| No | Part number | Description ( Function ) | Manufacturers | |
| 2 | VIPER53EDIP | STATE OF THE ART PRIMARY SIDE SWITCH FOR AC/DC CONVERTERS VIPER53EDIP VIPER53ESP OFF LINE PRIMARY SWITCH PRELIMINARY DATA Table 1. TYPICAL OUTPUT POWER CAPABILITY TYPE VIPer53EDIP VIPer53ESP Note Figure 1. Package European (195 - 265 Vac) 50W 65W US / Wide range (85 - 265 Vac) 30W 40W : Above power capabilities are given under adequate thermal conditions 10 s s SWITCHING FREQUENCY UP TO 300 KHZ CURRENT MODE CONTROL WITH ADJUSTA |
 STMicroelectronics |
|
| 1 | VIPER53EDIP-E | OFF-line Primary Switch VIPer53EDIP - E VIPer53ESP - E OFF-line Primary Switch Features ■ Switching frequency up to 300kHz ■ Current mode control with adjustable limitation ■ Soft start and shut-down control ■ Automatic burst mode in standby condition (“Blue Angel“ compliant ) ■ Undervoltage lockout with Hysteresis ■ Integrated start-up current source ■ Over-temperature protection |
STMicroelectronics |
|
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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