Photorelays have low trigger current for battery equipment

Photorelays have low trigger current for battery equipment
New Products |
Toshiba's TLP170AM and TLP170GM photorelays have a maximum trigger LED current of 1mA and increased sensitivity.
By Nick Flaherty


Toshiba Electronics Europe GmbH has launched two photorelays, housed in a small 4-pin SO6 package, for security systems, building automation and other industrial equipment.

The photorelays have a low trigger LED current of 1mA, which reduces input side power loss by increasing the sensitivity of the photodiode array. Using these photorelays for ON/OFF control in battery-powered security devices and various sensors, contributes to lower power consumption and longer operating life.

The TLP170AM has a rated off-state output terminal voltage (Voff) of 60V and on-state resistance (Ron) of 0.15Ω with a constant on-state current (Ion) of 0.7A and pulse operation of up to 2.1A. The TLP170GM is a 350V version with a typical Ron of 28Ω, Ion of 110mA constant current and 330mA pulse operation. Both devices have a rated operating temperature between -40°C and 85°C to allow for a temperature margin in system-level thermal design.

The 4-pin SO6 package enables a minimum isolation voltage of 3750Vrms, allowing the devices to be used in equipment requiring high insulation performance.

For more information on the photorelays, please visit

Related articles on photorelays 

Other articles on eeNews Europe

Linked Articles
eeNews Europe