1.5 kW unidirectional TVS in the 1.5SMCJ series
The 1.5SMCJ20A_R1_00001: The DO-214AB (SMC) package is the mid-power format in this series; it handles more surge energy than the smaller SMA package while sharing the same foot pattern, so a PCB layout can accept either without a spin.
What the voltage ratings mean for protection design
The reverse standoff voltage of 20V is the working rail the protected circuit sees in normal operation — the TVS stays inactive and draws only leakage current below this level. The clamping voltage at 32.4V determines what the downstream load actually sees during a surge event — this is the number the protection designer works backward from when sizing the IC or MOSFET that follows. With a 46.3A peak pulse capability, the part survives a substantial IEC 61000-4-5 surge (typically 8/20 µs) well above the 10/1000 µs rating. General-purpose classification means no dedicated automotive AEC-Q101 qualification is claimed.
Sourcing posture and lifecycle
This part is listed as Active by Panjit International Inc. — it is a production part ordered against the standard BOM. Confirm the tape-and-reel quantity and any MOQ minimums at RFQ, since the listing covers both TR and cut-tape formats and the order quantity may affect the unit price break.