This part is a kind of semiconductor called K2142.

Function of this product has N-Channel Silicon MOSFET.

Manufacturers : Sanyo

Image and pinout :

Some of the text within the PDF file :

Ordering number : EN5369A 2SK2142 SANYO Semiconductors DATA SHEET 2SK2142 Features • Low ON-resistance. • Ultrahigh-speed switcing. • Low-voltage drive. N-Channel Silicon MOSFET General-Purpose Switching Device Applications Specifications Absolute Maximum Ratings at Ta=25°C Parameter Drain-to-Source Voltage Gate-to-Source Voltage Drain Current Drain Current (Pulse) Allowable Power Dissipation Channel Temperature Storage Temperature Symbol VDSS VGSS ID IDP PD Tch Tstg Conditions PW≤10μs, duty cycle≤1% Tc=25°C Electrical Characteristics at Ta=25°C Parameter Drain-to-Source Breakdown Voltage Gate-to-Source Breakdown Voltage Zero-Gate Voltage Drain Current Gate-to-Source Leakage Current Cutoff Voltage Forward Transfer Admittance Static Drain-to-Source On-State Resistanc [ ... ]

K2142 PDF Datasheet Download