{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE82-B","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE82-B","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE82-B","factsUrl":"https://icboms.com/api/mcp/products/1.5KE82-B","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series Zener TVS diode, 1.5KE82-B, 1500W peak pulse power, 70.1V reverse standoff, 118.65V clamping, DO-201AA axial, Bulk.","salesMarkdown":"## 1500 W Zener TVS — what the ratings mean for the BOM The 1.5KE82-B is a 1500 W (1.5 kW) peak pulse power Zener TVS diode from Littelfuse's 1.5KE series, designed to clamp transient overvoltage events on a 70.1 V nominal rail. The 118.65 V maximum clamping voltage at 13.5 A peak pulse current (10/1000 µs waveform) defines the voltage the downstream circuitry must survive — any device rated below that clamp sees the full spike. ## Unidirectional clamping in an axial package A single unidirectional channel means this diode conducts only on positive transients above the breakdown threshold; a reverse-polarity or AC line would need a bidirectional part. The DO-201AA / DO-27 axial leaded package is a through-hole form factor suited for point-to-point wiring or PCB mounting where the leads are bent and soldered — common in power supply inputs, telecom line cards, and industrial control boards where a 1500 W transient absorber is needed without surface-mount reflow. ## Obsolete — sourcing through independent channels Littelfuse lists the 1.5KE82-B as Obsolete. No official successor order code is recorded. The 1.5KE series remains a widely used TVS family, so functionally equivalent parts from the same series (same package, similar standoff voltage) may be available as drop-in alternatives, but no pin-compatible second-source is formally documented. ## Operating envelope and temperature grade Rated for continuous junction temperature from -55°C to 175°C, the 1.5KE82-B covers the full industrial and automotive ambient range. The 1500 W peak pulse power is specified at 25°C; derate above that per the datasheet curve — at 100°C ambient the effective pulse power drops to roughly 75% of the 25°C rating.","metaTitle":"Littelfuse 1.5KE82-B Zener TVS, 1500W, 70.1V Standoff","metaDescription":"Littelfuse 1.5KE82-B Zener TVS diode, 1500W peak pulse power, 70.1V reverse standoff, 118.65V clamping. Obsolete — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Type":"Zener","Series":"1.5KE","Package":"Bulk","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Obsolete","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"73.8V","Voltage - Clamping (Max) @ Ipp":"118.65V","Voltage - Reverse Standoff (Typ)":"70.1V","Current - Peak Pulse (10/1000µs)":"13.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f1ea870152ad203d90f672f2af1c1ed0.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE82-B","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE82-B when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}