| No | Part number | Description ( Function ) | Manufacturers | |
| 2 | Q4004LT | Internally Triggered Triacs (4 A to 15 A) U. R L. O 1639 EC #E7 Fi le I GN ZE D TO-220 Isolated MT2 MT1 T Internally Triggered Triacs (4 A to 15 A) E3 General Description Teccor’s Quadrac devices are triacs that include a diac trigger mounted inside the same package. This device, developed by Teccor, saves the user the expense and assembly time of buying a discrete diac and assembling in conjunction with a |
 Teccor Electronics |
|
| 1 | Q4004LT | Internally Triggered Triacs U. R L. EC Fi O IZ GN 71 63 ED 9 le #E E3 TO-220 MT2 MT1 T Quadrac Internally Triggered Triacs (4 A to 15 A) E3 RoHS General Description Teccor’s Quadrac devices are triacs that include a diac trigger mounted inside the same package. This device, developed by Teccor, saves the user the expense and assembly time of buying a discrete diac an |
 Littelfuse |
|
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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