{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE33CA-E3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE33CA-E3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE33CA-E3-73","factsUrl":"https://icboms.com/api/mcp/products/1.5KE33CA-E3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® TVS diode, Type Zener, Bidirectional, 1.5KE33CA-/73, 1500W peak pulse, 28.2V standoff, DO-201AA axial, Tape & Box.","salesMarkdown":"## 1500 W peak pulse — clamping a 28.2 V rail The 1.5KE33CA-E3/73: Breakdown voltage starts at 31.4 V minimum, so the device stays transparent below the rail until a surge pushes the line past that threshold. It is a general-purpose part for through-hole board layouts where axial-lead insertion is the assembly method. ## Bidirectional clamping for ungrounded signal pairs A single bidirectional channel means the same device clamps positive and negative transients symmetrically — useful on balanced signal lines or DC rails where polarity reversal is a risk, without needing two diodes back-to-back. The 45.7 V clamp voltage leaves margin for a 24 V nominal bus that can ride through a 36 V load-dump transient before the TVS starts conducting hard. The junction temperature range spans -55°C to 175°C, covering industrial enclosure and outdoor telecom environments. The through-hole DO-201AA (DO-27) axial package solders into a 1.0 mm diameter hole on a standard PCB or terminal block — the lead bend radius matters for stress relief in high-vibration applications. ## Active production — no last-time-buy pressure The 1.5KE33CA-/73 carries an active lifecycle status. The TransZorb series is a long-running Vishay line, so the part remains available through authorized distribution without an imminent EOL notice.","metaTitle":"1.5KE33CA-E3/73 Vishay TransZorb TVS, 1500W, 28.2V","metaDescription":"Vishay 1.5KE33CA-E3/73 bidirectional TVS diode, 1500W peak pulse, 28.2V standoff, 45.7V clamp. Active production, through-hole DO-201AA. Request quote.","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":"TransZorb®","Package":"Tape & Box (TB)","Applications":"General Purpose","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":"1.5KE33","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"31.4V","Voltage - Clamping (Max) @ Ipp":"45.7V","Voltage - Reverse Standoff (Typ)":"28.2V","Current - Peak Pulse (10/1000µs)":"32.8A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4460","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/1.5KE33CA-E3-73","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/1.5KE33CA-E3-73 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}}