This is one of the types of MOSFETs and is a kind of transistor.
Part Number: K7A65D
Function: Silicon N-Channel MOSFET Type MOSFET ( Vdss=650V, Pd = 45W )
Package: TO-220 Type
Manufacturer: Toshiba
Image :
( Marking Number : TK7A65D -> K7A65D )
Description
Switching Regulator Applications
1. Low drain-source ON-resistance: RDS (ON)= 0.8 Ω(typ.)
2. High forward transfer admittance: |Yfs| = 4.5 S (typ.)
3. Low leakage current: IDSS= 10 μA (max) (VDS= 650 V)
4. Enhancement mode: Vth= 2.0 to 4.0 V (VDS= 10 V, ID= 1 mA)
Pinout
Absolute Maximum Ratings
1. Drain-source voltage: VDSS = 650 V
2. Gate-source voltage: VGSS = ±30 V
3. Drain current : Id = 7 A
4. Drain power dissipation : Pd = 45 W
K7A65D Datasheet PDF
Other data sheets are available within the file: TK7A65D, TK7A650