{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE400A_R2_00001","brand":"Panjit International Inc.","brandSlug":"panjit-international-inc","productSlug":"1.5KE400A_R2_00001","canonicalUrl":"https://icboms.com/panjit-international-inc/1.5KE400A_R2_00001","factsUrl":"https://icboms.com/api/mcp/products/1.5KE400A_R2_00001","rawCanonicalId":null},"summary":{"shortDescription":"Panjit International Inc. 1.5KE series, Type Zener, 1.5KE400A_R2_00001 TVS diode, Through Hole, DO-201AE Axial, 1500W peak pulse power, 342V reverse standoff, 548V clamping voltage.","salesMarkdown":"## 1.5kW surge clamp for 342V rails The 1.5KE400A_R2_00001: Its unidirectional construction (1 channel) means it protects a single polarity line — the cathode band on the DO-201AE axial package marks the protected side, and the anode connects to ground. The 380V minimum breakdown voltage and 548V maximum clamping at 2.8A peak pulse current (10/1000µs waveform) define the protection window: the rail must stay below 342V during normal operation, and the TVS will begin conducting at 380V, holding the transient to 548V or less at the rated surge current. ## Obsolete — sourcing through independent channels Panjit has marked the 1.5KE400A_R2_00001 as obsolete. No board spin is required for a like-for-like swap. ## What the clamping numbers mean for your rail The 342V reverse standoff voltage is the maximum continuous DC voltage the TVS can withstand without significant leakage — a 300V nominal bus with 10% tolerance sits at 330V, which is below this threshold. The 380V minimum breakdown provides a 38V guard band before the device starts clamping, preventing nuisance triggering from normal switching transients. At the rated 2.8A peak pulse current (10/1000µs waveform), the clamping voltage reaches 548V maximum. This is the voltage the protected equipment must survive during the surge event. For a 342V rail, the 548V clamp represents a 60% overshoot — downstream components should be rated for at least 600V transient withstand to maintain margin. Derating applies at elevated temperatures — at 175°C junction, the power handling drops to approximately 25% of the 25°C rating, per the standard thermal derating curve for axial TVS diodes.","metaTitle":"Panjit 1.5KE400A_R2_00001 TVS Diode, 1.5kW, 548V Clamp","metaDescription":"Obsolete Panjit 1.5KE400A_R2_00001 unidirectional TVS, 1500W peak pulse, 342V standoff, 548V clamp. Sourced to order via independent distribution against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Panjit International Inc.","Type":"Zener","Series":"1.5KE","Packaging":"Tape & Reel (TR) Cut Tape (CT)","Part Status":"Active","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AE, Axial","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE","Operating Temperature":"-65°C ~ 175°C (TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201AE","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":"$0.9400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/adbd088802f505fd96ec586b80ab0f5a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE400A_R2_00001/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to 1.5KE400A_R2_00001?","answer":"The 1.5KE series includes other voltage variants in the same DO-201AE package, but a direct functional replacement requires matching the 342V standoff, 380V breakdown, and 548V clamp specifications. Any alternative must be verified against the original BOM requirements before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/panjit-international-inc/1.5KE400A_R2_00001","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/panjit-international-inc/1.5KE400A_R2_00001 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}