Photorelays with 5A drive current for replacing mechanical relays

Posted By : Anna Flockett
Photorelays with 5A drive current for replacing mechanical relays

Three compact DIP8 package products have been added by Toshiba Electronics Europe, to its line-up of photorelays that can replace mechanical relays in industrial applications. The devices - which include an industry-leading 5A large drive current  – will suit a variety of applications ranging from HVAC systems to inverters, PLCs and Automated Test Equipment (ATE).

Unlike mechanical relays, photorelays have no physical contacts that are subject to wear and deterioration. This contributes to greater reliability. Use of photorelays also helps support the development of smaller and thinner designs. A guaranteed pulsed ON-state current that is three times greater than that of the continuous ON-state current secures a margin for safety design.

Toshiba’s TLP3547 is a 60V product with an industry-leading 5A (max) large drive current. The TLP3548 is a 400V product with a 0.4A (max) drive current that offers high-speed switching of 1ms (max). The 600V TLP3549 is the industry’s first photorelay to utilise a super-junction structure ‘DTMOS’ MOSFET and delivers a 0.6A (max) drive current.

All the photorelays have a minimum isolation voltage rating of 2500Vrms.

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