Active clamp structure prevents overvoltage when inductive load is switched off

TOKYO — (BUSINESS WIRE) — June 21, 2013 — Toshiba Corporation (TOKYO: 6502) today announced that it has launched a MOSFET, "SSM3K337R", for relay drivers. The new device uses an active clamp structure that prevents overvoltage when the inductive load of relay devices is switched off. Sample is available and mass production is scheduled to start in September.
Demand for relay drivers is growing for automobile, since the number of electric components equipped by automobile is increasing.
The "SSM3K337R" reduces ON-resistance by half and improves allowable power dissipation to approximately 1.6 times that of equivalent products.

Key Features
1.		Active clamp structure reduces stress by inductive load of relay devices.
2.		ON-resistance is reduced by half.
3.		Allowable power dissipation is improved to approximately 1.6 times, with SOT-23F package.

Main Specifications

Package

Part Number

VDSS (V)

VGSS (V)

ID(DC) (A)

RDS(ON) typ. (mΩ)

Ciss (pF)

Qg @2A (nC)

VGS=4V

VGS=4.5V

VGS=10V

SOT-23F 2.9 x 2.8mm

SSM3K337R

38

±20

2

161

155

135

120

3.6

For more information about the product, please see the product page.
http://www.semicon.toshiba.co.jp/eng/product/new_products/transistor/1323380_37649.html

Customer Inquiries:
Small Signal Device Sales and Marketing Department
Tel: +81-3-3457-3411

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

Toshiba is a world-leading diversified manufacturer, solutions provider and marketer of advanced electronic and electrical products and systems. Toshiba Group brings innovation and imagination to a wide range of businesses: digital products, including LCD TVs, notebook PCs, retail solutions and MFPs; electronic devices, including semiconductors, storage products and materials; industrial and social infrastructure systems, including power generation systems, smart community solutions, medical systems and escalators & elevators; and home appliances.

Toshiba was founded in 1875, and today operates a global network of more than 550 consolidated companies, with 202,000 employees worldwide and annual sales surpassing 6.1 trillion yen (US$74 billion). Visit Toshiba's web site at www.toshiba.co.jp/index.htm

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Contact:

Media Inquiries:
Toshiba Corporation
Semiconductor & Storage Products Company
Takashi Mochizuki, +81-3-3457-4963
Email Contact