The STC03DE170HV is a high voltage transistor from ST company, which is manufactured in a hybrid structure. It has the characteristics of low on resistance, fast switching, high withstand voltage, and low CISS. It is suitable for three-phase auxiliary switch-mode power supplies.
The STCO3DE170HV is a hybrid emitter switched bipolar transistor (ESBT) designed for high‑voltage aux flyback SMPS applications in three‑phase systems. It combines high‑voltage bipolar and low‑voltage MOSFET technologies to achieve low on‑resistance, fast switching up to 150 kHz, and a high voltage rating.
The document provides absolute maximum ratings, thermal data, electrical characteristics, safe operating area curves, mechanical dimensions, and revision history for the device.