{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE36CA","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE36CA","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE36CA","factsUrl":"https://icboms.com/api/mcp/products/1.5KE36CA","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series bidirectional TVS diode, Type Zener, 1.5KE36CA, 1500W peak pulse power, 30.8V reverse standoff, DO-201AA axial package, through-hole.","salesMarkdown":"## Active production — still a current BOM line The 1.5KE36CA: This is a current-production part, not a phase-out or obsolete line that would force a board spin or surplus-channel hunt. At that test condition the device clamps at 49.9V while conducting 30.5A — the clamping voltage is the voltage the downstream silicon actually sees during a surge event. For a 30.8V nominal rail, a 49.9V clamp leaves a 19V margin above the operating voltage, which is typical for protecting 24V or 28V DC buses from transients. The 30.8V reverse standoff voltage means the TVS draws negligible leakage below that level — it does not load the protected line during normal operation. Breakdown starts at 34.2V minimum, so the device stays out of the circuit until a transient pushes the rail above that threshold. ## Bidirectional — one device, both polarities A single bidirectional channel covers both positive and negative transients, which simplifies the BOM for AC signal lines or DC rails that see reverse-polarity events. The symmetrical breakdown characteristic means the clamping voltage is the same in both directions — no need to pair two unidirectional TVS diodes back-to-back. The 175°C TJ(max) is the silicon die limit, not the ambient — derate the peak pulse power above 25°C per the datasheet curve. ## DO-201AA axial — through-hole, standard footprint Housed in the DO-201AA (DO-27) axial-lead package, through-hole mount. The 0.040-inch (1.0mm) diameter leads suit wave-solder or hand-solder assembly. The package body is 9.1mm long — the axial form factor is a standard footprint shared across the 1.5KE series, so a board layout designed for a 1.5KE36A (unidirectional) accepts this bidirectional variant without changes. Available in both Tape & Reel (TR) and Cut Tape (CT) packaging — the reel option suits automated pick-and-place for through-hole insertion, while cut tape works for prototype builds and small-batch production.","metaTitle":"Littelfuse 1.5KE36CA TVS Diode, 1500W, 30.8V Standoff","metaDescription":"Littelfuse 1.5KE36CA bidirectional TVS diode, 1500W peak pulse power, 30.8V reverse standoff, DO-201AA axial package. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Type":"Zener","Series":"1.5KE","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Active","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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"34.2V","Voltage - Clamping (Max) @ Ipp":"49.9V","Voltage - Reverse Standoff (Typ)":"30.8V","Current - Peak Pulse (10/1000µs)":"30.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f1ea870152ad203d90f672f2af1c1ed0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the 1.5KE36CA used for?","answer":"It is a bidirectional transient voltage suppression (TVS) diode for protecting sensitive electronics from voltage spikes. Typical applications include general-purpose circuit protection on DC power rails, signal lines, and data interfaces where the operating voltage is 30.8V or below. The 1500W peak pulse rating handles moderate-energy surges from inductive load switching, ESD events, or lightning-induced transients on outdoor cabling."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE36CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE36CA 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}}