This part is a kind of semiconductor called OPA512.

Function of this product has Very-High Current.High Power OPERATIONAL AMPLIFIER.

Manufacturers : Burr-Brown

Image and pinout :

Some of the text within the PDF file :

® OPA512 Very-High CurrentHigh Power OPERATIONAL AMPLIFIER FEATURES q WIDE SUPPLY RANGE: ±10V to ±50V q HIGH OUTPUT CURRENT: 15A Peak q CLASS A/B OUTPUT STAGE: Low Distortion q VOLTAGE-CURRENT LIMIT PROTECTION CIRCUIT q SMALL TO-3 PACKAGE APPLICATIONS q q q q q SERVO AMPLIFIER MOTOR DRIVER SYNCRO EXCITATION AUDIO AMPLIFIER TEST PIN DRIVER DESCRIPTION The OPA512 is a high voltage, very-high current operational amplifier designed to drive a wide variety of resistive and reactive loads. Its complementary class A/B output stage provides superior performance in applications requiring freedom from cross-over distortion. User-set current limit circuitry provides protection to the amplifier and load in fault conditions. A resistor-programmable voltage-current limiter circuit may be used [ ... ]

OPA512 PDF Datasheet Download