{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC22CAHM3_A/I","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC22CAHM3_A-I","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC22CAHM3_A-I","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC22CAHM3_A%2FI","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, 1.5SMC TransZorb® series, bidirectional TVS diode, 1500W peak pulse power, 18.8V standoff, 30.6V clamp, DO-214AB (SMC) package, AEC-Q101 qualified.","salesMarkdown":"## 1.5kW bidirectional TVS for automotive and telecom bus protection The 1.5SMC22CAHM3_A/I: It clamps transients at 30.6 V maximum and has a reverse standoff voltage of 18.8 V, making it suited for protecting 18 V nominal rails in automotive and telecom equipment. ## Voltage ratings and clamping performance The 18.8 V reverse standoff voltage defines the maximum DC or peak-AC voltage the protected line can carry without the diode conducting. Breakdown occurs at a minimum of 20.9 V, and the clamping voltage is 30.6 V at the rated 49 A peak pulse current. The 11.8 V gap between standoff and clamp gives the designer headroom to absorb transients without exceeding the downstream IC's abs-max rating. Supplied in the DO-214AB (SMC) package, a standard surface-mount footprint with a large copper pad on the bottom for heat sinking. The 1500 W rating assumes the PCB copper area specified in the datasheet's thermal model — a smaller pad raises the junction temperature and derates the peak pulse capability. Tape & Reel packaging suits automated pick-and-place assembly. The 1.5SMC series includes multiple voltage variants; a BOM change to a different standoff voltage would require re-evaluation of the protected rail's transient immunity.","metaTitle":"1.5SMC22CAHM3_A/I TVS Diode, 1.5kW, 30.6V Clamp, DO-214AB","metaDescription":"Vishay 1.5SMC22CAHM3_A/I bidirectional TVS, 1500W peak pulse, 18.8V standoff, AEC-Q101 automotive grade. Active production, sourced per 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","Grade":"Automotive","Series":"1.5SMC, TransZorb®","Packaging":"Tape & Reel (TR)","Part Status":"Active","Applications":"Telecom","Mounting Type":"Surface Mount","Qualification":"AEC-Q101","Package / Case":"DO-214AB, SMC","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC22","Operating Temperature":"-65°C ~ 150°C (TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMC)","Voltage - Breakdown (Min)":"20.9V","Voltage - Clamping (Max) @ Ipp":"30.6V","Voltage - Reverse Standoff (Typ)":"18.8V","Current - Peak Pulse (10/1000µs)":"49A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4447","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC22CAHM3_A%2FI/alternatives.json"},"ai":{"faq":[{"question":"What is the peak pulse power rating and what waveform is it based on?","answer":"The 1.5SMC22CAHM3_A/I is rated for 1500 W peak pulse power using a 10/1000 µs exponential waveform. The clamping voltage of 30.6 V is specified at the corresponding 49 A peak pulse current. For shorter pulses (e.g., 8/20 µs), the peak power capability is higher — consult the Vishay 1.5SMC series datasheet for the derating curves."},{"question":"What compliance documentation is available for this part?","answer":"Vishay provides RoHS and REACH compliance declarations for the 1.5SMC series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC22CAHM3_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/1.5SMC22CAHM3_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}}