Mfr Part #:

2SK4021

Mfr Name: Toshiba

The Toshiba 2SK4021 is an N-Channel Power MOSFET designed for switching applications. It features a breakdown voltage of 250V and a maximum drain current of 4.5A.

✓ Total Stock: 4,000 pcs

$ Price Range: $0.99

2SK4021 Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Fe Components ✓ Non-Authorised Inventory information	4,000 pcs On Request	4000 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

2SK4021 Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Toshiba

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2SK4021 Description

Short technical summary and product information.

The Toshiba 2SK4021 is a general-purpose power MOSFET with an N-channel configuration and a built-in diode. It is designed for switching applications and operates in enhancement mode.

Key electrical specifications include a minimum breakdown voltage of 250V and a maximum continuous drain current of 4.5A. The drain-source on-resistance is a maximum of 1 ohm, and the pulsed drain current can reach up to 18A. It also has an avalanche energy rating of 51 mJ.

This MOSFET utilizes Metal-Oxide Semiconductor (MOS) FET technology and is housed in a 3-pin, in-line package suitable for through-hole mounting. The package body is made of plastic/epoxy and has a rectangular shape.

The component is lead-free and RoHS3 compliant, making it suitable for various electronic designs.

2SK4021 Quick Information

Product Type: Power MOSFET

Canonical Name: Toshiba 2SK4021 N-Channel Power MOSFET

Subcategory: Power MOSFET

2SK4021 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

Lead Free: Yes

2SK4021 Estimated Pricing

Qty	Low	High
1+	$0.99	$0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

2SK4021 Features

N-Channel Power MOSFET for switching.
250V minimum breakdown voltage.
4.5A maximum continuous drain current.
1 ohm maximum drain-source on-resistance.
Through-hole in-line package.

2SK4021 Applications

Used in power switching circuits
Suitable for high-voltage applications
Ideal for industrial power supplies
Applicable in motor control modules

2SK4021 FAQs

5 frequently asked questions generated from this part’s specifications.

What is the breakdown voltage of the 2SK4021?

The minimum breakdown voltage is 250 V.

What is the maximum continuous drain current for the 2SK4021?

The maximum continuous drain current is 4.5 A.

What is the maximum drain-source on-resistance?

The maximum drain-source on-resistance is 1 ohm.

What type of transistor is the 2SK4021?

It is a general-purpose power MOSFET with an N-channel configuration.

How is the 2SK4021 mounted?

The 2SK4021 is designed for through-hole mounting.