Toshiba Releases Small Photorelays with 135°C Rating for High-Temperature Equipment Operation
Released on: Wednesday, 25 Feb 2026 10:14AM
Toshiba: small photorelays with 135°C rating for high-temperature equipment operation.
KAWASAKI, Japan, Feb 25 (Bernama-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.
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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
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