{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ22A","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ22A","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ22A","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ22A","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor Zener TVS diode, 1.5SMCJ22A, 22V reverse standoff, 35.5V clamping max, 1500W peak pulse, 42.3A peak pulse current, DO-214AB SMC surface-mount package.","salesMarkdown":"## What the clamping specs mean for your protection circuit The 1.5SMCJ22A clamps the line to 35.5 V maximum at a 42.3 A peak pulse current using the 10/1000 µs waveform convention — that 35.5 V ceiling is what the downstream IC or bus sees during a transient event, so the downstream rail headroom must be rated above it. With 1500 W peak pulse power rating in the DO-214AB package, the diode handles the surge energy without relying on a separate heatsink — the SMC package tab carries the thermal path to the board copper. Reverse standoff is 22 V typical; breakdown minimum is 24.4 V — the diode stays invisible in normal operation and transitions into avalanche conduction only once the transient exceeds the standoff threshold. ## Package and thermal integration The SMC (DO-214AB) package is the mid-range TVS footprint — larger than SOD-323 but more compact than R-6/puck packages — which makes it the standard pick for board-level protection on 24 V industrial bus rails. Junction temperature rating is -50°C to 150°C, so the part tolerates the thermal cycling seen in enclosed panels without derating the clamping performance — the -50°C cold side matters for outdoor or cold-start conditions. This is a unidirectional device with one active channel — it protects a single polarity rail. For AC or bipolar rails a bidirectional variant from the same 1.5SMCJ series would be needed. ## Sourcing posture Use accordingly for the right fault domain.","metaTitle":"Diotec 1.5SMCJ22A TVS Diode, 22V, 35.5V Clamp","metaDescription":"Unidirectional TVS diode, 22V standoff, 35.5V clamping @ 42.3A peak pulse, 1500W peak power, DO-214AB SMC package, -50°C to 150°C junction.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Diotec Semiconductor","Type":"Zener","Series":"-","Package":"Strip","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Operating Temperature":"-50°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMC/DO-214AB","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"24.4V","Voltage - Clamping (Max) @ Ipp":"35.5V","Voltage - Reverse Standoff (Typ)":"22V","Current - Peak Pulse (10/1000µs)":"42.3A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9158","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3fb0502b23c3703cafef426b7b2bf7e5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Who supplies 1.5SMCJ22A and how is it quoted for volume purchases?","answer":"Quoted to order through independent distribution channels."},{"question":"What is 1.5SMCJ22A's listed type on this Circuit Protection line?","answer":"The part is classified as a Zener type TVS diode — a unidirectional transient voltage suppressor in the DO-214AB SMC package, rated 22 V standoff with 35.5 V clamping."},{"question":"What compliance documentation does Diotec provide for 1.5SMCJ22A?","answer":"The available product data does not list specific compliance certifications (RoHS, REACH, UL, or IEC). Confirm current REACH/RoHS status and any applicable IEC 61000-4-x transient standards directly with Diotec or the supplier at RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ22A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diotec-semiconductor/1.5SMCJ22A 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}}