Toshiba Releases Small Photorelays with 135°C Rating for High-Temperature Equipment Operation

News > Business News

Audio By Carbonatix

6:00 PM on Tuesday, February 24

The Associated Press

KAWASAKI, Japan--(BUSINESS WIRE)--Feb 24, 2026--

Toshiba Electronic Devices & Storage Corporation ("Toshiba") has launched four voltage-driven photorelays, “ TLP3407SRB,” “ TLP3412SRB,“ ” TLP3412SRHB,“ and “ TLP3412SRLB ” housed in the small S-VSON4T package. The new photorelays deliver a maximum operating temperature rating of 135°C for equipment that operates at high temperatures. Volume shipments start today.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260224680610/en/

Toshiba: small photorelays with 135°C rating for high-temperature equipment operation.

Advances in electrification and autonomous driving now require high-density packaging of electronic components in automotive equipment. This has raised the temperatures at which automotive semiconductors operate, and testing under similar conditions is necessary to evaluate reliability; testers, burn-in equipment, probe cards, and other devices for automotive semiconductors must be able to operate at high temperatures, as must the photorelays used in them.

The maximum operating temperature of Toshiba’s new products have been pushed from the 125°C of current products [1] to 135°C by optimizing the design of built-in elements. In addition, because they are voltage-driven type photorelays with built-in resistors on the input side, no external resistor is required, reducing space requirements on mounting boards. They are also housed in a small package, the S-VSON4T, which is 1.45 × 2.0 mm (typ.).

The combination of these factors makes the new photorelays suitable for application in automotive semiconductor testers, probe cards, and burn-in equipment, where multiple photorelays need to be mounted within a limited board space, and reliable high-temperature operation is required.

Toshiba will continue to offer a lineup of products that support high-temperature operation in equipment.

Note:
[1] TLP3407SRA, TLP3412SRA, TLP3412SRHA and TLP3412SRLA

Applications

Semiconductor testers used to evaluate memories, SoC, LSI, etc.
Probe cards
Burn-in equipment

Features

Operating temperature rating: 135°C
Small package: S-VSON4T (1.45mm×2.0mm (typ.))

Main Specifications

(Unless otherwise specified, T a =25°C)
	TLP3407SRB	TLP3412SRB	TLP3412SRHB	TLP3412SRLB
Package	Name	S-VSON4T
Size (mm)	1.45×2.0 (typ.), t=1.4 (max)
Contact	1-Form-A (Normally opened)
Absolute maximum ratings	Operating temperature T opr (°C)	-40 to 135
OFF-state output terminal voltage V OFF (V)	60	60	60	60
ON-state current I ON (A)	1	0.4	0.4	0.4
ON-state current (pulsed) I ONP (A)	3	1.2	1.2	1.2
Recommended operating conditions	Applied input forward voltage V IN (V)	Typ.	3.3	3.3	5	1.8
Max	6	6	5.5	3.3
Coupled electrical characteristics	Limited LED current I LIM(LED) (mA)	V IN =5.5V, T a =135°C	Max	-	-	2	-
V IN =3.3V, T a =135°C	Max	1	2	-	-
V IN =1.8V, T a =135°C	Max	-	-	-	10
Operating voltage V FON (V)	I ON =100mA	Max	3	3	3.9	1.6
ON-state resistance R ON (Ω)	Max	0.3	1.5	1.5	1.5
Electrical characteristics	Output capacitance C OFF (pF)	V=0V, f=1MHz, t<1s	Max	150	20	20	20
OFF-state current I OFF (nA)	V OFF =50V	Max	1	1	1	1
Switching characteristics	Turn-on time t ON (ms)	R L =200Ω, V DD =20V, V IN =5.0V	Max	-	-	1.5	-
R L =200Ω, V DD =20V, V IN =3.3V	Max	10	1	-	0.1
R L =200Ω, V DD =20V, V IN =1.8V	Max	-	-	-	0.3
Turn-off time t OFF (ms)	R L =200Ω, V DD =20V, V IN =5.0V	Max	-	-	0.5	-
R L =200Ω, V DD =20V, V IN =3.3V	Max	1	0.5	-	0.225
R L =200Ω, V DD =20V, V IN =1.8V	Max	-	-	-	0.15
Isolation characteristics	Isolation voltage BV S (V rms )	AC, 60s	Min	500	500	500	500
Sample check & availability	Buy Online	Buy Online	Buy Online	Buy Online

Related Information

Technical Articles
Small photorelay with high-speed switching
Compact photorelays with low voltage drive and high temperature operation rating

Follow the links below for more on the new products.
TLP3407SRB
TLP3412SRB
TLP3412SRHB
TLP3412SRLB

Follow the link below for more on Toshiba’s isolators and solid state relays.
Isolators/Solid State Relays

To check availability of the new products at online distributors, visit:
TLP3407SRB
Buy Online
TLP3412SRB
Buy Online
TLP3412SRHB
Buy Online
TLP3412SRLB
Buy Online

* Company names, product names, and service names may be trademarks of their respective companies.
* 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, a leading supplier of advanced semiconductor and storage solutions, draws on over half a century of experience and innovation to offer customers and business partners outstanding discrete semiconductors, system LSIs and HDD products.

Its 17,000 employees around the world share a determination to maximize product value, and to promote close collaboration with customers in the co-creation of value and new markets. The company looks forward to building and to contributing to a better future for people everywhere.

Find out more at https://toshiba.semicon-storage.com/ap-en/top.html

View source version on businesswire.com:https://www.businesswire.com/news/home/20260224680610/en/

CONTACT: Customer Inquiries

Optoelectronic Device Sales & Marketing Dept.

Tel: +81-44-548-2218

Contact UsMedia Inquiries:

C. Nagasawa

Communications & Market Intelligence Dept.

Toshiba Electronic Devices & Storage Corporation

[email protected]

KEYWORD: JAPAN NORTH AMERICA ASIA PACIFIC

INDUSTRY KEYWORD: SEMICONDUCTOR AUTOMOTIVE AUTOMOTIVE MANUFACTURING TECHNOLOGY MANUFACTURING AUTONOMOUS DRIVING/VEHICLES HARDWARE