{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6279AHE3_A/C","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1N6279AHE3_A-C","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1N6279AHE3_A-C","factsUrl":"https://icboms.com/api/mcp/products/1N6279AHE3_A%2FC","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor Zener-type unidirectional TVS diode, 1500W peak pulse (10/1000 µs), 30.6V max clamping @ 49A, AEC-Q101 qualified, -55°C to 175°C TJ, DO-201AA axial through-hole.","salesMarkdown":"## What the clamping spec means for your automotive bus The 1N6279AHE3_A/C: The 1.5 kW peak pulse rating defines the surge energy this diode absorbs before it clips — the 30.6 V clamping voltage at 49 A peak pulse current is the clamped voltage the downstream load actually sees when a transient arrives. A TVS that clamps at 30.6 V protects a 24 V nominal rail from spikes that would otherwise stress the input stages of ECUs, sensors, and infotainment modules on the automotive 12 V bus. The reverse standoff voltage of 18.8 V typ means the diode presents a high-impedance path during normal operation — it only transitions into avalanche breakdown when the line voltage exceeds the standoff threshold by the breakdown minimum of 20.9 V, so the protected circuit runs undisturbed at nominal bus voltage. ## AEC-Q101 qualification — this is not a rebranded industrial part AEC-Q101 is the discrete semiconductor stress qualification standard — it applies temperature cycling, HTRB (high-temperature reverse bias), ESD (per AEC-Q101 human-body model), and humidity bias testing that a generic industrial TVS does not carry. The 1.5KE supplier device package designation maps to the DO-201AA (DO-27) axial body — the through-hole form factor allows higher surge-current handling than equivalently rated SMB or SMC surface-mount packages because the lead inductance is lower and the thermal path to the PCB pad is direct. For automotive load-dump and jump-start transients on the battery feed, the through-hole leadframe is the preferred form factor in engine-control and body-control modules. ## Sourcing posture — where this part stands today The DO-201AA through-hole package is the standard automotive TVS form factor; no layout rework is required if you are already running the 1N6279 base number in the same module footprint.","metaTitle":"1N6279AHE3_A/C TVS Diode, 1.5 kW, 30.6 V Clamping, AEC-Q101","metaDescription":"Vishay 1N6279AHE3_A/C unidirectional TVS diode, 1500W peak pulse, 30.6V clamping, AEC-Q101 qualified for automotive. Active — quoted to order.","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":"1N6279","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"20.9V","Voltage - Clamping (Max) @ Ipp":"30.6V","Voltage - Reverse Standoff (Typ)":"18.8V","Current - Peak Pulse (10/1000µs)":"49A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5346","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N6279AHE3_A%2FC/alternatives.json"},"ai":{"faq":[{"question":"What does AEC-Q101 mean for this part — is it truly automotive-qualified?","answer":"AEC-Q101 is the discrete semiconductor qualification standard, not a marketing label. It requires specific stress tests — temperature cycling, HTRB, ESD human-body model, and humidity bias — that an industrial-grade TVS does not necessarily pass. The -55°C to 175°C junction temperature range and the automotive series designation on the record confirm this part is positioned for ECU, BCM, and sensor protection modules rather than general-purpose industrial use."},{"question":"What is the difference between a Zener and a TransZorb® type TVS?","answer":"Both clamp voltage transients by avalanche breakdown, but TransZorb® is Vishay's proprietary construction that handles higher peak pulse power in the same package by improving the surge-energy absorption per event. The 1.5 kW rating in the DO-201AA body is the TransZorb® advantage over a standard Zener rated at the same standoff voltage — for load-dump and ESD protection on the automotive battery line, the higher peak pulse rating is the deciding spec."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1N6279AHE3_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/1N6279AHE3_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}}