Surge protection with AEC-Q101 qualification for automotive lines
The 1.5SMC130CAHE3/9AT: It clamps transients at 179V maximum while conducting 8.4A peak pulse current, protecting downstream electronics from surges like load dump or inductive kickback.
Clamping voltage and standoff — what they mean for your rail
Above that, the device begins to break down at 124V minimum and clamps the surge at 179V maximum — the protected rail must tolerate that clamp voltage without exceeding its own absolute maximum rating. With a bidirectional configuration, this single device protects both positive and negative transients on the same line — useful for AC-coupled signals or bipolar supplies where polarity is not fixed.
Package and board integration
Housed in the standard DO-214AB (SMC) surface-mount package, the part mates with the same footprint as the SMCJ industry-standard outline. The copper pad area under the cathode tab on the PCB sets the thermal resistance — a larger pad improves heat sinking during repetitive surge events. Supplied in tape-and-reel packaging for automated pick-and-place assembly, consistent with high-volume production lines.
Active production — sourcing posture
Sourced through independent distribution channels against an RFQ.