{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE56CA-E3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE56CA-E3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE56CA-E3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE56CA-E3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® TVS, bidirectional Zener, 1.5KE56CA-/51, 1500W peak pulse, 47.8V standoff, DO-201AA axial through-hole, Bulk.","salesMarkdown":"## What this 1500W bidirectional TVS actually protects The 1.5KE56CA-E3/51: Its 47.8V reverse standoff voltage means it sits across a 48V nominal rail and stays out of the way until a transient exceeds 53.2V breakdown — then it clamps at 77V maximum, shunting up to 19.5A of surge current to ground. Bidirectional construction means a single device protects both polarities — useful on AC signal lines or DC rails where reverse polarity is a risk. Housed in a DO-201AA (DO-27) axial-lead package, this is a through-hole part. The 1.5KE body diameter is about 5.3mm with 25.4mm lead spacing — it drops into standard 0.100-inch pitch holes on a PCB or terminal block. Bulk packaging means it ships loose in a bag or tube, not on a reel; factor that into your pick-and-place planning if you're hand-loading prototypes or low-volume builds. Vishay has marked the 1.5KE56CA-/51 as Last Buy. That means the manufacturer is winding down production — there is a final order window, after which the part will no longer be manufactured. For existing designs, this is the time to secure lifetime buy quantities or qualify a replacement.","metaTitle":"Vishay 1.5KE56CA-E3/51 TransZorb TVS, 1500W, 47.8V Standoff","metaDescription":"Vishay 1.5KE56CA-E3/51 bidirectional TransZorb TVS diode, 1500W peak pulse, 47.8V standoff, DO-201AA. Last Buy — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Last Buy","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"TransZorb®","Package":"Bulk","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Last Time Buy","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE56","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"53.2V","Voltage - Clamping (Max) @ Ipp":"77V","Voltage - Reverse Standoff (Typ)":"47.8V","Current - Peak Pulse (10/1000µs)":"19.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8847","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/1.5KE56CA-E3-51","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/1.5KE56CA-E3-51 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}}