The 1.5SMC160A_R1_00001: At 136 V reverse standoff (the maximum DC voltage the diode blocks without conducting), it suits 120 VAC or 125 VDC rails where the normal operating voltage sits comfortably below that threshold. A 152 V minimum breakdown voltage means the device starts conducting before the rail exceeds 152 V, giving the protected circuit a narrow window between normal operation and the clamp ceiling.
Package and board-fit realities for the layout engineer
Housed in a DO-214AB (SMC) surface-mount package, the part mates to a standard SMC footprint — the same pad geometry used across the 1.5SMC series, so a single copper land serves the full power range. Supplied on tape and reel (cut tape also available), the package is pick-and-place ready for volume assembly. The single unidirectional channel means the cathode band must be oriented toward the protected rail — reverse insertion leaves the load unprotected.