1500W surge clamp in a DO-214AB footprint
The SMCJ7.5CE3/TR13 is a Zener-type TVS diode rated for 1500W peak pulse power at 10/1000µs waveform — the standard surge rating for protecting 7.5V nominal rails from lightning-induced transients or inductive load dumps. Its single bidirectional channel clamps both positive and negative overvoltages to 14.3V maximum, which means a single device covers a bipolar signal line or an AC-coupled data pair without needing two diodes back-to-back.
Breakdown starts at 8.33V minimum, so a 7.5V supply rail stays below the avalanche threshold during normal operation. At the peak pulse current of 104.9A (10/1000µs), the clamping voltage is held to 14.3V maximum, which keeps the transient below the absolute maximum rating of most 12V-rated ICs on that rail.
Active production with tape-and-reel delivery
Sourcing is through franchised distribution; we can quote to your BOM quantity against current market pricing.
The DO-214AB (SMC) package is a standard surface-mount footprint with a large copper pad area — the thermal resistance to ambient depends on the PCB copper pour under the cathode tab, so a 1 oz copper pour of at least 300 mm² is typical to keep junction temperature rise within limits during repetitive surge events.