{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC8.2AHM3_A/I","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC8.2AHM3_A-I","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC8.2AHM3_A-I","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC8.2AHM3_A%2FI","rawCanonicalId":null},"summary":{"shortDescription":"Vishay 1.5SMC8.2AHM3_A/I unidirectional Zener TVS (TransZorb®), AEC-Q101, 7.02V standoff, 7.79V min breakdown, 12.1V max clamping @ 124A, 1.5 kW peak pulse, -65 to 150°C Tj, DO-214AB SMC, surface mount, Tape & Reel.","salesMarkdown":"## Clamping voltage and the protection decision The 1.5SMC8.2AHM3_A/I: The 12.1 V maximum clamping voltage at a 10/1000 µs peak pulse current of 124 A is the figure that decides whether a sensitive downstream load survives an automotive transient — it is the let-through voltage the protected circuit sees when the TVS is fully active. The standoff of 7.02 V sets the normal operating window — below this the TVS presents high impedance and draws only leakage current, leaving the rail clean for the load. When a surge exceeds the 7.79 V minimum breakdown, the Zener channel turns on hard and clamps the event to 12.1 V, shunting 124 A peak from the line before the downstream IC sees overstress — that gap between 7.79 V breakdown and 12.1 V clamping is the protection headroom the designer evaluates against the absolute-maximum rating of the load. ## Peak pulse power and thermal margin 1.5 kW peak pulse rating defines the surge energy the device absorbs in a single 10/1000 µs event — at 124 A through a 12.1 V clamped voltage the device is processing roughly 1.5 kW for the duration of the pulse. Junction temperature is rated to 150 °C; the -65 °C lower limit covers cold-crank and cold-start scenarios in automotive deployments. ## AEC-Q101 qualification for automotive deployments The AEC-Q101 qualifier means this part has passed the automotive electronics council stress tests for discrete semiconductors — temperature cycling, high-temperature reverse bias, humidity, and mechanical shock — qualifying it for ECU power-rail protection in engine-compartment and cabin-domain applications. ## DO-214AB package and surface-mount production note DO-214AB (SMC) is a common SMC footprint — the two-lead barrel-style package mounts on standard surface-mount lines with reflow profiles compatible with lead-free assembly. This is a unidirectional TVS — it clamps positive transients on one polarity only; a bidirectional protection need requires two of these in inverse series or a separate bidirectional part.","metaTitle":"1.5SMC8.2AHM3_A/I Zener TVS, 12.1V Clamping 124A","metaDescription":"Vishay 1.5SMC8.2AHM3_A/I unidirectional Zener TVS, 7.02V standoff, 12.1V clamping at 124A peak pulse.","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":"Automotive, AEC-Q101, 1.5SMC, TransZorb®","Package":"Tape & Reel (TR)","Applications":"Automotive, Telecom","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC8.2","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMC)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"7.79V","Voltage - Clamping (Max) @ Ipp":"12.1V","Voltage - Reverse Standoff (Typ)":"7.02V","Current - Peak Pulse (10/1000µs)":"124A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC8.2AHM3_A%2FI/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 1.5SMC8.2AHM3_A/I and how do I get a current price?","answer":"No live stock or price appears on this page; submit an RFQ and the sourcing desk confirms quoted quantities and current pricing."},{"question":"What is the difference between a unidirectional and bidirectional TVS for this standoff voltage?","answer":"The 1.5SMC8.2AHM3_A/I is a unidirectional channel — it clamps positive transients in one direction only. A bidirectional TVS at the same standoff voltage would block transients on both polarities, which matters for AC-coupled rails or floating supplies; for a standard 12 V automotive rail referenced to chassis ground, unidirectional is the correct selection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC8.2AHM3_A-I","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/1.5SMC8.2AHM3_A-I 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}}