408V standoff — fits 400V-class bus protection
The 1.5SMC480CA/TR13: The 408V reverse standoff voltage means it conducts negligible leakage on a 400V nominal DC bus with normal ripple; the 456V minimum breakdown ensures the device triggers only when the surge actually exceeds the bus tolerance. Clamping at 658V max — that is the voltage the downstream MOSFETs, capacitors, or ICs must survive during the event.
Active lifecycle — no NRND flag
lifecycle status is Active — YAGEO continues to manufacture this part.