{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6275AG","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1N6275AG","canonicalUrl":"https://icboms.com/littelfuse-inc/1N6275AG","factsUrl":"https://icboms.com/api/mcp/products/1N6275AG","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. Mosorb Zener TVS diode, 1N6275AG, 1.5 kW peak pulse, 12.8 V standoff / 14.3 V breakdown / 21.2 V clamping, DO-201AD axial through-hole, -65°C to 175°C junction.","salesMarkdown":"The 1N6275AG: The 1.5 kW peak pulse rating is not a continuous figure — it is the maximum energy the device will absorb during a single transient event, typically an IEC 61000-4-5 surge waveform. At that energy level the clamping voltage reaches 21.2 V maximum, which is what the downstream circuitry sees during the event rather than the raw surge voltage at the input. ## Clamping versus standoff — the protection window Reverse standoff of 12.8 V typ means the TVS sits invisible to the circuit during normal operation, drawing only leakage current. This 7 V window between breakdown and clamping is the energy-absorption headroom — the tighter it is, the less stress reaches the protected node. The distinction matters for design: unlike a Zener used for regulation, this part is optimised for crowbar-type clamping. It is not in regulation at 12.8 V — it sits open until the transient arrives, then it switches hard into avalanche to absorb the surge energy. ## Junction temperature and environment The -65°C to 175°C junction temperature rating places this device in the high-reliability tier of TVS diodes — 175°C TJ is well above what most commercial or even industrial Zener TVS parts specify. The DO-201AD axial package and through-hole mounting suit board-level integration where the lead length contributes to thermal relief on repetitive pulses. General-purpose classification means it is not radiation-hardened or specially screened for defence — the wide temp range reflects the diode junction physics rather than enhanced screening. For aerospace or defence programmes requiring JAN or MIL-PRF-19500 screening, a different part number in the same Mosorb family would be needed. ## Sourcing and lifecycle This is a last-time-buy window situation: existing stock, if any, circulates through independent and surplus channels. Confirming lot traceability and functional test data at RFQ is the primary vetting step before committing to a BOM position on a discontinued Zener TVS.","metaTitle":"Littelfuse 1N6275AG Zener TVS, 1.5kW Peak, DO-201AD","metaDescription":"Littelfuse 1N6275AG Mosorb Zener TVS diode, 1.5kW peak pulse, 21.2V clamping. Obsolete — quoted to order via RFQ through independent distribution.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Type":"Zener","Series":"Mosorb™","Package":"Bulk","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AD, Axial","Product Status":"Obsolete","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1N6275A","Operating Temperature":"-65°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"Axial","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"14.3V","Voltage - Clamping (Max) @ Ipp":"21.2V","Voltage - Reverse Standoff (Typ)":"12.8V","Current - Peak Pulse (10/1000µs)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b2bad05ac2a782d44789dbfb00c46ecc.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N6275AG/alternatives.json"},"ai":{"faq":[{"question":"What does the 21.2 V clamping voltage mean for the circuit being protected?","answer":"During a transient event the TVS holds the protected node at or below 21.2 V maximum. The downstream circuitry — a power rail, signal line, or input stage — sees that clamped level instead of the raw surge voltage. The gap between the 12.8 V standoff and 21.2 V clamping is the headroom the device uses to absorb surge energy before the voltage is constrained."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1N6275AG","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1N6275AG when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T16:37:39.284Z","lastPublished":"2026-07-22T16:37:39.284Z","indexable":true}}