{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMBJ30CA-13","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"SMBJ30CA-13","canonicalUrl":"https://icboms.com/diodes-inc/SMBJ30CA-13","factsUrl":"https://icboms.com/api/mcp/products/SMBJ30CA-13","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated SMBJ series bidirectional TVS diode, SMBJ30CA-13, 30V reverse standoff, 48.4V clamp, 600W peak pulse power, DO-214AA SMB package.","salesMarkdown":"## Clamping voltage and protection rail fit The SMBJ30CA-13: That 48.4 V clamp is the ceiling the protected circuitry must survive — if the downstream silicon's abs-max rating is below that, the TVS absorbs the overvoltage before it reaches the load. Rated for 600 W peak pulse power, the device handles the energy of a single high-energy surge typical of inductive load switching or lightning-induced transients on outdoor cabling. The 10/1000 µs waveform is the industry-standard test pulse for telecom and industrial surge immunity per IEC 61000-4-5. ## Package and board integration The SMB package body is larger than the smaller SMA (DO-214AC) variant, which means the same 600 W pulse rating runs cooler on the board — the extra copper area under the package improves thermal impedance to the PCB. The wide thermal margin means the TVS can sit close to a hot regulator or motor driver without derating its surge capability. ## Bidirectional clamping for AC and bipolar lines This makes it the natural choice for AC signal lines, differential data pairs (RS-485, CAN), or any rail that swings above and below ground. A unidirectional part on the same rail would require two devices back-to-back or would leave one polarity unprotected — the bidirectional package solves that with one component.","metaTitle":"Diodes Inc SMBJ30CA-13 TVS Diode, 600W, Bidirectional","metaDescription":"SMBJ30CA-13 bidirectional TVS diode, 30V standoff, 48.4V clamp, 600W peak pulse. Active production. Request quote for SMBJ30CA-13 pricing and availability.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Diodes Incorporated","Type":"Zener","Series":"SMBJ","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AA, SMB","lifecycle_stage":"eol_hot","Power - Peak Pulse":"600W","Base Product Number":"SMBJ30","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMB","Voltage - Breakdown (Min)":"33.3V","Voltage - Clamping (Max) @ Ipp":"48.4V","Voltage - Reverse Standoff (Typ)":"30V","Current - Peak Pulse (10/1000µs)":"12.4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/5082cff9e06e9e3934f006f5710ece61.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order SMBJ30CA-13 or check current pricing?","answer":"The SMBJ30CA-13 is an active-production part from Diodes Incorporated."},{"question":"What package does SMBJ30CA-13 come in?","answer":"It is available on tape and reel (TR) or cut tape (CT) for prototyping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diodes-inc/SMBJ30CA-13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diodes-inc/SMBJ30CA-13 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}}