This is one of the types of MOSFETs and is a kind of transistor.
Part Number: K12A60D, TK12A60D
Function: 600V, 12A, N-Channel MOSFET
Package: TO-220 Type
This is 600V, 12A, Silicon N Channel MOS Type Field Effect Transistor.
1. Low drain-source ON resistance: RDS (ON)= 0.45 Ω(typ.)
2. High forward transfer admittance: ⎪Yfs⎪= 7.5 S (typ.)
3. Low leakage current: IDSS= 10 μA (max) (VDS= 600 V)
4. Enhancement-mode: Vth= 2.0 to 4.0 V (VDS= 10 V, ID= 1 mA)
1. Switching Regulator