| No | Part number | Description ( Function ) | Manufacturers | |
| 2 | HV430WG | High Voltage Ring Generator Supertex inc. HV430 High-Voltage Ring Generator Features ► 105Vrms ring signal ► Output overcurrent protection ► 5.0V CMOS logic control ► Logic enable/disable to save power ► Adjustable deadband in single-control mode ► Power-on reset ► Fault output for problem detection Applications ► Line access cards ► Set-top/Street box The RESET input functions as a |
 Supertex Inc |
|
| 1 | HV430WG-G | High Voltage Ring Generator Supertex inc. HV430 High-Voltage Ring Generator Features ► 105Vrms ring signal ► Output overcurrent protection ► 5.0V CMOS logic control ► Logic enable/disable to save power ► Adjustable deadband in single-control mode ► Power-on reset ► Fault output for problem detection Applications ► Line access cards ► Set-top/Street box The RESET input functions as a |
 Supertex |
|
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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