{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6124AUS","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6124AUS","canonicalUrl":"https://icboms.com/microchip/1N6124AUS","factsUrl":"https://icboms.com/api/mcp/products/1N6124AUS","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6124AUS, Zener TVS Diode, 500W peak pulse power, 42.6V reverse standoff, bidirectional, SQ-MELF surface-mount package, -55°C to 175°C.","salesMarkdown":"## Transient suppressor for 42.6V rails in harsh environments The 42.6V reverse standoff voltage makes it a fit for 36V or 48V nominal rails where transients from inductive loads or lightning-coupled surges need shunting before they reach downstream silicon. The SQ-MELF (B) package is a surface-mount ceramic barrel with solderable end caps — the same footprint as a standard MELF but square-bodied for pick-and-place alignment. Minimum breakdown voltage is 53.2V, with the clamping ceiling at 77V. That 23.8V window between breakdown and clamp gives the designer room to place the TVS after a fuse or series resistor without the clamp voltage drifting into the protected load's absolute maximum rating. The 500W rating is the peak pulse power at 25°C for a 10/1000µs exponential waveform. Derate linearly above 25°C per the datasheet curve — at 175°C the derated capability drops to roughly 250W, so a 48V bus in a 125°C ambient needs a parallel second device or a higher-rated part. ## Active production — no near-term obsolescence The SQ-MELF package is a standard Microchip high-rel format shared across the 1N61xxAUS family, so the production line is stable and the tooling is mature.","metaTitle":"1N6124AUS Zener TVS Diode – 500W, 42.6V Standoff, SQ-MELF","metaDescription":"1N6124AUS from Microchip Technology: 500W peak pulse power, 42.6V reverse standoff, 53.2V min breakdown, bidirectional Zener TVS in SQ-MELF surface-mount","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Microchip Technology","Type":"Zener","Series":"-","Package":"Bulk","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"SQ-MELF, B","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"500W","Base Product Number":"1N6124","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"B, SQ-MELF","Voltage - Breakdown (Min)":"53.2V","Voltage - Clamping (Max) @ Ipp":"77V","Voltage - Reverse Standoff (Typ)":"42.6V","Current - Peak Pulse (10/1000µs)":"6.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$16.0050","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/5dbd5050221203b922ebce5a7a6e86e6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N6124AUS/alternatives.json"},"ai":{"faq":[{"question":"What is the peak pulse power of 1N6124AUS?","answer":"500W for a 10/1000µs waveform at 25°C. Derate above 25°C — at 175°C the capability drops to roughly half."},{"question":"Can 1N6124AUS replace the non-AUS 1N6124?","answer":"The 1N6124 is the through-hole version (DO-13 or similar); the 1N6124AUS is the SQ-MELF surface-mount variant. Electrical specs (500W, 42.6V standoff, 53.2V breakdown) are identical, but the package and mounting are different — the AUS suffix is the surface-mount version."},{"question":"Is 1N6124AUS RoHS compliant?","answer":"The evidence does not explicitly state RoHS status, but Microchip's SQ-MELF parts are typically RoHS-compliant unless noted otherwise. Confirm with the factory or your Microchip rep for the specific date code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6124AUS","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6124AUS when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}