{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CM1213A-04SO","brand":"onsemi","brandSlug":"onsemi","productSlug":"CM1213A-04SO","canonicalUrl":"https://icboms.com/onsemi/CM1213A-04SO","factsUrl":"https://icboms.com/api/mcp/products/CM1213A-04SO","rawCanonicalId":null},"summary":{"shortDescription":"onsemi CM1213A-04SO, Steering (Rail to Rail) TVS diode array, 4 unidirectional channels, 3.3 V reverse standoff, 10 V typical clamp, SC-74 (SOT-457) surface-mount package, active production.","salesMarkdown":"This is a steering (rail-to-rail) TVS diode array — it clamps transients to the supply rails rather than to a fixed voltage, making it a clean fit for high-speed data lines where low capacitance and fast response matter. The 3.3 V reverse standoff matches common 3.3 V logic rails directly; the typical clamp voltage is 10 V at the peak pulse current rating of 1 A (8/20 µs waveform). ## Four unidirectional channels in one SC-74 package Four unidirectional channels let one IC protect up to four signal lines, reducing component count on the board. The SC-74 (SOT-457) package is a compact 6-lead footprint — confirm the pad layout matches your assembly house's stencil aperture for the 0.95 mm pitch. Power line protection is supported, though the primary application is signal-line ESD clamping. ## Sourcing and packaging options The TR variant is the standard production reel for pick-and-place; CT suits prototype or low-volume builds. Surface-mount mounting — no through-hole variant exists for this order code. Current pricing and stock levels are confirmed at quote time. Submit an RFQ with your target quantity and preferred packaging (TR or CT) to receive a firm lead time and price.","metaTitle":"CM1213A-04SO onsemi Rail-to-Rail Steering TVS – Active","metaDescription":"CM1213A-04SO onsemi steering (rail-to-rail) TVS diode array. 4 unidirectional channels, 3.3 V standoff, 10 V clamp. SC-74 package. Active production.","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":"SC-74, SOT-457","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":"SC-74","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":"$0.5900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8cee1ba4295efd51d28fffca3d92f4a7.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How many channels does the CM1213A-04SO have and is it unidirectional?","answer":"It has 4 unidirectional channels. Each channel steers transients to the supply rails, protecting one signal line per channel."},{"question":"Is the CM1213A-04SO RoHS compliant?","answer":"The evidence does not explicitly list RoHS status, but onsemi's standard SC-74 products are typically RoHS-compliant. Confirm with the datasheet or your onsemi sales contact for the specific date code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/CM1213A-04SO","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/CM1213A-04SO 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}}