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Toshiba, Launches

Toshiba Launches New Family of Low Voltage Driven Photorelays

11.06.2019 - 11:36:49

Toshiba Launches New Family of Low Voltage Driven Photorelays. --Photorelays in tiny packages enable high-density assembly in test equipment applications--

(“Toshiba”), the industry leader in the miniaturization of cutting-edge photorelays, has introduced a family of five new photorelays housed in the industry’s smallest[1] package, the S-VSONR4 (2.0mm x 1.45mm). The new devices are suited for use in automatic test equipment, memory testers, SoC/LSI testers and probe cards. Shipments have already started.


This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20190610005013/en/

Toshiba: TLP34xxSRL series and TLP34xxSRH series, housed in the industry's smallest package S-VSONR4 ...

Toshiba: TLP34xxSRL series and TLP34xxSRH series, housed in the industry's smallest package S-VSONR4. (Photo: Business Wire)

Both the TLP34xxSRL series (two devices) and TLP34xxSRH series (three devices) have input voltage driven characteristics. TLP3406SRL and TLP3407SRL support a DC voltage range of 1.8V (typ.) to 3.3V (typ.), while TLP3406SRH, TLP3407SRH and TLP3412SRH support a DC voltage range of 3.3V (typ.) to 5V (typ.), characteristics that enhance compatibility with today’s low voltage FPGAs.


The new photorelays are housed in tiny S-VSONR4 packages and require a mounting space of 2.9mm2, a footprint approximately 27% smaller than Toshiba’s previous generation package, the VSONR4 (2.75mm x 1.45mm). In addition, they all have a built-in input resistor, eliminating the need for an external input resistor, saving space. The tiny packaging and its space requirements will allow engineers to design smaller test boards, especially probe cards. It also allows increases in the number of photorelays on a board to achieve a higher density solution.


Despite their tiny package size, the new photorelays can drive large currents: up to 1.5A for the TLP3406SRx with an offstage voltage VOFF of 30V and an ON-state resistance Ron of 0.2? (max); and up to 1A for TLP3407SRx with a VOFF of 60V and Ron of 0.3?. TLP3412SRH can drive up to 0.4A (VOFF = 60V / Ron = 1.5?). This makes them highly suited to device power supply applications across a range of test equipment. All of the new devices have a guaranteed operating temperature range to 110 ? (max).



  • The smallest package of any voltage input control photorelay: mount space 2.9mm2 (typ.) (as of June 4, 2019)
  • Two input voltages adopted for the control signal: DC 1.8V (typ.) and DC 3.3V (typ.)
  • VOFF supports 30V/60V, ION supports 0.4A to 1.5A.


  • Automatic test equipment (ATE), memory testers, SoC and LSI testers and probe cards

Main Specifications


Part number   TLP3406SRH   TLP3406SRL   TLP3407SRH   TLP3407SRL   TLP3412SRH
DC system voltage VCC typ. (V)   3.3/5   1.8   3.3/5   1.8   3.3/5
Package   S-VSONR4




  OFF-state output terminal voltage VOFF (V)   30   30   60   60   60
  ON-state current ION (A)   1.5   1.5   1.0   1.0   0.4
  ON-state current (pulsed) IONP (A)   4.5   4.5   3.0   3.0   1.2


  Operating voltage VFON max (V)   3   1.8   3   1.6   3
  ON-state resistance RON max (?)   0.2   0.2   0.3   0.3   1.5
  Output capacitance COFF typ. (pF)   120   80   120   80   20
  OFF-state current IOFF max (nA)














  Turn-on time tON max (ms)   2   2   2   2   0.5
  Turn-off time tOFF max (ms)   1   1   1   1   0.5


  Isolation voltage BVS min (Vrms)   500   500   500   500   500
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[1] Mount space 2.9mm2. For photorelay products; Toshiba survey, as of June 4, 2019.


Follow the link below for more on Toshiba’s photorelay lineup.


To check availability of the new products at online distributors, please visit:


* Company names, product names, and service names may be trademarks of their respective companies.


Customer Inquiries:
Optoelectronic Device Sales & Marketing Dept.
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 Electronic Devices & Storage Corporation


Toshiba Electronic Devices & Storage Corporation combines the vigor of a new company with the wisdom of experience. Since becoming an independent company in July 2017, we have taken our place among the leading general devices companies, and offer our customers and business partners outstanding solutions in discrete semiconductors, system LSIs and HDD.


Our 22,000 employees around the world share a determination to maximize the value of our products, and emphasize close collaboration with customers to promote co-creation of value and new markets. We look forward to building on annual sales now surpassing 800-billion yen (US$7 billion) and to contributing to a better future for people everywhere.
Find out more about us at https://toshiba.semicon-storage.com/ap-en/top.html




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