{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"RB218NS-40TL","brand":"ROHM Semiconductor","brandSlug":"rohm","productSlug":"RB218NS-40TL","canonicalUrl":"https://icboms.com/rohm/RB218NS-40TL","factsUrl":"https://icboms.com/api/mcp/products/RB218NS-40TL","rawCanonicalId":null},"summary":{"shortDescription":"ROHM Semiconductor RB218NS-40TL Schottky diode, 40 V reverse, 20 A average rectified per diode, 1 pair common cathode, TO-263-3 (D²Pak) surface mount, fast recovery <= 500 ns.","salesMarkdown":"## Package and board integration — TO-263-3 (D²Pak) The RB218NS-40TL comes in a TO-263-3 (D²Pak) surface-mount package with a large exposed copper tab on the bottom. ## Headline ratings — 40 V reverse, 20 A per diode This is a dual Schottky rectifier in a common-cathode configuration, rated 40 V DC reverse maximum and 20 A average rectified current per diode. The common-cathode pair is wired for OR-ing or center-tapped full-wave rectification — the two anodes are independent, so each half of the pair handles its own rail or winding phase. Forward voltage is 770 mV maximum at 10 A per diode — that is the conduction loss at half the rated current. Reverse leakage is 5 µA at 40 V, which the manufacturer flags as 'SUPER LOW IR' — a meaningful advantage in battery-powered or standby circuits where leakage current drains the rail when the diode is blocking. ## Switching speed and thermal limits Classified as fast recovery (<= 500 ns, > 200 mA Io), though as a Schottky the switching speed is inherently limited by junction capacitance rather than stored charge — the recovery classification confirms it is suitable for switching frequencies in the tens to low hundreds of kHz without significant reverse-recovery losses. The TO-263-3 tab must be soldered to a sufficient copper area — a typical two-ounce copper pour of at least 600 mm² keeps the junction rise within safe margin at 20 A continuous per diode.","metaTitle":"ROHM RB218NS-40TL Schottky Diode, 40V, 20A, TO-263-3","metaDescription":"ROHM RB218NS-40TL Schottky diode, 40 V reverse, 20 A per diode, common-cathode pair in TO-263-3 (D²Pak). Active, ROHS3 compliant. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"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","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"LPDS","Current - Reverse Leakage @ Vr":"5 µA @ 40 V","Voltage - DC Reverse (Vr) (Max)":"40 V","Operating Temperature - Junction":"150°C","Voltage - Forward (Vf) (Max) @ If":"770 mV @ 10 A","Current - Average Rectified (Io) (per Diode)":"20A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.58","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.58000","currency":"USD"},{"qty":10,"price":"$1.41800","currency":"USD"},{"qty":100,"price":"$1.13960","currency":"USD"},{"qty":500,"price":"$0.93624","currency":"USD"},{"qty":1000,"price":"$0.77575","currency":"USD"},{"qty":2000,"price":"$0.75000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/1297214c2e923a37c732037c655a2b31.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is RB218NS-40TL's listed speed classification?","answer":"The RB218NS-40TL is classified as fast recovery (<= 500 ns, > 200 mA Io). As a Schottky diode, the switching speed is limited by junction capacitance rather than stored charge, making it suitable for high-frequency rectification without significant reverse-recovery losses."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/rohm/RB218NS-40TL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/rohm/RB218NS-40TL 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}}