Toshiba Expands Lineup of Photorelays in Industry's Smallest Package

Toshiba: Photorelays in Industry's Smallest VSON4 Package (Photo: Business Wire)

TOKYO--()--Toshiba Corporation (TOKYO:6502) today announced that it will expand its lineup of photorelays in the industry’s smallest[1] package with the addition of four products: “TLP3417”, “TLP3420”, “TLP3440” and “TLP3475.” Mass production shipment starts from today. The new products are suited for system solutions in various applications, including semiconductor testers, measurement equipment, probe cards and medical equipment.

The new products utilize the industry's smallest package for photocouplers, the Toshiba-developed VSON4[2] package. Compared to equivalent Toshiba products in a USOP4 package, the new photorelays reduce the assembly area by 50% and volume by 60%, which can contribute to enhancing high density assembly.

“TLP3440” has improved leakage characteristics against high frequency at off-state, while “TLP3475” has improved high speed signal transmission characteristics at on-state. Also, for high voltage measurement requirements including SoC testing,“TLP3417” supports 80V, while “TLP3420” supports 100V. The new products have the same electrical characteristics as the conventional Toshiba USOP4 series products; “TLP3317,” “TLP3320,” “TLP3340” and “TLP3375,” making it easier to evaluate them as replacement products.


Key Specifications of the New Products

Features   For High Frequency Systems   For High Voltage Systems
Product TLP3440   TLP3475 TLP3417   TLP3420
Package VSON4 Package

Area: 1.5mm × 2.5mm (max.), Height: 1.3mm (max.)

On-state Current 0.12A (max.) 0.3A (max.) 0.12A (max.) 0.08A (max.)
On-state Resistance 12Ω (typ.) 1Ω (typ.) 7.5Ω (typ.) 8Ω (typ.)
Off-state Voltage 40V (min.) 50V (min.) 80V (min.) 100V (min.)
Off-state Capacitance

(Photo Side)

0.45pF (typ.)

12pF (typ.) 5pF (typ.) 6pF (typ.)
Trigger LED Current 3mA (max.)
Isolation Voltage   300Vrms(min.)

[1] For photocoupler products, as of September 8, 2014. Toshiba survey.
[2] VSON: Very Small Outline Non-leaded.

Follow this link for more on Toshiba photocouplers and photorelays.

Customer Inquiries:
Optoelectronic Device Sales & Marketing Department
Tel: +81-3-3457-3431

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 Corporation, a Fortune Global 500 company, channels world-class capabilities in advanced electronic and electrical product and systems into five strategic business domains: Energy & Infrastructure, Community Solutions, Healthcare Systems & Services, Electronic Devices & Components, and Lifestyles Products & Services. Guided by the principles of The Basic Commitment of the Toshiba Group, “Committed to People, Committed to the Future”, Toshiba promotes global operations towards securing “Growth Through Creativity and Innovation”, and is contributing to the achievement of a world in which people everywhere live in safe, secure and comfortable society.

Founded in Tokyo in 1875, today’s Toshiba is at the heart of a global network of over 590 consolidated companies employing over 200,000 people worldwide, with annual sales surpassing 6.5 trillion yen (US$63 billion).
To find out more about Toshiba, visit


Media Inquiries:
Toshiba Corporation
Semiconductor & Storage Products Company
Koji Takahata, +81-3-3457-4963

Release Summary

Toshiba expanded its lineup of photorelays in the industry's smallest package with the addition of four products: "TLP3417", "TLP3420", "TLP3440" and "TLP3475."


Media Inquiries:
Toshiba Corporation
Semiconductor & Storage Products Company
Koji Takahata, +81-3-3457-4963