This part is a kind of semiconductor called BUZ20.

Function of this product has 12A/ 100V/ 0.200 Ohm/ N-Channel Power MOSFET.

Manufacturers : Intersil Corporation

Image and pinout :

Some of the text within the PDF file :

BUZ20 Semiconductor Data Sheet October 1998 File Number 2254.1 12A, 100V, 0.200 Ohm, N-Channel Power MOSFET Features • 12A, 100V [ /Title This is an N-Channel enhancement mode silicon gate power • rDS(ON) = 0.200Ω (BUZ20 field effect transistor designed for applications such as • SOA is Power Dissipation Limited ) switching regulators, switching converters, motor drivers, /Subject relay drivers and drivers for high power bipolar switching • Nanosecond Switching Speeds transistors requiring high speed and low gate drive power. (12A, • Linear Transfer Characteristics This type can be operated directly from integrated circuits. 100V, • High Input Impedance 0.200 Formerly developmental type TA17411. • Majority Carrier Device Ohm, N• Related Literature Channel Ordering [ ... ]

BUZ20 PDF Datasheet Download