{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MB4M-E3/45","brand":"Vishay","brandSlug":"vishay","productSlug":"MB4M-E3-45","canonicalUrl":"https://icboms.com/vishay/MB4M-E3-45","factsUrl":"https://icboms.com/api/mcp/products/MB4M-E3%2F45","rawCanonicalId":null},"summary":{"shortDescription":"Vishay MB4M-/45, single-phase bridge rectifier, 400 V peak reverse voltage, 500 mA average rectified current, through-hole 4-DIP (0.200\", 5.08 mm) package, -55°C to 150°C junction temperature, ROHS3 compliant, active production.","salesMarkdown":"## 400 V PRV bridge for low-power AC-to-DC rails The MB4M-E3/45: The MB4M-/45: The Vishay MB4M-/45 is a single-phase bridge rectifier in a through-hole 4-DIP package, rated for 400 V peak reverse voltage and 500 mA average rectified output current. It converts AC mains to a pulsed DC rail for low-power supplies, relay coils, and sensor bias circuits. ## What the 400 V PRV and 500 mA Io mean for the BOM The 400 V peak reverse voltage provides headroom for nominal mains voltages. The 500 mA average rectified current covers loads such as relay coils and small fan supplies. Forward voltage is 1 V maximum at 400 mA — conduction loss at full load is about 0.5 W total across the four diodes, which the 4-DIP package can dissipate without a heatsink in still air at 25 °C ambient. ## Active production — no LTB clock ticking For BOM planning, this means no near-term obsolescence risk for a production run.","metaTitle":"MB4M-E3/45 Bridge Rectifier, 400 V, 500 mA, 4-DIP, Active","metaDescription":"Vishay MB4M-E3/45 single-phase bridge rectifier: 400 V PRV, 500 mA Io, -55°C to 150°C junction. Through-hole 4-DIP package. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","Diode Type":"Single Phase","Technology":"Standard","Mounting Type":"Through Hole","Package / Case":"4-DIP (0.200\\\", 5.08mm)","lifecycle_stage":"eol_hot","Operating Temperature":"-55°C ~ 150°C (TJ)","Supplier Device Package":"MBM","Voltage - Peak Reverse (Max)":"400 V","Current - Reverse Leakage @ Vr":"5 µA @ 400 V","Current - Average Rectified (Io)":"500 mA","Voltage - Forward (Vf) (Max) @ If":"1 V @ 400 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.69","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.69000","currency":"USD"},{"qty":10,"price":"$0.60600","currency":"USD"},{"qty":100,"price":"$0.46480","currency":"USD"},{"qty":500,"price":"$0.36740","currency":"USD"},{"qty":1000,"price":"$0.29392","currency":"USD"},{"qty":2000,"price":"$0.28595","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/43d2ec37e607c12643bae817688e6d3f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the MB4M-/45's diode type and package?","answer":"It is a single-phase bridge rectifier in a through-hole 4-DIP (0.200\", 5.08 mm) package, supplied in Tube form."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay/MB4M-E3-45","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay/MB4M-E3-45 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}