Unidirectional Zener TVS — clamping ratings at a glance
The 1.5SMCJ15CA_R1_00001 is a unidirectional Zener transient voltage suppressor rated 15 V reverse standoff — the rail voltage it sits across without conducting in the off state. The 1.5 kW peak pulse power rating defines the energy the part can absorb during a single transient without degradation. The bidirectional channel count of 1 means a single polarity is protected — this is a uni-directional clamp, not a bridge configuration. Applications are listed as general purpose and power line protection is flagged as not applicable — this part protects signal rails and individual active outputs, not mains-powered lines. The operating junction temperature spans -55 to 150 °C, which covers automotive under-hood and industrial outdoor environments where thermal cycling drives the Tj ceiling.
DO-214AB SMC package — surface-mount fit
The DO-214AB (SMC) package is the standard j-lead for 1.5–3 kW TVS diodes on consumer and industrial PCBs — the cathode bar on the top face is the polarity mark. Tape-and-reel packaging suits high-volume pick-and-place assembly. Soldering is standard IR or vapor-phase reflow; the datasheet thermal profile for the SMC should be followed to avoid cracking the glass-passivated junction.
The part carries an Active product status from Panjit International Inc., confirming current production.