Transient voltage suppressor — 1.5 kW Zener clamp for signal-line protection
The SMCJ5.0A-13-F: With a 5V reverse standoff voltage (VRWM), the diode stays transparent below the protected rail and only conducts when the transient exceeds the 6.4V minimum breakdown threshold. Clamping is tight at 9.2V max, limiting the voltage seen by the downstream IC to a safe level even at the full 163A peak pulse current.
Package and board-fit — DO-214AB SMC, surface-mount assembly
Housed in the standard DO-214AB (SMC) package, this TVS is a surface-mount device with a tin-plated copper leadframe. The package footprint matches industry-standard SMC land patterns, so no PCB layout change is needed when cross-referencing between suppliers. Available on tape and reel (TR) or cut tape (CT) for both high-volume pick-and-place and prototype builds.
Lifecycle and supply — active production, no end-of-life risk
For BOM continuity planning, the base product number SMCJ5.0 identifies the family; voltage variants up the stack share the same package and footprint, so a last-minute voltage adjustment does not require a board spin.
Application fit — signal-line clamping, not power-rail protection
This device is explicitly marked as not intended for power line protection. It is a signal-line TVS — use it on data interfaces (RS-485, CAN, USB, Ethernet), I/O ports, and low-voltage supply rails where the transient energy is high but the steady-state voltage stays below 5V. The 163A peak pulse current at the 10/1000 µs waveform means it can absorb a direct lightning surge at the board edge without cascading failure, provided the PCB trace and via stack can handle the same current.