{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6139US","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6139US","canonicalUrl":"https://icboms.com/microchip/1N6139US","factsUrl":"https://icboms.com/api/mcp/products/1N6139US","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6139US, Zener TVS diode, 1500W peak pulse power, 7.13V min breakdown, 11.2V clamping, bidirectional, SQ-MELF surface mount, -55°C to 175°C junction temperature.","salesMarkdown":"## 1500 W peak pulse — Zener TVS in SQ-MELF The 1N6139US is a bidirectional Zener TVS diode from Microchip Technology, rated for 1500 W peak pulse power per the 10/1000 µs waveform. That 1500 W rating means it can absorb a substantial surge — think lightning-induced transients or inductive load dumps — without failing short. The clamping voltage peaks at 11.2 V at the full 133.9 A peak pulse current, so a 5.7 V rail sees the overvoltage clipped well before it reaches downstream silicon. ## 7.13 V breakdown — where clamping starts Breakdown voltage is specified at 7.13 V minimum. That is the threshold where the device transitions from high-impedance to conducting — below that voltage the leakage is negligible, above it the diode shunts current to ground. The reverse standoff voltage is 5.7 V typical, so the part sits on a 5 V or 5.7 V bus without conducting during normal operation. If you are protecting a 5 V logic rail, the margin between 5.7 V standoff and 7.13 V breakdown gives about 1.4 V of headroom before the TVS starts to clamp — enough to ride through mild ripple without nuisance triggering. ## Bidirectional — single device protects both polarities With one bidirectional channel, the 1N6139US clamps equally on positive and negative transients. That simplifies the board layout — one component across the rail and ground, no polarity concern. The junction temperature range spans -55°C to 175°C, so the part holds its breakdown and clamping characteristics across military and industrial temperature extremes. No power line protection — this is a signal- or low-voltage rail protector, not a mains-side MOV replacement.","metaTitle":"1N6139US – Microchip Zener TVS Diode, 1500W, 7.13V Breakdown","metaDescription":"1N6139US from Microchip Technology: Zener TVS diode, 1500W peak pulse power, 7.13V min breakdown, 11.2V clamping, bidirectional, 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":"-","Packaging":"Bulk","Part Status":"Active","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"SQ-MELF, C","lifecycle_stage":"eol_hot","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1N6139","Operating Temperature":"-55°C ~ 175°C (TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"C, SQ-MELF","Voltage - Breakdown (Min)":"7.13V","Voltage - Clamping (Max) @ Ipp":"11.2V","Voltage - Reverse Standoff (Typ)":"5.7V","Current - Peak Pulse (10/1000µs)":"133.9A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$23.3601","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://www.microsemi.com/document-portal/doc_download/127854-1n6138us-1n6173aus-tvs-diode-series-datasheet","sourceUrl":null},"ai":{"faq":[{"question":"Can the 1N6139US handle 1500 W surge protection?","answer":"Yes — the peak pulse power rating is 1500 W for a 10/1000 µs waveform. At that power level the clamping voltage reaches 11.2 V maximum at 133.9 A peak pulse current. It is suited for protecting low-voltage DC rails against lightning or inductive load transients."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6139US","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6139US 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}}