{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE440CA R0G","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5KE440CA-R0G","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE440CA-R0G","factsUrl":"https://icboms.com/api/mcp/products/1.5KE440CA%20R0G","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor 1.5KE series bidirectional TVS diode, 1.5KE440CA R0G, 1500W peak pulse power, 602V clamping, 376V standoff, DO-201AA axial package, tape and reel.","salesMarkdown":"## Bidirectional clamping in a single axial device The 1.5KE440CA R0G: On an AC signal line or a bipolar DC rail, one part replaces two unidirectional TVS diodes back-to-back, saving board space and bill-of-materials line items. The reverse standoff voltage is 376 V, and breakdown is guaranteed at a minimum of 418 V. The protected rail should sit below 376 V under normal operation; the device remains transparent until a transient drives the line above the breakdown threshold. This is the voltage the downstream circuitry must survive — if the protected equipment's dielectric withstand is below 602 V, a second stage or a higher-power TVS is needed. ## 1500 W peak pulse — sizing against the transient energy Rated for 1500 W of peak pulse power dissipation under the standard 10/1000 µs exponential waveform, the 1.5KE440CA R0G handles the energy from a typical inductive-load dump or lightning-induced surge on a 376 V rail. The 2.5 A peak pulse current figure is the companion rating — at the clamping voltage of 602 V, the product of current and voltage equals the 1500 W rating within the waveform's time constant. The junction temperature range spans -55°C to 175°C, which covers automotive under-hood environments and industrial enclosures near hot machinery. The 175°C upper limit means the device can absorb repetitive pulses without derating the peak power as aggressively as a 150°C-rated part. ## Through-hole DO-201 package — board-fit and assembly Housed in a DO-201AA (also known as DO-27) axial-lead package, the 1.5KE440CA R0G is a through-hole device. The axial body and wire leads suit point-to-point wiring, terminal block mounting, or wave-soldered PCB layouts where the hole pattern and lead bend radius match the existing footprint. Tape-and-reel packaging is available for automated lead-forming and insertion equipment, though the axial form factor is less throughput-efficient than a surface-mount DO-214AB package for high-volume pick-and-place lines. ## No power-line protection rating — secondary-side use only The Power Line Protection field is marked No, which means this TVS is not rated or certified for primary AC mains protection per IEC 61643-11 or UL 1449. It is intended for secondary-side DC bus, signal line, or low-voltage AC transient suppression inside the equipment enclosure, not for the service entrance or branch circuit. General Purpose application classification confirms the part is suitable for a broad range of industrial, telecom, and automotive circuits where a 376 V standoff and 602 V clamp fit the rail voltage. No special screening or military qualification is claimed on this standard catalog variant.","metaTitle":"1.5KE440CA R0G TVS Diode, 1.5kW, 602V Clamp, Bidirectional","metaDescription":"Taiwan Semiconductor 1.5KE440CA R0G bidirectional TVS diode, 1500W peak pulse, 602V clamping, DO-201 package. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Taiwan Semiconductor Corporation","Type":"Zener","Series":"1.5KE","Package":"Tape & Reel (TR)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE440","Operating Temperature":"-55°C ~ 175°C (TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"418V","Voltage - Clamping (Max) @ Ipp":"602V","Voltage - Reverse Standoff (Typ)":"376V","Current - Peak Pulse (10/1000µs)":"2.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a688563676897fea683fa9d5a5542f4e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE440CA%20R0G/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE440CA-R0G","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/taiwan-semiconductor-corporation/1.5KE440CA-R0G 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}}