This part is a kind of semiconductor called B6NC60.

Function of this product has STB6NC60.

Manufacturers : STMicroelectronics

Image and pinout :

Some of the text within the PDF file :

N-CHANNEL 600V - 1Ω - 6A TO-220/TO-220FP/I2PAK PowerMESH™II MOSFET TYPE STP(B)6NC60(-1) STP6NC60FP s s s s s STP6NC60 - STP6NC60FP STB6NC60-1 VDSS 600 V 600 V RDS(on) < 1.2 Ω < 1.2 Ω ID 6A 6A 3 1 2 TYPICAL RDS(on) = 1.0 Ω EXTREMELY HIGH dv/dt CAPABILITY 100% AVALANCHE TESTED NEW HIGH VOLTAGE BENCHMARK GATE CHARGE MINIMIZED TO-220 TO-220FP DESCRIPTION The PowerMESH™II is the evolution of the first generation of MESH OVERLAY™. The layout refinements introduced greatly improve the Ron*area figure of merit while keeping the device at the leading edge for what concerns swithing speed, gate charge and ruggedness. APPLICATIONS HIGH CURRENT, HIGH SPEED SWITCHING s SWITH MODE POWER SUPPLIES (SMPS) s DC-AC CONVERTERS FOR WELDING EQUIPMENT AND UNINTERRUPTIBLE POWER SUPPLIES AND [ ... ]

B6NC60 PDF Datasheet Download