{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6461US","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6461US","canonicalUrl":"https://icboms.com/microchip/1N6461US","factsUrl":"https://icboms.com/api/mcp/products/1N6461US","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6461US, Zener TVS Diode, 500W Peak Pulse Power, 5.6V Breakdown (Min), SQ-MELF B Package, Surface Mount, -55°C to 175°C","salesMarkdown":"The 1N6461US is a Zener-type transient voltage suppressor from Microchip Technology, rated for 500W peak pulse power. It clamps transients on a 5V rail: reverse standoff is 5V typical, breakdown minimum is 5.6V, and clamping at peak current is 9V max. The SQ-MELF B package is a surface-mount hermetic barrel — it handles the thermal pulse of a 315A (8/20µs) surge without cracking, and it reflows cleanly with standard profiles. ## Breakdown and clamping – the rail-protection numbers that matter With a 5V reverse standoff, this part sits directly on a 5V supply rail without leakage at nominal voltage. The 5.6V minimum breakdown means it starts conducting before the rail hits 6V, and the 9V max clamp holds the transient below the absolute maximum of most 5V logic and MCU I/O. The 315A peak pulse current rating at 8/20µs waveform is the surge it can absorb once — useful for lightning or inductive-load dump events. Note that power line protection is not listed, so this is a signal or low-voltage rail protector, not a mains-side device. ## Active status and sourcing through distribution For BOM-line commitment, confirm the SQ-MELF B package footprint against your PCB layout — the barrel body is symmetrical, so orientation is set by the cathode band. Sourced per RFQ; current pricing and lead time confirmed at quote time.","metaTitle":"1N6461US Zener TVS Diode – 500W, 5.6V, SQ-MELF, Active","metaDescription":"1N6461US from Microchip Technology: Zener TVS diode, 500W peak pulse power, 5.6V breakdown, SQ-MELF B 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":"1N6461","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"B, Axial","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"5.6V","Voltage - Clamping (Max) @ Ipp":"9V","Voltage - Reverse Standoff (Typ)":"5V","Current - Peak Pulse (10/1000µs)":"315A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$14.3100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e5a65fed8a348402165405cc04f9ecf4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy 1N6461US and check stock?","answer":"The 1N6461US is an active Microchip Technology part, available through our distribution network."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6461US","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6461US 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}}