{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE30CA","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"1.5KE30CA","canonicalUrl":"https://icboms.com/stmicroelectronics/1.5KE30CA","factsUrl":"https://icboms.com/api/mcp/products/1.5KE30CA","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics 1.5KE30CA TRANSIL™ TVS diode, bidirectional, 1500 W peak pulse power, 28.5 V breakdown, 53.5 V clamping, DO-201AA axial package.","salesMarkdown":"The STMicroelectronics 1.5KE30CA is a 1500 W bidirectional TVS diode from the 1.5KE series, designed to clamp voltage transients on power and signal lines. It is a through-hole device in a DO-201AA axial package, rated for a peak pulse current of 187 A under the 8/20 µs waveform. The 28.5 V minimum breakdown voltage sets the threshold where the diode starts conducting — below that, the protected circuit sees the full transient. The 53.5 V clamping voltage is the maximum the load will see during a surge; if your downstream components (MOSFETs, ICs) have a lower absolute maximum rating, you need a lower-voltage TVS or additional protection. The 1500 W peak pulse power (1.5 kW) defines the energy the device can absorb in a single 10/1000 µs pulse — a 24 V supply rail with a 100 A surge would exceed this, so check your transient energy budget. It replaces two unidirectional diodes in series, saving board space and parts count. The 1450 pF capacitance at 1 MHz is high enough that it may load high-speed data lines — keep it on power rails or low-frequency signals unless you verify signal integrity.","metaTitle":"1.5KE30CA STMicroelectronics TVS Diode, 1500 W","metaDescription":"1.5KE30CA bidirectional TVS diode from STMicroelectronics, 1500 W peak pulse power, 28.5 V breakdown, 53.5 V clamping, DO-201 package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"STMicroelectronics","Type":"Zener","Series":"1.5KE, TRANSIL™","Package":"Cut Tape (CT); Tape & Box (TB)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE30","Operating Temperature":"-","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"1450pF @ 1MHz","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"28.5V","Voltage - Clamping (Max) @ Ipp":"53.5V","Voltage - Reverse Standoff (Typ)":"25.6V","Current - Peak Pulse (10/1000µs)":"187A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/572f99690aeb2b0f302ed9cdcfd976ec.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE30CA/alternatives.json"},"ai":{"faq":[{"question":"Is 1.5KE30CA bidirectional?","answer":"Yes, it is a single bidirectional channel, clamping both positive and negative transients equally."},{"question":"Can I use 1.5KE30A instead of 1.5KE30CA?","answer":"The 1.5KE30A is the unidirectional version of the same 1.5KE30 voltage rating. If your circuit needs protection against transients of only one polarity, the unidirectional part works; for bipolar or AC lines, stick with the bidirectional CA suffix."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/1.5KE30CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/1.5KE30CA 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}}