comment on this article

Toshiba launches ultra-small 4-Form-A voltage driven photorelays

Toshiba Electronics Europe has launched three new 4-Form-A voltage driven photorelays with one of the smallest mounting areas in the industry.

The devices are intended for a wide range of applications including measuring instruments such as oscilloscopes and data loggers as well as burn-in equipment. They are suitable for use in semiconductor test equipment (probe cards and test heads for memories, system-on-chip (SoC) and LSI) where there is a need to mount multiple relays on circuit boards with space constraints.

The products denoted TLP3407SRA4, TLP3412SRHA4 and TLP3475SRHA4 are Toshiba’s first-ever four-circuit, 4-Form-A relays. They are housed in a tiny, newly developed S-VSON16T package measuring 2.0mm x 6.25mm x 1.3mm and requiring a PCB mounting area of just 12.5mm2. The area is approximately 14% less compared with the mounting area of four 1-channel relays.

By incorporating input resistors, these products are able to be voltage driven without any need for external resistors in 3.3V or 5V systems. This further reduces space requirements on circuit boards, allowing more photorelays to be mounted.

All devices are supplied in normally open (1-Form-A / NO) configuration with an off-state voltage of 60V and offer 300Vrms (min.) of isolation. The TLP3412SRHA4 and TLP3475SRHA4 offer an ON-state current of 250mA with a typical ON-state resistance of just 1Ω while the corresponding figures for the TLP3407SRA4 are 600mA and 0.2Ω.

With typical turn-on and turn-off times of just 220µs (tON) and 50µs (tOFF), the TLP3412SRHA4 and TLP3475SRHA4 are suited to use in high-speed testers and other similar applications.

The operating temperature (Topr) range for all devices is -40ºC to +125ºC, allowing use in high temperature applications while ensuring thermal design margins are easily met or exceeded.

Neil Tyler

Comment on this article

This material is protected by MA Business copyright See Terms and Conditions. One-off usage is permitted but bulk copying is not. For multiple copies contact the sales team.

What you think about this article:

Add your comments


Your comments/feedback may be edited prior to publishing. Not all entries will be published.
Please view our Terms and Conditions before leaving a comment.

Related Articles

Smart construction

For an industry that accounts for 6% GDP worldwide, construction players have ...

Get to market faster

A quick look at using Vicor's PFM and AIM in VIA packaging for your AC to Point ...

Battery win-win

I know wearables are no new concept and we already have plenty of devices that ...

Tech trends

Last year was a busy one for technology and 2018 is unlikely to be any ...

Battery technology

The move to battery powered vehicles is gathering speed. The UK has joined ...

Improving cancer care

Mirada Medical’s imaging technology is helping to accelerate cancer care by ...

Building resilience

James Woodhead talks to New Electronics about the need to build greater ...