The 1.5SMC200CA-M3/9AT: The SMC footprint is standard for 1.5 kW surge-rated devices — the copper pad area under the cathode tab sets the junction-to-ambient thermal resistance, so the PCB layout should match the recommended land pattern in the Vishay application note for full surge derating. The 190 V minimum breakdown voltage ensures the device stays off the line under normal 170 VDC bus conditions. Operating temperature spans -65°C to 150°C (junction), covering military and industrial thermal profiles. Power line protection is not supported — this is a signal- or DC-bus protector, not an AC mains suppressor.
Sourcing and lifecycle posture
Supplied in Tape & Reel (TR) — the /9AT suffix indicates the packaging code.