{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6463US","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6463US","canonicalUrl":"https://icboms.com/microchip/1N6463US","factsUrl":"https://icboms.com/api/mcp/products/1N6463US","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6463US, Zener TVS Diode, 500W Peak Pulse Power, 12V Reverse Standoff, Unidirectional, SQ-MELF B Package, -55°C to 175°C","salesMarkdown":"The 1N6463US is a unidirectional Zener TVS diode from Microchip Technology, designed to clamp voltage transients on a 12V nominal rail. It delivers 500W peak pulse power per the 10/1000µs waveform, with a clamping voltage of 22.6V at the peak current of 125A (8/20µs). The SQ-MELF B package is a surface-mount hermetic ceramic body — the same footprint used in military and aerospace transient suppression — rated for the full -55°C to 175°C junction temperature range. ## Peak Pulse Power and Clamping Performance At 500W peak pulse power, this part handles surges that would destroy a standard signal diode. The 12V reverse standoff voltage means the rail sits at 12V or below during normal operation; the diode only conducts when the transient exceeds the 13.6V minimum breakdown threshold. The 22.6V clamp at 125A (8/20µs) gives the downstream circuitry a hard voltage ceiling — useful for protecting 12V power inputs, sensor lines, or communication ports in industrial or avionics gear. ## Lifecycle and Sourcing Posture The SQ-MELF package is a standard hermetic format, so reel quantities are available through distribution. For BOM commitment, this part is sourced per RFQ — confirm the required quantity and delivery window, and we will quote against the current market.","metaTitle":"1N6463US Zener TVS Diode – 500W, 12V Standoff, SQ-MELF","metaDescription":"1N6463US Zener TVS diode from Microchip Technology. 500W peak pulse power, 12V reverse standoff, unidirectional, SQ-MELF package, -55°C to 175°C.","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":"1N6463","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"B, SQ-MELF","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"13.6V","Voltage - Clamping (Max) @ Ipp":"22.6V","Voltage - Reverse Standoff (Typ)":"12V","Current - Peak Pulse (10/1000µs)":"125A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.6700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e5a65fed8a348402165405cc04f9ecf4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the peak pulse power of the 1N6463US?","answer":"The 1N6463US is rated for 500W peak pulse power, tested with a 10/1000µs waveform. At the shorter 8/20µs pulse, the peak current is 125A, clamping at 22.6V."},{"question":"What is the 1N6463US used for?","answer":"It is a Zener TVS diode for general-purpose transient suppression on 12V DC rails. Typical applications include protecting power inputs, sensor interfaces, and communication lines in industrial controls, avionics, and downhole equipment where the -55°C to 175°C temperature range is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6463US","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6463US when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}