This part is a kind of semiconductor called VIPER12ADIP.

Function of this product has LOW POWER OFF LINE SMPS PRIMARY SWITCHER.

Manufacturers : STMicroelectronics

Image and pinout :

Some of the text within the PDF file :

® VIPer12ADIP VIPer12AS LOW POWER OFF LINE SMPS PRIMARY SWITCHER TYPICAL POWER CAPABILITY Mains type European (195 - 265 Vac) US / Wide range (85 - 265 Vac) SO-8 8W 5W DIP8 13 W 8W SO-8 DIP-8 ORDER CODES PACKAGE n n n n FIXED 60 KHZ SWITCHING FREQUENCY 9V TO 38V WIDE RANGE VDD VOLTAGE CURRENT MODE CONTROL AUXILIARY UNDERVOLTAGE LOCKOUT WITH HYSTERESIS SOURCE SO-8 DIP-8 TUBE T&R VIPer12AS VIPer12AS13TR VIPer12ADIP n HIGH VOLTAGE START UP CURRENT n OVERTEMPERATURE, OVERCURRENT AND OVERVOLTAGE PROTECTION WITH AUTORESTART DESCRIPTION The VIPer12A combines a dedicated current mode PWM controller with a high voltage Power BLOCK DIAGRAM MOSFET on the same silicon chip. Typical applications cover off line power supplies for battery charger adapters, standby power supplies for TV or monit [ ... ]

VIPER12ADIP PDF Datasheet Download