{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"RFN20NS3STL","brand":"ROHM Semiconductor","brandSlug":"rohm","productSlug":"RFN20NS3STL","canonicalUrl":"https://icboms.com/rohm/RFN20NS3STL","factsUrl":"https://icboms.com/api/mcp/products/RFN20NS3STL","rawCanonicalId":null},"summary":{"shortDescription":"ROHM RFN20NS3STL, standard fast recovery diode, 350 V reverse, 20 A average rectified, 35 ns trr, TO-263-3 (D2Pak) surface mount, LPDS package, ROHS3 compliant, active lifecycle.","salesMarkdown":"## 20 A, 350 V fast recovery diode — what the 35 ns trr buys you This trr figure places it in the fast-recovery class — under 500 ns at currents above 200 mA — making it suitable for continuous-conduction-mode PFC boost stages and the output rectification stage of a 200-240 VAC input SMPS, where switching losses at 50-100 kHz are dominated by the diode's recovery charge. ## Forward drop and leakage — the thermal budget drivers Maximum forward voltage is 1.35 V at 20 A. Reverse leakage is 10 µA at 350 V — low enough that the leakage contribution to the junction temperature rise is negligible at 150°C maximum junction temperature, but the leakage curve at elevated temperature should be reviewed against the actual operating VR for designs that push close to the 350 V ceiling. ## Package and footprint — D2Pak with LPDS variant code The RFN20NS3STL is supplied in a TO-263-3 (D2Pak) surface-mount package, with ROHM's internal supplier device package code LPDS. The D2Pak footprint is a standard high-current power package with a large copper tab for heatsinking. The LPDS code indicates a specific lead-frame or mold-compound variant — the land pattern should match the standard TO-263-3 pad layout, but the exact package drawing should be used to confirm the tab dimensions and lead coplanarity before committing the PCB. It is ROHS3 compliant, clearing EU regulatory requirements for new designs.","metaTitle":"RFN20NS3STL 350V 20A Fast Recovery Diode, 35 ns trr","metaDescription":"ROHM RFN20NS3STL: 350V, 20A standard fast recovery diode with 35 ns trr. TO-263 (D2Pak) surface mount, 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":"Standard","Mounting Type":"Surface Mount","Package / Case":"TO-263-3, D²Pak (2 Leads + Tab), TO-263AB","lifecycle_stage":"eol_hot","Supplier Device Package":"LPDS","Reverse Recovery Time (trr)":"35 ns","Current - Reverse Leakage @ Vr":"10 µA @ 350 V","Voltage - DC Reverse (Vr) (Max)":"350 V","Current - Average Rectified (Io)":"20A","Operating Temperature - Junction":"150°C","Voltage - Forward (Vf) (Max) @ If":"1.35 V @ 20 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.11","priceTiers":[{"qty":1,"price":"$3.11000","currency":"USD"},{"qty":10,"price":"$2.79300","currency":"USD"},{"qty":100,"price":"$2.24490","currency":"USD"},{"qty":500,"price":"$1.84442","currency":"USD"},{"qty":1000,"price":"$1.52823","currency":"USD"},{"qty":2000,"price":"$1.47750","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/c8eceffc9a5450fe106745b16d9b6c6e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/RFN20NS3STL/alternatives.json"},"ai":{"faq":[{"question":"What is the reverse recovery time of RFN20NS3STL?","answer":"The RFN20NS3STL has a reverse recovery time of 35 ns, which places it in the fast-recovery class (under 500 ns at currents above 200 mA). This 35 ns trr enables operation in continuous-conduction-mode PFC boost stages and SMPS output rectification at switching frequencies up to 100 kHz with manageable recovery losses."},{"question":"Can RFN20NS3STL be used in a high-speed switching power supply?","answer":"Yes. The 35 ns reverse recovery time makes the RFN20NS3STL suitable for the boost diode in a continuous-conduction-mode PFC stage and for output rectification in LLC or phase-shift full-bridge converters operating at 50-100 kHz. The 350 V reverse rating covers the 200-240 VAC input range with margin. The forward drop of 1.35 V at 20 A should be factored into the thermal design for the expected average current."},{"question":"Is RFN20NS3STL RoHS compliant?","answer":"Yes, the RFN20NS3STL is ROHS3 compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/rohm/RFN20NS3STL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/rohm/RFN20NS3STL when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}