{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC82CA","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMC82CA","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMC82CA","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC82CA","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse 1.5SMC82CA, bidirectional Zener TVS diode, 70.1V standoff, 77.9V min breakdown, 113V clamp, 13.5A peak pulse, 1500W, DO-214AB SMC, -55°C~150°C.","salesMarkdown":"## Standoff and clamping — the two numbers that matter With a 70.1V typical reverse standoff voltage, the 1.5SMC82CA sits idle in the circuit at normal operating conditions, presenting a high impedance to the supply rail. It does not crowbar the bus — it watches and waits. When a transient event exceeds the 77.9V minimum breakdown threshold, the device switches to conduction in picoseconds and clamps the peak voltage across the load to 113V maximum at 13.5A peak pulse current. That 113V ceiling is the number that protects downstream circuitry — the sensitive node never sees more than that, regardless of how hard the surge hits the front end. ## Peak pulse rating — 1500W in the 1.5kW class The 1500W peak pulse rating (10/1000µs waveform) is the standard spec for this SMC-package class. The 13.5A rating is the current the device can pass at that waveform while holding the clamp voltage — use it to calculate the let-through energy budget on the upstream protection upstream of this TVS. ## Temperature and environment Rated for junction temperatures up to 150°C, the part survives the thermal soak from a clamped surge without entering thermal runaway — the derating curve in the Littelfuse datasheet governs the allowed pulse repetition rate at elevated ambient. No power-line-protection rating is listed — this is a board-level transient suppressor, not an AC-mains protection device. It protects a DC rail or a signal node, not the line input. ## Package and sourcing The DO-214AB (SMCJ) package is the industry-standard SMC footprint — multiple manufacturers offer drop-in alternatives in this pin-compatible outline. Surface-mount reflow profile is standard; no special orientation concerns since the bidirectional part has no polarity marking beyond the cathode bar.","metaTitle":"Littelfuse 1.5SMC82CA Zener TVS Diode, 1500W Peak","metaDescription":"Littelfuse 1.5SMC82CA bidirectional Zener TVS diode, 70.1V standoff, 113V clamping, 1500W peak pulse, DO-214AB SMC. Active — quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Type":"Zener","Series":"1.5SMC","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMCJ)","Voltage - Breakdown (Min)":"77.9V","Voltage - Clamping (Max) @ Ipp":"113V","Voltage - Reverse Standoff (Typ)":"70.1V","Current - Peak Pulse (10/1000µs)":"13.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/118f1b70ec0f0941665a20e5472af60a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC82CA/alternatives.json"},"ai":{"faq":[{"question":"What does bidirectional mean for 1.5SMC82CA selection?","answer":"Bidirectional means the TVS clamps transients on both polarities — suitable for AC signal lines, differential pairs, or any node where the voltage can swing both positive and negative relative to ground. If your circuit is strictly unidirectional, check whether the unidirectional variant in the same series is a better fit."},{"question":"What is the difference between the standoff voltage and the breakdown voltage?","answer":"The 70.1V reverse standoff is the maximum voltage the TVS can block indefinitely without conducting. The 77.9V minimum breakdown is the threshold where the TVS begins to conduct when a transient pushes the voltage higher. The clamping voltage — 113V at peak pulse current — is where the TVS actively clamps during a surge event."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5SMC82CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMC82CA 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}}