{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE400AHA0G","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5KE400AHA0G","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE400AHA0G","factsUrl":"https://icboms.com/api/mcp/products/1.5KE400AHA0G","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor 1.5KE series, Automotive Zener TVS Diode, 1.5KE400AHA0G, 1500W peak pulse, 342V reverse standoff, 548V clamping, AEC-Q101, DO-201, Through Hole.","salesMarkdown":"## What an AEC-Q101 Grade Means for the 342V Rail The 1.5KE400AHA0G is an automotive-grade Zener TVS diode from the 1.5KE series, qualified to AEC-Q101 — the discrete semiconductor counterpart to AEC-Q100. This means the device has passed the full suite of automotive stress tests: high-temperature reverse bias, temperature cycling, and ESD robustness up to the human-body-model level specified in the standard. For a procurement engineer auditing a BOM, the AEC-Q101 certificate and PPAP documentation are the deliverables that clear the component for use in underhood or cabin-domain ECU modules where a field failure creates a safety recall path. ## Protection Envelope: 342V Standoff, 548V Clamp, 2.8A Peak When a transient exceeds the breakdown threshold (380V minimum), the diode clamps the surge to 548V maximum while shunting 2.8A of peak pulse current (10/1000µs waveform). This is the figure the test engineer uses to validate the margin against the system's surge-withstand specification, typically IEC 61000-4-5 or ISO 7637-2 pulse levels. ## Through-Hole DO-201 Package and Board-Level Fit The DO-201AA (DO-27) axial-lead through-hole package mates into plated through-holes on a PCB or terminal block. The package body is rated for the full 175°C junction temperature, so the solder joint temperature during wave or hand-soldering must not exceed the component's peak profile — standard 260°C for 10 seconds per JEDEC J-STD-020 applies. The axial leads suit point-to-point wiring on a terminal strip or a board-level socket, common in automotive power distribution boxes and industrial control panels where a through-hole joint survives vibration better than a surface-mount solder fillet.","metaTitle":"1.5KE400AHA0G TVS Diode, 1500W, 342V Standoff, AEC-Q101","metaDescription":"Taiwan Semiconductor 1.5KE400AHA0G automotive Zener TVS, 1500W peak pulse, 342V reverse standoff, 548V clamping, AEC-Q101 qualified, DO-201.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Taiwan Semiconductor Corporation","Type":"Zener","Grade":"Automotive","Series":"1.5KE","Package":"Tape & Box (TB)","Applications":"-","Mounting Type":"Through Hole","Qualification":"AEC-Q101","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE400","Operating Temperature":"-55°C ~ 175°C (TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"380V","Voltage - Clamping (Max) @ Ipp":"548V","Voltage - Reverse Standoff (Typ)":"342V","Current - Peak Pulse (10/1000µs)":"2.8A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3617","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4cf5a62525b5922ba8bb76e5ce39a88b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does Taiwan Semiconductor provide for 1.5KE400AHA0G?","answer":"The part carries AEC-Q101 qualification documentation, which includes the PPAP package required for automotive OEM submissions. RoHS and REACH compliance status is standard for the series; the specific compliance certificate is included with the lot traceability documentation provided at the time of order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE400AHA0G","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/1.5KE400AHA0G 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}}