{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6277A-E3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1N6277A-E3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1N6277A-E3-54","factsUrl":"https://icboms.com/api/mcp/products/1N6277A-E3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® unidirectional TVS Zener, 1N6277A-/54, 15.3V standoff, 17.1V breakdown min, 25.2V clamping max, 1.5 kW peak pulse, 59.5A, DO-201AA axial, -55°C~175°C, active.","salesMarkdown":"## Transient suppression ratings — what the numbers decide The 1N6277A-E3/54: The 15.3 V typical reverse standoff is the working voltage at which the TVS sits idle in normal operation; the 17.1 V minimum breakdown is where it begins conducting. A unidirectional TVS of this class is the right fit across secondary-side protection on power rails, input clamps on industrial I/O, and transient absorption on telecom bus nodes — anywhere a fast-clamp response below a few hundred nanoseconds is required and the 1.5 kW peak budget covers the threat magnitude. ## Peak pulse power and surge budget The 59.5 A peak pulse current tells you the surge current the part survives during a single event; the clamping voltage at that current is what the downstream circuit actually sees. A 1.5 kW/59 A TVS in the 15–25 V working range covers 24 V industrial rails and 12 V automotive nodes where the surge threat is IEC 61000-4-5 Level 4 or below. ## Temperature grade and junction environment The -55 °C to 175 °C junction temperature range signals the part is qualified for the extended thermal environment of industrial enclosures, engine-adjacent modules, or any design where transient self-heating during a surge event can push the junction above the typical 125 °C ceiling. Junction temperature is the limit; the thermal resistance from junction to lead determines how quickly the part self-heats during a 10/1000 µs pulse — design the lead length and pad thermal relief accordingly to stay below 175 °C at the worst-case surge repetition rate. ## Package, mounting, and sourcing posture The DO-201AA axial body is the through-hole form factor most buyers associate with the legacy 1N TVS family — it mounts in a standard 0.4-inch lead spacing footprint on a PCB or pigtail-connects into a harness entry point. Taped-and-reeled packaging supports automated insertion; cut-tape is available for prototype quantities. The base product number 1N6277 groups this part into the broader 1.5KE family so alternative voltage selections within the series are pin-compatible drops.","metaTitle":"1N6277A-E3/54 Vishay TVS Diode, 1.5 kW, 25.2V Clamping","metaDescription":"Vishay 1N6277A-E3/54 unidirectional TVS Zener, 15.3V standoff, 25.2V clamping, 1.5 kW peak pulse at 59.5A. Active. Quoted to order on RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"TransZorb®","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1N6277","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"17.1V","Voltage - Clamping (Max) @ Ipp":"25.2V","Voltage - Reverse Standoff (Typ)":"15.3V","Current - Peak Pulse (10/1000µs)":"59.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3246","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N6277A-E3%2F54/alternatives.json"},"ai":{"faq":[{"question":"What voltage ratings define 1N6277A-/54 and how do I size it into a circuit?","answer":"The three defining voltages are: 15.3 V typical reverse standoff (idle working voltage), 17.1 V minimum breakdown, and 25.2 V maximum clamping at 59.5 A peak pulse. Select the standoff to sit above the maximum working voltage of the protected rail, and confirm the clamping voltage stays below the absolute-maximum rating of the downstream component you are guarding."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1N6277A-E3-54","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay-general-semiconductor-diodes-division/1N6277A-E3-54 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}}