1500W bidirectional TVS — surge protection for 342V rails
The 1.5SMC400CA: This combination makes it a direct fit for protecting 342V DC rails or signal lines against transient overvoltage events such as lightning-induced surges or inductive load switching. The bidirectional configuration (single channel) means a single device clamps both positive and negative transients symmetrically, saving PCB area versus back-to-back series diodes.
Active lifecycle — no obsolescence concern
For procurement, the part is sourced to order against an RFQ.
Temperature range and mounting — board-fit details
Surface-mount assembly to the DO-214AB footprint is straightforward — the package has a standard SMC outline with gull-wing leads for visual solder-joint inspection. Note that the part is explicitly not rated for power line protection (Power Line Protection: No) — it is intended for secondary-side signal or DC bus clamping, not direct AC mains surge suppression.