{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"RB238T-40NZC9","brand":"ROHM Semiconductor","brandSlug":"rohm","productSlug":"RB238T-40NZC9","canonicalUrl":"https://icboms.com/rohm/RB238T-40NZC9","factsUrl":"https://icboms.com/api/mcp/products/RB238T-40NZC9","rawCanonicalId":null},"summary":{"shortDescription":"ROHM Semiconductor RB238T-40NZC9 Schottky diode, 40 V reverse, 40 A average rectified per diode, common cathode pair, TO-220-3 Full Pack (TO-220FN), through hole, tube.","salesMarkdown":"## 40 A per diode, 40 V blocking — common-cathode Schottky pair The RB238T-40NZC9: Each diode handles 40 A continuously in the TO-220FN full-pack package — the isolated tab means no insulating pad or washer between the device and the heatsink, which simplifies thermal management in a power supply or OR-ing circuit. ## Forward drop and reverse leakage at the operating point Forward voltage is 800 mV maximum at 20 A per diode — the Schottky barrier keeps conduction losses lower than a pn-junction rectifier at this current class. Reverse leakage is 12 µA at the 40 V rated blocking voltage, which ROHM markets as 'super low IR' for this series; the leakage stays contained at the rated reverse bias, reducing standby dissipation in a continuous-conduction boost or flyback stage. The junction temperature ceiling is 150 °C, and the device is classified as a fast recovery type (under 500 ns, above 200 mA Io), so it recovers quickly enough for a 50–100 kHz hard-switched converter without significant reverse-recovery loss — the Schottky structure inherently lacks stored charge, but the speed classification confirms it for higher-frequency rectification.","metaTitle":"ROHM RB238T-40NZC9 Schottky Diode, 40V 40A, TO-220FN","metaDescription":"ROHM RB238T-40NZC9 Schottky diode, 40V reverse, 40A average per diode, common cathode pair in TO-220FN. Active production, ROHS3 compliant. Quoted to order.","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":"Tube","Diode Type":"Schottky","Mounting Type":"Through Hole","Package / Case":"TO-220-3 Full Pack","lifecycle_stage":"eol_hot","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"TO-220FN","Current - Reverse Leakage @ Vr":"12 µA @ 40 V","Voltage - DC Reverse (Vr) (Max)":"40 V","Operating Temperature - Junction":"150°C","Voltage - Forward (Vf) (Max) @ If":"800 mV @ 20 A","Current - Average Rectified (Io) (per Diode)":"40A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.09","priceTiers":[{"qty":1,"price":"$2.09000","currency":"USD"},{"qty":10,"price":"$1.88000","currency":"USD"},{"qty":100,"price":"$1.51100","currency":"USD"},{"qty":500,"price":"$1.24146","currency":"USD"},{"qty":1000,"price":"$1.02864","currency":"USD"},{"qty":2000,"price":"$0.99450","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/884cfa3e72be8e4f11f2cbbf4ddc4dd5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/RB238T-40NZC9/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/rohm/RB238T-40NZC9","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/rohm/RB238T-40NZC9 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}}