{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMCJ188A-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SMCJ188A-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/SMCJ188A-TR","factsUrl":"https://icboms.com/api/mcp/products/SMCJ188A-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SMCJ188A-TR, TRANSIL series, Zener TVS diode, 188 V standoff, 209 V breakdown, 388 V clamping, 1500 W peak pulse, unidirectional, DO-214AB (SMC) surface mount, -55 to 150 °C.","salesMarkdown":"## 188 V standoff — rail protection for 150 V–200 V DC buses ## Clamping voltage and breakdown window The device triggers at a minimum breakdown of 209 V and clamps the transient to a maximum of 388 V at the rated peak pulse current of 26 A (8/20 µs). This 179 V window between standoff and clamp gives the designer margin to protect downstream semiconductors rated for 400 V or higher, while keeping the normal rail at 188 V well below the avalanche threshold. ## DO-214AB SMC footprint and temperature range Housed in a DO-214AB (SMC) surface-mount package, the SMCJ188A-TR fits standard reflow profiles and shares a footprint with other 1500 W SMC TVS diodes.","metaTitle":"STMicroelectronics SMCJ188A-TR Zener TVS, 1500 W, DO-214AB","metaDescription":"STMicroelectronics SMCJ188A-TR TRANSIL TVS diode, 188 V standoff, 209 V breakdown, 388 V clamping, 1500 W peak pulse, DO-214AB SMC, unidirectional.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"STMicroelectronics","Type":"Zener","Series":"SMCJ, TRANSIL™","Package":"Tape & Reel (TR) Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"SMCJ188","Operating Temperature":"-55°C ~ 150°C (TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMC","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"209V","Voltage - Clamping (Max) @ Ipp":"388V","Voltage - Reverse Standoff (Typ)":"188V","Current - Peak Pulse (10/1000µs)":"26A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/afa32e66ad58d9d3b67a92acb79ea14b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SMCJ188A-TR/alternatives.json"},"ai":{"faq":[{"question":"Is SMCJ188A-TR unidirectional or bidirectional?","answer":"It is unidirectional — one channel for positive transient clamping relative to ground. For bidirectional protection on AC or bipolar rails, use a different variant in the SMCJ series."},{"question":"Can I use SMCJ188A-TR as a replacement for SMCJ188A?","answer":"The base product number SMCJ188 covers both; the -TR suffix indicates Tape & Reel packaging. Electrically, SMCJ188A-TR is identical to the SMCJ188A in other packaging formats — same 188 V standoff, same 1500 W rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SMCJ188A-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SMCJ188A-TR 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}}