600 V, 20 A — the CoolMOS C7 offline power switch
It is built for hard-switching and soft-switching topologies in off-line AC-DC supplies — PFC boost stages, LLC resonant converters, and flyback primary switches where the 600 V rating gives headroom above the 380 V PFC bus.
PG-VSON-4 — the small-footprint surface-mount package
The PG-VSON-4 (4-lead VSON) package is a surface-mount, exposed-pad design. The small footprint — roughly 5 mm × 6 mm — suits space-constrained PFC and DC-DC stages where a TO-220 through-hole part would not fit.
Active production — no LTB worry
The ROHS3 compliance is standard for current production — no exemption-based restrictions on the bill of materials.
