{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CM1213A-04MR","brand":"onsemi","brandSlug":"onsemi","productSlug":"CM1213A-04MR","canonicalUrl":"https://icboms.com/onsemi/CM1213A-04MR","factsUrl":"https://icboms.com/api/mcp/products/CM1213A-04MR","rawCanonicalId":null},"summary":{"shortDescription":"onsemi CM1213A-04MR, Steering (Rail to Rail) TVS diode array, 4 unidirectional channels, 3.3 V reverse standoff, 10 V typical clamping, 10-MSOP package, active production.","salesMarkdown":"## What this rail-to-rail steering array does The CM1213A-04MR is a steering (rail-to-rail) TVS diode array from onsemi that clamps transient overvoltage on four unidirectional channels. It is designed to protect high-speed data lines operating at 3.3 V — the reverse standoff voltage sits at 3.3 V, so the diode stays off during normal signal swing and only conducts when the line exceeds the breakdown threshold. That 10 V ceiling is low enough to keep downstream 3.3 V CMOS inputs within their absolute-maximum ratings. The rail-to-rail topology steers the surge current to the supply or ground rail rather than shunting it through the IC's own ESD cells. The exposed pad is on the bottom; a good thermal and electrical connection to the PCB ground plane improves both heat sinking and clamping performance.","metaTitle":"CM1213A-04MR onsemi Rail-to-Rail Steering Diode Array","metaDescription":"CM1213A-04MR onsemi steering (rail-to-rail) TVS diode array. 4 unidirectional channels, 3.3 V standoff, 10 V clamping. Active production, 10-MSOP package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"onsemi","Type":"Steering (Rail to Rail)","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"10-TFSOP, 10-MSOP (0.118\\\", 3.00mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"-","Base Product Number":"CM1213","Operating Temperature":"-40°C~85°C(TA)","Power Line Protection":"Yes","Capacitance @ Frequency":"-","Supplier Device Package":"10-MSOP","Unidirectional Channels":"4","Voltage - Breakdown (Min)":"6V","Voltage - Clamping (Max) @ Ipp":"10V (Typ)","Voltage - Reverse Standoff (Typ)":"3.3V","Current - Peak Pulse (10/1000µs)":"1A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cba42dc8f96b34d1713c5f4501d42b20.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does the CM1213A-04MR use?","answer":"It is supplied in a 10-MSOP package (3.00 mm body width), also described as 10-TFSOP. The supplier device package is 10-MSOP. Mounting is surface-mount only."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/CM1213A-04MR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/CM1213A-04MR 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}}