{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6168A","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6168A","canonicalUrl":"https://icboms.com/microchip/1N6168A","factsUrl":"https://icboms.com/api/mcp/products/1N6168A","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6168A, Zener TVS diode, 1500W (1.5kW) peak pulse power, 91.2V reverse standoff, 165.1V clamping at 9.1A, bidirectional, axial through-hole package, -55°C to 175°C junction temperature.","salesMarkdown":"## 1500W bidirectional Zener TVS in axial package The 1N6168A is a bidirectional Zener TVS diode from Microchip Technology rated for 1500W (1.5kW) peak pulse power per the 10/1000µs waveform. The 91.2V reverse standoff voltage and 165.1V clamping at 9.1A make it a fit for protecting 72V to 90V DC rails — common in telecom rectifiers, industrial power supplies, and battery-charger outputs. The through-hole axial package (B, Axial per) suits point-of-use board-level clamping where a soldered lead gives better thermal conduction to the PCB copper than a surface-mount part of the same power class. ## Clamping voltage and pulse current — the protection window The 114V minimum breakdown voltage and 165.1V maximum clamping at 9.1A define the voltage window the protected circuitry must survive. A downstream DC-DC converter rated at 100V absolute maximum would be marginal; a 150V-rated input stage gives adequate margin. The 9.1A peak pulse current at the 10/1000µs waveform is the current the diode shunts — the PCB trace width and fuse rating upstream must handle that surge without opening. Bidirectional operation simplifies BOM polarity — one part covers both positive and negative transients without a bridge arrangement. The base product number 1N6168 covers the unidirectional variant; the 'A' suffix indicates a tighter breakdown tolerance or a specific test condition — confirm the exact BOM callout before substituting. Through-hole axial TVS diodes in this power class remain in steady production across multiple suppliers.","metaTitle":"1N6168A Zener TVS Diode – 1500W, 91.2V Standoff","metaDescription":"1N6168A Zener TVS diode from Microchip Technology. 1500W peak pulse power, 91.2V reverse standoff, 165.1V clamping.","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":"Through Hole","Package / Case":"B, Axial","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1N6168","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"Axial","Voltage - Breakdown (Min)":"114V","Voltage - Clamping (Max) @ Ipp":"165.1V","Voltage - Reverse Standoff (Typ)":"91.2V","Current - Peak Pulse (10/1000µs)":"9.1A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$18.7950","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N6168A/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between 1N6168A and 1N6168?","answer":"The base part 1N6168 is the unidirectional version of this TVS family. The 'A' suffix on 1N6168A typically denotes a tighter breakdown voltage tolerance or a specific test condition per the MIL-PRF-19500 specification. The 1N6168A is bidirectional — confirm the polarity requirement on your BOM before substituting one for the other."},{"question":"Is 1N6168A suitable for surge protection in power supplies?","answer":"Yes, for DC power supply rails up to 91.2V nominal. The 1500W peak pulse rating and 165.1V clamping voltage protect downstream converters from lightning-induced or inductive-load transients. Power line protection is not listed, so it is not intended for AC mains primary-side suppression."},{"question":"What is the equivalent part for 1N6168A?","answer":"Within the Microchip 1N6xxx family, the 1N6168 (unidirectional,) shares the same power and voltage ratings but differs in polarity. For a direct bidirectional replacement from another manufacturer, compare the 91.2V standoff, 114V breakdown min, and 165.1V clamping against parts like the Littelfuse 1.5KE91A or Vishay P6KE91A — confirm the pulse current rating matches your waveform."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6168A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6168A when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}