Transient clamping at 42.1 V
The 1.5SMCJ26AS_R1_00001: The 42.1 V maximum clamping voltage at 35.6 A peak pulse current is the let-through ceiling the protected rail must survive.
DO-214AB SMC in tape-and-reel packaging
Supplied in the DO-214AB (SMC) package, surface-mount terminated — the foot print matches the industry-standard SMA/LLL34 land pattern, so pick-and-place assembly is straightforward. Tape-and-reel (TR) and cut-tape (CT) options are listed, covering both high-volume SMT line feed and low-quantity prototype reels. Unidirectional single-channel configuration — this clamps transients in one polarity only. For bidirectional protection the spec must be checked against the peak AC line condition; this part is not the right fit for symmetric AC rails.