High-current photorelays achieve UL 508 certification

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By eeNews Europe

All of the nine devices in the series include low on-state resistance MOSFETs based upon Toshiba’s U-MOS VIII process that ensure high performance in a wide range of applications. The UL 508 and UL1577 approvals allow designers to easily meet the UL safety requirements for control equipment, including the thermal design margin, thereby easing the sale of such equipment on a global basis. The devices can be used for relay replacement in DC systems to 125V and AC systems to 400V, replacing 1-Form-A and other mechanical relays. The series comprises a total of nine devices housed in DIP packages with 4, 6 or 8 pins (DIP4, DIP6 or DIP8). All packages have a surface mount option available, including wide-body versions. Devices are able to operate across the industrial temperature range of -40°C to +85°C ambient, while the case temperature can safely rise to 105°C. The photorelays can handle OFF-state output terminal voltages (VOFF) as high as 600V. They offer ON-state resistances (RON) as low as 22mOhm and can handle continuous currents (ION) up to 5A. The pulsed current (IONP) is three times this level, thereby contributing to design safety.

Toshiba Electronics –


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