500W bidirectional Zener TVS in SQ-MELF
Its 5.7V reverse standoff voltage lets it sit across a 5V rail without leakage, while the 7.13V minimum breakdown voltage triggers clamping at 11.2V maximum under a 44.6A peak pulse current. The SQ-MELF, B package (surface-mount MELF) provides a low-inductance path for fast transients and handles reflow soldering without special handling. The single bidirectional channel simplifies layout for AC or bipolar signal lines — no need to orient the part.
Junction temperature range and application fit
Rated for -55°C to 175°C junction temperature, this diode suits environments where ambient heat pushes beyond 85°C — think industrial motor drives, outdoor telecom cabinets, or underhood automotive modules. The 500W pulse power at 25°C derates linearly above that; at 175°C the capability drops to roughly 20% of the 25°C rating. No power line protection (: No) — this is a signal-line or low-voltage rail TVS, not a mains surge suppressor. Use it on 5V data lines, sensor inputs, or control buses where the 5.7V standoff gives margin above the nominal rail.
Active production and sourcing posture
Microchip lists the 1N6103AUS/TR as Active. We source against an RFQ — confirm the BOM quantity and target delivery window, and we will quote from our multi-source supply chain.