This is one of the MOSFET types. This is a kind of the transistor.
Part Number : K8A60DA
Function : Silicon N Channel MOSFET Type
Package : TO-220 Type
Manufacturers : Toshiba
( Marking Number : TK8A60DA -> K8A60DA )
Description :
Switching Regulator Applications
1. Low drain-source ON resistance: RDS (ON)= 0.8 Ω(typ.)
2. High forward transfer admittance: ⎪Yfs⎪= 4.0 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)
Pinout
K8A60DA Datasheet PDF
Other data sheets within the file : TK8A60DA, TK8A600A