{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE91CAHE3_A/C","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE91CAHE3_A-C","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE91CAHE3_A-C","factsUrl":"https://icboms.com/api/mcp/products/1.5KE91CAHE3_A%2FC","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor, Automotive TransZorb® TVS, 1.5KE91CAHE3_A/C, bidirectional, 1500W peak pulse, 77.8V standoff, DO-201AA axial, AEC-Q101.","salesMarkdown":"## Automotive-grade transient suppression for 77.8 V rails The Vishay 1.5KE91CAHE3_A/C is a bidirectional TransZorb® TVS diode from the automotive-grade 1.5KE series, qualified to AEC-Q101 for use in under-hood and chassis-mounted electronics where load-dump and inductive-switching transients threaten downstream silicon. ## What the key ratings mean for the BOM Breakdown voltage (V_BR) is specified at 86.5 V minimum; this is the voltage at which the device starts to avalanche and conduct significant current. The 125 V clamping voltage (V_C) at 12 A peak pulse current (I_PP) defines the maximum voltage the protected load sees during a surge event — a 125 V clamp on a 77.8 V rail gives roughly 60 % headroom before the protected IC's abs-max rating is reached. AEC-Q101 qualification adds the reliability screening (high-temperature reverse bias, temperature cycling, ESD) that production automotive programs require for PPAP submission. Housed in a DO-201AA (DO-27) axial-lead through-hole package, the 1.5KE91CAHE3_A/C is designed for hand-insertion or wave-solder assembly. The axial leads carry the full 12 A surge current without fusing, and the body's glass-passivated junction withstands the thermal shock of soldering. The single-channel layout simplifies PCB routing: one series device between the protected rail and ground. The TransZorb® series carries RoHS compliance and the AEC-Q101 automotive qualification mark. No official pin-compatible second source is recorded on this specific order code; the 1.5KE91CAHE3_A/C is the Vishay-sourced variant for the 77.8 V bidirectional position.","metaTitle":"1.5KE91CAHE3_A/C Vishay TVS, 1500W Bidirectional, DO-201AA","metaDescription":"Vishay 1.5KE91CAHE3_A/C automotive TVS diode, 1500W peak pulse, 77.8V standoff, bidirectional, AEC-Q101, DO-201AA. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"Automotive, AEC-Q101, TransZorb®","Package":"Tape & Reel (TR)","Applications":"Automotive","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":"1.5KE91","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"86.5V","Voltage - Clamping (Max) @ Ipp":"125V","Voltage - Reverse Standoff (Typ)":"77.8V","Current - Peak Pulse (10/1000µs)":"12A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5346","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE91CAHE3_A-C","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE91CAHE3_A-C 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}}