{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6463US/TR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6463US-TR","canonicalUrl":"https://icboms.com/microchip/1N6463US-TR","factsUrl":"https://icboms.com/api/mcp/products/1N6463US%2FTR","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6463US/TR, Zener TVS diode, 500W peak pulse power, 13.6V breakdown, 12V reverse standoff, SQ-MELF B package, Tape & Reel.","salesMarkdown":"## Zener TVS for 12V rail clamping The 1N6463US/TR is a unidirectional Zener TVS diode from Microchip Technology, designed to clamp transients on a 12V nominal rail. Its 13.6V minimum breakdown voltage and 22.6V maximum clamping at peak pulse current define the protection window — the rail must stay below 12V reverse standoff during normal operation, and the clamp engages when the transient exceeds breakdown. ## 500W peak pulse and 125A surge capability Rated for 500W peak pulse power with a 125A peak pulse current under the 8/20µs waveform. The 8/20µs pulse is the standard for lightning surge immunity testing per IEC 61000-4-5 — this diode handles the surge current directly, so the downstream circuitry sees only the clamped voltage. The 10/1000µs waveform is also listed, giving a longer-duration surge reference for telecom port protection. ## Active production in SQ-MELF B package The SQ-MELF B package is a surface-mount ceramic barrel — the same footprint as the standard 1N6463US but supplied on Tape & Reel for pick-and-place assembly. The /TR suffix indicates the reeled format; the bare die and electrical characteristics are identical to the non-reel version. ## Wide temperature range for harsh environments This covers military and industrial extremes — the diode can sit on an outdoor telecom board or inside an engine bay without derating the clamping voltage. The ceramic SQ-MELF package handles the thermal cycling without cracking, unlike molded plastic in the same temperature sweep.","metaTitle":"1N6463US/TR Zener TVS Diode – 500W, 13.6V Breakdown, SQ-MELF","metaDescription":"Microchip Technology 1N6463US/TR Zener TVS diode, 500W peak pulse power, 13.6V breakdown, 12V reverse standoff, SQ-MELF B package, active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Microchip Technology","Type":"Zener","Series":"-","Package":"Tape & Reel (TR)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"SQ-MELF, B","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"500W","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":"$12.0900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e5a65fed8a348402165405cc04f9ecf4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is 1N6463US/TR RoHS compliant?","answer":"The evidence does not list a RoHS compliance statement. Verify with the manufacturer or your distributor at quote time — Microchip typically marks RoHS-compliant parts on the label and in the datasheet revision history."},{"question":"What is the power rating of 1N6463US/TR?","answer":"Peak pulse power is 500W under the 10/1000µs waveform. The peak pulse current is 125A under the 8/20µs waveform."},{"question":"Can I use 1N6463US/TR as a replacement for 1N6463US?","answer":"Yes — the /TR suffix only changes the packaging format to Tape & Reel. The electrical specs (breakdown voltage, clamping, power rating) and the SQ-MELF B package are identical to the non-reel 1N6463US. The reeled version is intended for automated pick-and-place; hand-soldering is possible but the tape carrier must be removed first."},{"question":"What does /TR mean in 1N6463US/TR?","answer":"/TR stands for Tape & Reel packaging. The device is the same as the base 1N6463US but supplied on a reel for automated surface-mount assembly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6463US-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6463US-TR 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}}