Power switch supports low-loss SMPS design

Used for auxiliary switched-mode power supplies for single- and three-phase applications, the STC03DE220HV emitter-switched bipolar transistor (ESBT) power switch is rated for 2,200-V breakdown-voltage. It enables designers to use a single-switch flyback topology in universal-input converters operating from 90 to 690 Vac.

Operating at 150-kHz maximum switching frequency and 3-A maximum rated current, the transistor can be used in a wide range of auxiliary SMPS applications including industrial utility metering, inverter drives for induction motors, welding equipment, and uninterruptible power supplies. The device achieves an equivalent on-resistance of 0.33 Ω, from the collector to source, while operating at up to 150 kHz. ($3.50 ea/1,000 — available now.)

STMicroelectronics , Lexington , MA
Information 781-861-2650
http://www.st.com