{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STTH506B-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STTH506B-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STTH506B-TR","factsUrl":"https://icboms.com/api/mcp/products/STTH506B-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STTH506B-TR, 600 V, 5 A Ultrafast Diode, 50 ns trr, 1.85 Vf @ 5 A, DPAK (TO-252), Surface Mount, ROHS3.","salesMarkdown":"## 600 V, 5 A ultrafast rectifier in DPAK Its 50 ns reverse recovery time places it in the fast-recovery class for hard-switching topologies like PFC boost stages, flyback clamps, and output rectification in telecom and industrial power supplies. ## Switching loss and thermal budget The 50 ns trr at 600 V reverse voltage is the controlling parameter for turn-off losses in continuous-conduction-mode PFC. At a 100 kHz switching frequency, each turn-off event dissipates roughly Vr × Ir × trr/2 — the 50 ns window keeps the loss per cycle under 75 µJ at rated current, which means the DPAK copper pad on a standard 1 oz pour can handle the thermal load without forced air. Forward voltage is 1.85 V max at 5 A and 25 °C junction. Conduction loss at full rated current is 9.25 W, but the actual junction temperature will settle higher — the 175 °C max junction rating gives headroom for the Vf positive temperature coefficient to balance the thermal loop. ## Reverse leakage at high line Reverse leakage is 5 µA at 600 V, 25 °C. Leakage doubles roughly every 10 °C junction rise, so at 125 °C expect about 80 µA — still negligible for most 5 A designs, but worth checking if the diode sits across a high-impedance node in a no-load standby rail. ## Active production, no LTB shadow ROHS3 compliant, so it clears EU and lead-free assembly requirements without a waiver.","metaTitle":"STTH506B-TR 600V 5A Ultrafast Diode, 50ns trr, DPAK","metaDescription":"STTH506B-TR 600V 5A ultrafast diode with 50ns trr in DPAK. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"-","Package":"Tape & Reel (TR) Cut Tape (CT)","Technology":"Standard","Mounting Type":"Surface Mount","Package / Case":"TO-252-3, DPak (2 Leads + Tab), SC-63","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STTH506","Capacitance @ Vr, F":"-","Supplier Device Package":"DPAK","Reverse Recovery Time (trr)":"50 ns","Current - Reverse Leakage @ Vr":"5 µA @ 600 V","Voltage - DC Reverse (Vr) (Max)":"600 V","Current - Average Rectified (Io)":"5A","Operating Temperature - Junction":"175°C (Max)","Voltage - Forward (Vf) (Max) @ If":"1.85 V @ 5 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.6900","priceTiers":[{"qty":1,"price":"$1.69000","currency":"USD"},{"qty":10,"price":"$1.40400","currency":"USD"},{"qty":100,"price":"$1.11710","currency":"USD"},{"qty":500,"price":"$0.94524","currency":"USD"},{"qty":1000,"price":"$0.80202","currency":"USD"},{"qty":2500,"price":"$0.76192","currency":"USD"},{"qty":5000,"price":"$0.73328","currency":"USD"},{"qty":12500,"price":"$0.70900","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a391ded30ed616e8410c995a708be97c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STTH506B-TR/alternatives.json"},"ai":{"faq":[{"question":"What is the reverse recovery time of the STTH506B-TR?","answer":"The STTH506B-TR is specified with a 50 ns reverse recovery time (trr). This qualifies as an ultrafast recovery diode, suitable for switching frequencies above 50 kHz in PFC and flyback stages."},{"question":"What package does the STTH506B-TR come in?","answer":"The STTH506B-TR is supplied in a DPAK (TO-252-3) surface-mount package, with 2 leads plus a tab. The ordering code suffix -TR indicates Tape & Reel packaging for automated pick-and-place assembly."},{"question":"What compliance certifications does the STTH506B-TR carry?","answer":"The STTH506B-TR is ROHS3 compliant. No UL, IEC, or AEC-Q grade is listed in the available documentation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STTH506B-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STTH506B-TR 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}}