K3561 PDF – 500V, 8A, N-Ch, MOSFET ( 2SK3561, Transistor )

Full Part Number is 2SK3561.

The Function is N-Ch, 500V, 8A, MOSFET ( Transistor )

The package is TO-220 type.

The manufacturer of the product is Toshiba Semiconductor.

See the preview image and the PDF file for more information.


K3561 transistor



The K3561 is a N-channel MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) manufactured by Toshiba. MOSFETs are used as electronic switches and voltage-controlled resistors in a variety of applications, including power supplies, motor drives, and switching power amplifiers.

The 2SK3561 is designed for high-power, high-frequency switching applications, where its fast switching speed and low on-resistance make it well-suited for high-efficiency power conversion systems.


1. Low drain-source ON resistance: RDS (ON)= 0.75 Ω(typ.)

2. High forward transfer admittance: | Yfs | = 6.5 S (typ.)

3. Low leakage current: IDSS= 100 μA (VDS= 500 V)

4. Enhancement mode: Vth= 2.0 to 4.0 V (VDS= 10 V, ID= 1 mA)

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K3561 datasheet image


Absolute Maximum Ratings ( Ta = 25°C )

1. Drain-source voltage: VDSS = 500 V

2. Drain-gate voltage (RGS = 20 kΩ): VDGR = 500 V

3. Gate-source voltage: VGSS = ±30 V

4. Drain current (DC): Id = 8A

5. Drain power dissipation (Tc = 25°C): PD = 40 W


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1. Switching Regulator  ( Id = 8A, Idp = 32A )

K3561 PDF Datasheet


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