Photorelays provides on/off control for high-current applications.

Press Release Summary:

Available in TLP172AM and TLP172GM models, Photorelays are housed in 4-pin SO6 package. Featuring isolation voltage of up to 3750Vrms and 3mA (max) trigger current, units are used as function switches in measuring equipment, sensor switches in security systems and power monitoring function in battery management systems. Operating in -40 to 110°C, units offer maximum switching time of one msec.

Original Press Release:

Toshiba Introduces Compact Photorelays with Improved Isolation Voltage of 3.75kV

4-pin SO6 Packages Capable of Withstanding Operating Temperatures of up to 110°C

Toshiba America Electronic Components, Inc. (TAEC) today announced that it has expanded its extensive portfolio of photorelays with the addition of two 4-pin SO6 package products. The new TLP172AM and TLP172GM operate at temperatures up to 110°C, feature an isolation voltage of up to 3750Vrms and have a 3mA (max) trigger current. This makes them suitable for use as function switches in measuring equipment, sensor switches in security systems, power monitoring function in battery management systems, IoT equipment and more.

The new photorelays are halogen-free and are made with a double mold structure. The TLP172AM and TLP172GM utilize multi-chip technology and were developed as high spec, pin-compatible versions of Toshiba's existing 2.54SOP package products (TLP172A, TLP172G). The new devices satisfy designers' requirements for thin packages that comply with high levels of safety standards.

Offering on/off control for high-current applications, the TLP172AM features a higher current output rating than phototransistor photocouplers. The TLP172GM can be used in space-constrained battery management systems.


Main Specifications

Product Name                                         Existing Products                                                 New Products                                                                                               TLP172A                   TLP172G                               TLP172AM          TLP172GM

Contact                                                                                         1 Form A                                                        

Package                                                          2.54SOP4                                                       4-pin SO6

TOPR                                                -40 to 85 degrees Celsius                                  -40 to 110 degrees Celsius

IFT (max)                                                                                        3mA                                                            

VOFF (min)                                       60V                      350V                                           60V                  350V

RON (max)                                         2Ω                       50Ω                                            2Ω                    50Ω

ION(max)                                            0.4A                    0.11A                                         0.5A                  0.11A

Pulsed ION(max)                                1.2A                     0.33A                                         1.5A                  0.33A

BVs(min)                                                      1500Vrms                                                                3750Vrms

tON(max)                                             2ms                    1ms                                              2ms              1ms

tOFF(max)                                           0.5ms                  1ms                                             0.5ms            0.5ms

Pricing and Availability

The new photorelays are available now. For more details, samples and pricing information, please contact your local Toshiba Sales Office.

About TAEC

Through proven commitment, lasting relationships and advanced, reliable electronic components, Toshiba enables its customers to create market-leading designs. Toshiba is the heartbeat within product breakthroughs from OEMs, ODMs, CMs, VARs, distributors and fabless chip companies worldwide. A committed electronic components leader, Toshiba designs and manufactures high-quality flash memory-based storage solutions, solid state drives (SSDs), hard disk drives (HDDs), solid state hybrid drives (SSHDs), discrete devices, custom SoCs/ASICs, imaging products, microcontrollers, wireless components, mobile peripheral devices, and advanced materials that make possible today's leading smartphones, tablets, cameras, medical devices, automotive electronics, industrial applications, enterprise solutions and more.

Toshiba America Electronic Components, Inc. is an independent operating company owned by Toshiba America, Inc., a subsidiary of Toshiba Corporation, Japan's largest semiconductor, solid state drive and hard disk drive manufacturer and the world's seventh largest semiconductor manufacturer (Gartner, 2015 Worldwide Semiconductor Revenue, January, 2016). Founded in Tokyo in 1875, Toshiba is at the heart of a global network of over 550 consolidated companies employing over 188,000 people worldwide (as of March 31, 2016). Visit Toshiba's web site at


Rebecca Bueno

Toshiba America Electronic Components, Inc.

Tel.: (949) 462-7885



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