{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE82CA","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"1.5KE82CA","canonicalUrl":"https://icboms.com/stmicroelectronics/1.5KE82CA","factsUrl":"https://icboms.com/api/mcp/products/1.5KE82CA","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics 1.5KE82CA, TRANSIL™ series, bidirectional TVS diode, 1500W peak pulse power, 70.1V reverse standoff, 77.9V breakdown, 146V clamping, DO-201AA/DO-27 axial, through hole.","salesMarkdown":"## A 1500W bidirectional transient suppressor — what it protects and where it goes The STMicroelectronics 1.5KE82CA is a bidirectional Zener TVS diode from the 1.5KE TRANSIL™ family, rated for 1500W peak pulse power (10/1000µs waveform). It clamps transients at 146V maximum, with a reverse standoff voltage of 70.1V and a minimum breakdown of 77.9V. This is a through-hole part in a DO-201AA / DO-27 axial-lead package, meant for general-purpose overvoltage protection on AC or DC power rails, signal lines, and industrial control inputs where bidirectional clamping is needed. For new designs or replacement needs, the 1.5KE series includes other voltage variants that may fit, but no direct pin-compatible replacement is cited in the record. Sourcing is through independent distribution; we can quote against an RFQ for available inventory, but expect limited stock and no factory lead time. ## Key ratings at a glance Peak pulse power: 1500W (1.5kW) ensures it can handle substantial surge energy from lightning or inductive load switching. Reverse standoff voltage: 70.1V — the maximum DC or AC peak voltage the protected line can carry without the diode conducting. Breakdown voltage: 77.9V minimum — where clamping starts. Clamping voltage: 146V maximum at rated peak pulse current — the voltage the protected circuitry must survive. Capacitance: 675pF at 1MHz — high enough to affect fast digital signals; check signal integrity on high-speed lines. ## Through-hole axial package — hand-solder friendly The DO-201AA / DO-27 axial-lead package is through-hole, easy to hand-solder and replace in rework. No special reflow profile needed. The leads are tin-plated copper; standard 1.0mm diameter holes on a 0.4 inch pitch work for most protoboards. Keep the lead length short to minimize inductance and maintain clamping speed.","metaTitle":"STMicroelectronics 1.5KE82CA TVS Diode, 1500W Bidirectional","metaDescription":"STMicroelectronics 1.5KE82CA bidirectional TVS diode, 1500W peak pulse power, 70.1V standoff, 146V clamping. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","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":"Obsolete","lifecycle_stage":"eol_hot","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE","Operating Temperature":"-","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"675pF @ 1MHz","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"77.9V","Voltage - Clamping (Max) @ Ipp":"146V","Voltage - Reverse Standoff (Typ)":"70.1V","Current - Peak Pulse (10/1000µs)":"69A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/572f99690aeb2b0f302ed9cdcfd976ec.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE82CA/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for 1.5KE82CA?","answer":"No direct pin-compatible replacement is listed in the official record. The 1.5KE series includes other voltage variants (e.g., 1.5KE75CA, 1.5KE100CA) that share the same package and power rating but different clamping thresholds. For a drop-in substitute, check the 1.5KE82CA's voltage specs against other bidirectional 1500W TVS diodes from Littelfuse, Vishay, or ON Semiconductor. Submit an RFQ and we can cross-reference available alternatives."},{"question":"What is the capacitance of 1.5KE82CA?","answer":"The capacitance is 675pF measured at 1MHz. This is relatively high; it will load high-speed data lines (e.g., Ethernet, USB) and may degrade signal edges. For such applications, consider a lower-capacitance TVS (e.g., <10pF) in series with a steering diode array."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/1.5KE82CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/1.5KE82CA when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T14:58:48.759Z","lastPublished":"2026-07-16T14:58:48.759Z","indexable":true}}