2SK3561

Product Overview

2SK3561 is a silicon N-channel MOSFET from Toshiba, designed for switching regulator applications. The device is supplied in a TO-220SIS through-hole power package and features low drain-source on-resistance, high forward transfer admittance and low leakage current. With a 500V drain-source voltage rating, 8A drain current and 40W power dissipation class, it is suitable for switching power supplies, DC-DC converter circuits, industrial control boards and maintenance or replacement projects that require reliable high-voltage MOSFET switching performance.

Key Features

• Manufacturer: Toshiba

• Part Number: 2SK3561

• Device Type: Silicon N-channel MOSFET

• Product Category: Discrete semiconductor / power MOSFET

• Package: TO-220SIS through-hole power package

• Polarity: N-channel

• MOSFET Technology: π-MOSVI

• Drain-Source Voltage: 500V

• Drain Current: 8A

• Pulsed Drain Current: 32A class

• Gate-Source Voltage: ±30V maximum class

• Power Dissipation: 40W

• On-Resistance: 0.75Ω typical / 0.85Ω maximum class

• Gate Threshold Voltage: 2.0V to 4.0V class

• Typical Use: Switching regulators, switching power supplies, DC-DC converters and high-voltage power switching circuits

• Ordering / Packaging Note: 2SK3561 may be supplied as Toshiba old-stock or replacement material; buyers should verify the original brand, package marking, pin configuration, datasheet version and thermal design requirements before production use.

Applications

2SK3561 can be used in electronic circuits that require high-voltage N-channel MOSFET switching performance. Typical applications include switching regulator circuits, AC/DC switching power supplies, DC-DC converter stages, industrial control equipment, power management modules, inverter auxiliary power stages, communication equipment power supplies, maintenance projects and repair applications. It is also suitable for BOM review where a 500V / 8A N-channel MOSFET in a TO-220SIS package is required.

Quality & Sourcing

Antrex Electronics can support 2SK3561 sourcing with stock availability checks, RFQ quotation, package confirmation, date code review and shipment arrangement. For project-based purchasing, buyers can provide quantity, target price, required date code, packaging requirements and application information for faster quotation support.

For quality control, Antrex Electronics can help arrange product photos, label review, visual inspection and third-party testing support when required. OEMs, EMS providers, repair centers and electronic component buyers are welcome to send BOM lists or hard-to-find part requests for sourcing assistance.