{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6148A","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6148A","canonicalUrl":"https://icboms.com/microchip/1N6148A","factsUrl":"https://icboms.com/api/mcp/products/1N6148A","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6148A, Zener TVS diode, 1500W peak pulse power, bidirectional, 13.7V reverse standoff, 25.1V clamp, Axial package, Active production.","salesMarkdown":"## What this Zener TVS protects and where it fits It clamps transients at 25.1V max with a 13.7V reverse standoff, meaning it sits across a 12V rail and stays out of the way until a surge hits — then it shunts up to 59.8A to ground. Single bidirectional channel means it protects both polarities — no need to stack two unidirectional parts for AC or bipolar DC lines. The Axial through-hole package (B, Axial) is a repair-bench favourite: easy to solder, easy to probe, and the scorch mark tells you which part actually died. ## Package and mounting 1500W peak pulse power at 10/1000µs is the headline number — it tells you the energy the diode can absorb in a single surge before the junction gives up. For a 12V nominal rail, the 25.1V clamp gives you about 2× headroom above the rail, which keeps downstream components inside their SOA during a lightning-induced transient or inductive kickback. The 59.8A peak pulse current is the current the diode must pass at the clamp voltage — if your source impedance is low, the actual surge current can exceed this and the part will fail short. That is the failure signature you see on a board: the TVS looks like a dead short, and the upstream fuse or PTC opens.","metaTitle":"1N6148A TVS Diode – 1500W Bidirectional Zener","metaDescription":"1N6148A Zener TVS diode, 1500W peak pulse power, bidirectional, 13.7V standoff, 25.1V clamp. Active production, -55°C to 175°C. Sourced per RFQ.","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":"1N6148","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"Axial","Voltage - Breakdown (Min)":"17.1V","Voltage - Clamping (Max) @ Ipp":"25.1V","Voltage - Reverse Standoff (Typ)":"13.7V","Current - Peak Pulse (10/1000µs)":"59.8A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$18.7950","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://www.microsemi.com/document-portal/doc_download/127853-1n6138-1n6173a-tvs-diode-series-datasheet","sourceUrl":null},"ai":{"faq":[{"question":"What is the peak pulse power of 1N6148A?","answer":"1500W peak pulse power measured with a 10/1000µs waveform. That is the energy rating for a single surge event at 25°C ambient."},{"question":"Is 1N6148A bidirectional?","answer":"Yes, it has one bidirectional channel. It clamps both positive and negative transients symmetrically, so it works on AC lines or bipolar DC rails without needing two diodes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6148A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6148A 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}}