Surge protection for harsh environments
The 1N6144A: The 9.1V reverse standoff means it sits on a 9V rail without conducting leakage — the protection threshold is 11.4V breakdown min, so the rail stays clean until a real event. The through-hole axial package (B, Axial case) is a legacy footprint that survives high-energy pulses better than surface-mount alternatives — the leaded body sinks heat into the board copper.
Peak pulse power and clamping performance
At 1500W peak pulse power, the 1N6144A clamps a 88.8A surge to 16.9V max — that is a 1.9× voltage margin above the 9.1V standoff, typical for a Zener TVS. The bidirectional channel handles both positive and negative transients in one device, saving board space on AC-coupled or bipolar signal lines.
Active lifecycle and sourcing posture
The through-hole axial package is a standard production item, so lead times track the broader Microchip TVS portfolio. For current pricing and availability, submit an RFQ; the part is sourced to order against your BOM quantity.