{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CM1213A-02SO","brand":"onsemi","brandSlug":"onsemi","productSlug":"CM1213A-02SO","canonicalUrl":"https://icboms.com/onsemi/CM1213A-02SO","factsUrl":"https://icboms.com/api/mcp/products/CM1213A-02SO","rawCanonicalId":null},"summary":{"shortDescription":"onsemi CM1213A-02SO, Steering (Rail to Rail) TVS diode array, 2 unidirectional channels, 3.3V reverse standoff, 10V typical clamping, SC-74 surface-mount package","salesMarkdown":"## Obsolete — planning the BOM transition No official successor is named in the available records, so a pin-compatible or functionally equivalent part must be qualified for new designs or last-time buys. For existing BOM lines, sourcing through independent distribution is the practical path. We can source the CM1213A-02SO against an RFQ — confirm the quantity and date-code window, and we will quote from available inventory or open-market stock. This is a Steering (Rail to Rail) TVS diode array — it clamps transients on high-speed data lines by steering the surge current to the supply rail or ground, rather than shunting it to ground through a single avalanche junction. That topology keeps the clamping voltage low and the capacitance small, which is why you see these on HDMI, USB 2.0, and LVDS interfaces. The reverse standoff voltage is 3.3V, so it sits directly on a 3.3V logic rail without conducting during normal operation. When a transient hits, the clamping voltage is 10V typical — low enough that a 3.3V-rated ASIC or FPGA I/O bank survives the event. Two unidirectional channels protect two signal lines, each referenced to the same rail. The package is SC-74, a 6-pin SOT-457 derivative with 0.95 mm pitch — easy to hand-solder or rework, and the footprint is shared with many other dual-channel TVS arrays. Not rated for automotive or extended-temperature environments. Surface-mount package — SC-74 / SOT-457.","metaTitle":"CM1213A-02SO onsemi Steering Rail-to-Rail TVS – Obsolete","metaDescription":"CM1213A-02SO is obsolete. onsemi Steering (Rail to Rail) TVS, 2 unidirectional channels, 3.3V standoff, 10V clamping, SC-74. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","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":"Obsolete","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":"2","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":"$0.8800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cba42dc8f96b34d1713c5f4501d42b20.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is there a direct replacement or equivalent for the CM1213A-02SO?","answer":"No official replacement is listed in the available records. For a pin-compatible alternative, look for a dual-channel steering TVS array in SC-74 with 3.3V standoff and similar clamping voltage — parts from Semtech, Nexperia, or ST may fit, but you must verify the pinout and capacitance against your signal speed."},{"question":"What is the CM1213A-02SO's listed type and package?","answer":"The type is Steering (Rail to Rail), and the package is SC-74 / SOT-457."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/CM1213A-02SO","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/CM1213A-02SO when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:22:08.251Z","lastPublished":"2026-07-17T20:22:08.251Z","indexable":true}}