54V bidirectional TVS — 1500 W peak pulse, DO-214AB
The SMCJ54CA-13-F: Its 54 V reverse standoff voltage (VRWM) means it sits across a 48 V nominal DC bus or a 54 V peak signal line without conducting in normal operation — it only starts clamping when a transient exceeds 60 V (the minimum breakdown voltage). With a clamping voltage of 87.1 V at 17.2 A peak pulse current, the device limits the voltage seen by the protected circuitry to under 90 V during a surge event. The bidirectional channel means a single part handles both positive and negative transients — useful on AC-coupled data lines or floating DC rails where polarity is not fixed.
Housed in the DO-214AB (SMC) surface-mount package, the SMCJ54CA-13-F has a standard footprint shared with other 1500 W TVS diodes in the same case size. The large copper pad on the cathode side (for unidirectional versions) is absent here — the bidirectional die is centre-tapped, so both terminals carry equal current and the thermal path is through the leads and solder fillets. The -13-F suffix indicates Tape & Reel packaging, which is the standard delivery format for automated pick-and-place assembly. The reel quantity is typically 500 or 3000 pieces depending on the reel diameter — confirm the reel count at RFQ to match your line setup.
Sourcing and lifecycle posture
The base product number SMCJ54 covers multiple variants (unidirectional, different packaging) — ensure the -13-F suffix matches your BOM line.