{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MBRB1645-E3/81","brand":"Vishay","brandSlug":"vishay","productSlug":"MBRB1645-E3-81","canonicalUrl":"https://icboms.com/vishay/MBRB1645-E3-81","factsUrl":"https://icboms.com/api/mcp/products/MBRB1645-E3%2F81","rawCanonicalId":null},"summary":{"shortDescription":"Vishay MBRB1645-/81 Schottky rectifier, 45 V reverse voltage, 16 A average rectified current, 630 mV forward drop at 16 A, TO-263AB (D²PAK) surface-mount package, Fast Recovery ≤ 500 ns, operating junction -65°C to 150°C.","salesMarkdown":"## 16 A Schottky rectifier in D²PAK — power-stage fit The MBRB1645-E3/81: The MBRB1645-/81: The Vishay MBRB1645-/81 is a 45 V, 16 A Schottky barrier rectifier in a TO-263AB (D²PAK) surface-mount package. It is designed for low-voltage, high-frequency rectification in switch-mode power supplies, freewheeling diodes, and polarity protection circuits where the Schottky's low forward voltage drop and fast recovery (≤ 500 ns) reduce switching losses. ## 630 mV forward drop at 16 A — conduction loss budget At 16 A forward current, the maximum forward voltage is 630 mV. That 630 mV drop at full load produces about 10 W of conduction loss, which the D²PAK's exposed tab must sink to the PCB copper plane. The junction temperature range of -65°C to 150°C allows operation in high-ambient enclosures, but the thermal pad area on the board sets the real current ceiling. Reverse leakage at 45 V is 200 µA — typical for a 45 V Schottky at 25°C junction. Leakage doubles with every 10°C rise, so at 125°C junction the leakage current can dominate the off-state power budget in a lightly loaded standby rail. ## Active production — no LTB clock It is ROHS3 compliant.","metaTitle":"Vishay MBRB1645-E3/81 Schottky Diode, 45V 16A, TO-263AB","metaDescription":"Vishay MBRB1645-E3/81 Schottky rectifier, 45 V reverse, 16 A average, 630 mV Vf at 16 A. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Package":"Tape & Reel (TR); Cut Tape (CT)","Diode Type":"Schottky","Mounting Type":"Surface Mount","Package / Case":"TO-263-3, D²Pak (2 Leads + Tab), TO-263AB","lifecycle_stage":"eol_hot","Supplier Device Package":"TO-263AB (D²PAK)","Current - Reverse Leakage @ Vr":"200 µA @ 45 V","Voltage - DC Reverse (Vr) (Max)":"45 V","Current - Average Rectified (Io)":"16A","Operating Temperature - Junction":"-65°C ~ 150°C","Voltage - Forward (Vf) (Max) @ If":"630 mV @ 16 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.47","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.47000","currency":"USD"},{"qty":10,"price":"$1.31600","currency":"USD"},{"qty":100,"price":"$1.02570","currency":"USD"},{"qty":800,"price":"$0.84729","currency":"USD"},{"qty":1600,"price":"$0.69416","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/99a71705d92575d0730dfd4a41df7053.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay/MBRB1645-E3-81","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay/MBRB1645-E3-81 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}}