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Toshiba Electronic Devices & Storage Corporation Releases Small Active-Clamp MOSFET for Relay Drivers

News provided by Toshiba Electronic Devices & Storage Corporation
September 26, 2017 11:30 KST

TOKYO--(Business Wire / Korea Newswire) September 26, 2017 -- Toshiba Electronic Devices & Storage Corporation (TDSC) today announced the launch of “SSM3K357R,” a new MOSFET that adopts an active-clamp structure with a built-in diode between the drain and gate terminals. The device is suited to driving inductive loads, such as mechanical relays. Volume shipments start today.

The SSM3K357R protects drivers against damage from voltage surges, such as back-EMF caused by inductance. It integrates a pull-down resistor, series resistor and Zener diode, which helps reduce the part count and save on board space.

An industry-standard SOT-23-class package, a low operating voltage of 3.0V and AEC-Q101 qualification make the SSM3K357R suitable for automotive and many other applications.


Relay and solenoid control for automotive
Relay and solenoid control for industry
Clutch control for OA equipment


Active clamp structure suitable for driving an inductive load
Low operating voltage of 3.0 V
AEC-Q101 qualified

Main Specifications (To view the table, please visit

Follow the link below for more on TDSC’s latest small low-on-resistance MOSFETs.

Customer Inquiries:
Small Signal Device Sales & Marketing Department

*Information in this document, including product prices and specifications, content of services and contact information, is current on the date of the announcement but is subject to change without prior notice.

About Toshiba Electronic Devices & Storage Corporation

Toshiba Electronic Devices & Storage Corporation (TDSC) combines the vigor of a new company with the wisdom of experience. Since being spun off from Toshiba Corporation in July 2017, we have taken our place among the leading general devices companies, and offer our customers and business partners outstanding solutions in discrete semiconductors, system LSIs and HDD.

Our 19,000 employees around the world share a determination to maximize the value of our products, and emphasize close collaboration with customers to promote co-creation of value and new markets. We look forward to building on annual sales now surpassing 700-billion yen (US$6 billion) and to contributing to a better future for people everywhere.
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Toshiba Electronic Devices & Storage Corporation
Digital Marketing Department
Chiaki Nagasawa

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