{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6140AUS","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6140AUS","canonicalUrl":"https://icboms.com/microchip/1N6140AUS","factsUrl":"https://icboms.com/api/mcp/products/1N6140AUS","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6140AUS, Zener transient-voltage suppressor, bidirectional, 1500W peak pulse power (10/1000µs), 6.2V reverse standoff, SQ-MELF C package, -55°C to 175°C junction range.","salesMarkdown":"## Zener TVS for high-reliability rails 1N6140AUS is a bidirectional Zener transient-voltage suppressor rated for 1500W peak pulse power at 10/1000µs waveform — the headline rating a protection engineer checks first when clamping a 6.2V rail against lightning or inductive-load transients. The junction temperature range spans -55°C to 175°C, which puts this part into military/aerospace and downhole equipment where the ambient can exceed 125°C and the self-heating from repetitive pulses must stay within the die's thermal budget. ## Clamping voltage and pulse current Breakdown voltage minimum is 7.79V; the clamping voltage at peak pulse current is 12.1V max — this 4.3V window between standoff and clamp tells the designer how much overvoltage the downstream circuitry must survive before the Zener conducts fully. Peak pulse current is 124A for the 10/1000µs waveform — the actual current the die can sink without failing, used to calculate the transient energy the part absorbs per event. ## Surface-mount MELF for harsh environments Packaged in SQ-MELF, C — a cylindrical surface-mount body with metallized end caps. The MELF footprint is less common than a SOD or SMB, so confirm the solder pad geometry matches the IPC-7351 standard for this package before committing the PCB layout. The base product number 1N6140 covers a family of voltage variants; the AUS suffix specifies the bidirectional polarity and the SQ-MELF package.","metaTitle":"1N6140AUS Zener TVS Diode – 1500W, SQ-MELF, Microchip","metaDescription":"1N6140AUS Zener TVS diode from Microchip Technology. 1500W peak pulse power, 6.2V reverse standoff, bidirectional, SQ-MELF C package.","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, C","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1N6140","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)":"7.79V","Voltage - Clamping (Max) @ Ipp":"12.1V","Voltage - Reverse Standoff (Typ)":"6.2V","Current - Peak Pulse (10/1000µs)":"124A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$24.0750","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":"Is 1N6140AUS bidirectional?","answer":"Yes — it has one bidirectional channel, meaning it clamps both positive and negative transients symmetrically. Use it on AC signal lines or DC rails where the polarity can reverse during a fault."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6140AUS","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6140AUS 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}}