{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ30CA","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ30CA","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ30CA","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ30CA","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor, Zener TVS diode, order code 1.5SMCJ30CA, 1500W peak pulse, 30V reverse standoff, 48.4V clamping, 31A peak pulse, surface mount DO-214AB SMC package.","salesMarkdown":"## What the clamping ratings mean for your protection circuit The 1.5SMCJ30CA is a unidirectional TVS diode specified at 30V reverse standoff — the circuit runs at normal operating voltage with this as the upper limit. That 48.4V clamping ceiling is what the downstream IC or rail actually sees, so the downstream component's absolute-max rating must sit above it with margin. Sustained or repetitive transients above that waveform shape will push the junction temperature higher than the 150°C TJ ceiling, so the clamping voltage and peak current must be evaluated against the actual surge environment the end equipment will see. ## Junction temperature and thermal environment The DO-214AB (SMC) package thermal resistance from junction to ambient determines whether the 150°C ceiling holds under the actual mounting and airflow conditions on the board. This temperature range places the part in general-purpose industrial territory — not qualified for automotive AEC-Q101 or defense JAN screening, so for those programs a screened alternative would need to be identified separately. Surface-mount DO-214AB (SMC) package — the standard footprint for 1500W unidirectional TVS in this voltage class. Pin 1 is the cathode (identified by the band on the body), pin 2 the anode. The package ships as cut strip for feeder placement; the SMC body is wider than the smaller DO-214AA (SL) variant, so verify the pad layout matches this footprint before committing a new board spin. The part is listed for general-purpose applications and is not characterized as a power-line protection device — the 30V standoff rating and single bidirectional channel confirm it is not intended for direct AC line clamping at 220/240V.","metaTitle":"1.5SMCJ30CA TVS Diode, 30V Standoff, DO-214AB","metaDescription":"Diotec 1.5SMCJ30CA unidirectional TVS diode, 1500W peak pulse, 30V standoff / 48.4V clamping, DO-214AB SMC. Active production. Sourced to order on RFQ.","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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMC/DO-214AB","Voltage - Breakdown (Min)":"33.3V","Voltage - Clamping (Max) @ Ipp":"48.4V","Voltage - Reverse Standoff (Typ)":"30V","Current - Peak Pulse (10/1000µs)":"31A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8068","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3fb0502b23c3703cafef426b7b2bf7e5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMCJ30CA/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between standoff voltage and clamping voltage on this diode?","answer":"The reverse standoff of 30V is the maximum operating voltage the circuit should not exceed under normal conditions. The breakdown minimum of 33.3V is where the TVS begins to conduct."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ30CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diotec-semiconductor/1.5SMCJ30CA 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}}