| 1 | T6420D | 40A Silicon Triacs |
 GE |
|
[1]
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 |
|||