1.5 kW clamping margin at 100 V rail
The SMCJ100A-13-F: Its 100 V reverse standoff voltage (working voltage) means it sits across a 100 V DC bus without conducting in normal operation — the leakage stays below the microamp range until a transient pushes the line above the 111 V minimum breakdown threshold. When the transient hits, the diode clamps at 162 V maximum while shunting 9.3 A peak pulse current. For a 100 V rail in industrial power supplies, motor drives, or telecom rectifiers, this clamping voltage keeps the downstream silicon within its avalanche rating — a 200 V MOSFET on that rail has 38 V of headroom above the clamp.
Housed in the DO-214AB (SMC) surface-mount package, the part measures 7.11 mm body length by 6.22 mm width — a standard footprint shared across the SMCJ family. The SMC package dissipates the 1.5 kW pulse through the copper pad area on the PCB; the datasheet recommends a minimum 12 mm x 12 mm pad on each terminal for the rated power. The wide Tj window means the clamping performance holds across cold-start and under-hood conditions without derating the peak pulse power at the upper end.
Rated for general-purpose circuit protection applications. The base product number SMCJ100 identifies the 100 V standoff variant across the SMCJ family, simplifying BOM cross-referencing with other suppliers using the same JEDEC-registered SMCJ numbering scheme.