Integrated Phototriac Directly Controls Medium AC Loads In Home & Industry


Vishay has unveiled a new 1 A integrated power phototriac designed to directly drive medium AC loads such as home appliances and industrial equipment. Optimized for noisy environments, typical applications for the VO2223B include fan motor, valve, and pump control in air conditioners, refrigerators, water heaters, washing machines, and oven ranges, as well as smart home thermostats, intelligent light controllers, floor heating systems, and magnetic door controls.

Featuring high dv/dt to 600 V/μs, the device is ideal for noisy environments.

The device consists of an optically coupled phototriac driving an integrated power TRIAC in the compact DIP package. Design costs and board space are slashed since an external power TRIAC is not required.

Additionally, a high dv/dt enhances safety margins to eliminate requirements for expensive snubber networks.

The power phototriac features a high blocking voltage of 600 V to permit control of off-line voltages up to 240 VAC and is sufficient for as much as 380 VAC. For additional safety, the device offers an input-to-output isolation voltage of 5300 V. A low 10 mA maximum input trigger current facilitates an easy interface with digital logic.

Offering pure tin leads, the device is RoHS-compliant.

Samples and production quantities of the new VO2223B power phototriac are available now, with lead times of six weeks. Pricing for U.S. delivery only starts at $1.60 per piece.

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