This part is a kind of semiconductor called CMP100N03.
Function of this product has N-Ch 30V Fast Switching MOSFETs.
Manufacturers : Cmos
Image and pinout :

Some of the text within the PDF file :
CMP100N03/CMB100N03/CMI100N03 N-Ch 30V Fast Switching MOSFETs General Description The100N03 is N-ch MOSFETs with extreme high cell density , which provide excellent RDSON and gate charge for most of the synchronous buck converter applications. Features Simple Drive Requirement Fast Switching Low On-Resistance Product Summery BVDSS 30V RDSON < 4m ID 100A Applications HIGH CURRENT, HIGH SPEED SWITCHING DC-DC & DC-AC CONVERTERS MOTOR CONTROL, AUDIO AMPLIFIERS SOLENOID AND RELAY DRIVERS AUTOMOTIVE ENVIRONMENT TO220 / TO263 / TO262 Pin Configuration Absolute Maximum Ratings G DS TO-220 (CMP100N03) GD S TO-263 (CMB100N03) Symbol VDS VGS ID@TC=25 ID@TC=100 IDM EAS IAS PD TSTG TJ Parameter Drain-Source Voltage Gate-Sou ce Voltage Continuous Drain Current1 Continuous Drain Current1 Pulse [ ... ]
CMP100N03 PDF Datasheet Download
