Photorelays from Toshiba are in DIP4 package

Two high current photorelays introduced by Toshiba are fabricated using the latest U-MOS IX semiconductor process.

The TLP3553A and TLP3555A devices feature off-state output terminal voltage ratings of 30 and 60V, and on-state continuous current ratings of 4.0 and 3.0A – higher than previous generation products. When operated in pulsed mode, the current ratings increase to 9.0A for both devices.

The photorelays are used in industrial equipment, for example, PLCs, I/O interface and sensor controls, building automation systems such as heating, ventilation and air conditioning (HVAC), security equipment and the replacement of mechanical relays in legacy systems.

The TLP3553A features a low on-state resistance of just 50 mOhmm (maximum) which is less than a typical mechanical relay (about 100 mOhm). This ensures that operating losses are kept to a minimum when the device is used to replace mechanical relays such as 1-Form-A that are commonly used in industrial applications. The photorelays are rated for operation at temperatures between -40 and +110 degrees, making it easy to achieve a thermal margin in designs.

Toshiba reports that when mechanical relays are replaced with photorelays, such as the TLP355xA devices, system reliability is immediately improved. The photorelays are physically smaller than a mechanical relay, and no additional driver is required, saving both space and weight. Both TLP3553A and TLP3555A are provided in a DIP4 package and both with and without a surface mount option.

Both devices are now shipping in production quantities.

This news story is brought to you by softei.com, the specialist site dedicated to delivering information about what’s new in the electronics industry, with daily news updates, new products and industry news.

To stay up-to-date, register to receive our weekly newsletters and keep informed of the latest technology news and new products from around the globe. Simply click this link to register here:  softei.com

http://toshiba.semicon-storage.com