PF156657 Serie
| Fr. Teil# | Beschreibung | Hersteller | Auf Lager | Operation |
| VIPER53SPTR-E | IC OFFLINE SW FLBACK 10POWERSO | STMicroelectronics | 9502 |
|
| VIPER53DIP-E | IC OFFLINE SWITCH FLYBACK 8DIP | STMicroelectronics | 8224 |
|
| VIPER53SP-E | IC OFFLINE SW FLBACK 10POWERSO | STMicroelectronics | 6532 |
|