---
title: "東芝發佈適用於高温設備操作的 135°C 額定小型光繼電器"
type: "News"
locale: "zh-HK"
url: "https://longbridge.com/zh-HK/news/276816463.md"
description: "東芝電子設備與存儲公司推出了四款新型電壓驅動光繼電器，分別為 TLP3407SRB、TLP3412SRB、TLP3412SRHB 和 TLP3412SRLB，最高工作温度評級為 135°C。這些光繼電器專為汽車半導體測試儀和老化設備中的高温應用而設計，採用緊湊的 S-VSON4T 封裝，省去了外部電阻的需求。大規模出貨已開始，以支持汽車電子中對可靠高温操作日益增長的需求"
datetime: "2026-02-25T02:00:00.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/276816463.md)
  - [en](https://longbridge.com/en/news/276816463.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/276816463.md)
---

# 東芝發佈適用於高温設備操作的 135°C 額定小型光繼電器

KAWASAKI, Japan--(BUSINESS WIRE)-- 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/

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, Ta\=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 Topr (°C)

\-40 to 135

OFF-state output terminal voltage VOFF (V)

60

60

60

60

ON-state current ION (A)

1

0.4

0.4

0.4

ON-state current (pulsed) IONP (A)

3

1.2

1.2

1.2

Recommended  
operating  
conditions

Applied input forward voltage VIN (V)

Typ.

3.3

3.3

5

1.8

Max

6

6

5.5

3.3

Coupled electrical  
characteristics

Limited LED current ILIM(LED) (mA)

VIN\=5.5V,  
Ta\=135°C

Max

\-

\-

2

\-

VIN\=3.3V,  
Ta\=135°C

Max

1

2

\-

\-

VIN\=1.8V,  
Ta\=135°C

Max

\-

\-

\-

10

Operating voltage VFON (V)

ION\=100mA

Max

3

3

3.9

1.6

ON-state resistance RON (Ω)

Max

0.3

1.5

1.5

1.5

Electrical  
characteristics

Output capacitance COFF (pF)

V=0V,  
f=1MHz,  
t<1s

Max

150

20

20

20

OFF-state current IOFF (nA)

VOFF\=50V

Max

1

1

1

1

Switching  
characteristics

Turn-on time tON (ms)

RL\=200Ω,  
VDD\=20V,  
VIN\=5.0V

Max

\-

\-

1.5

\-

RL\=200Ω,  
VDD\=20V,  
VIN\=3.3V

Max

10

1

\-

0.1

RL\=200Ω,  
VDD\=20V,  
VIN\=1.8V

Max

\-

\-

\-

0.3

Turn-off time tOFF (ms)

RL\=200Ω,  
VDD\=20V,  
VIN\=5.0V

Max

\-

\-

0.5

\-

RL\=200Ω,  
VDD\=20V,  
VIN\=3.3V

Max

1

0.5

\-

0.225

RL\=200Ω,  
VDD\=20V,  
VIN\=1.8V

Max

\-

\-

\-

0.15

Isolation  
characteristics

Isolation voltage BVS (Vrms)

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/

Source: Toshiba Electronic Devices & Storage Corporation

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