{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS30170DJF-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS30170DJF-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS30170DJF-TR","factsUrl":"https://icboms.com/api/mcp/products/STPS30170DJF-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS30170DJF-TR, Schottky Diode, 170 V Vr, 30 A Io, 950 mV Vf @ 30 A, 150°C Tj max, 8-PowerVDFN PowerFlat 5x6, Surface Mount, Tape & Reel.","salesMarkdown":"## 170 V, 30 A Schottky in a PowerFlat 5x6 — where it fits The STMicroelectronics STPS30170DJF-TR is a 170 V, 30 A Schottky rectifier in the 8-PowerVDFN PowerFlat 5x6 mm surface-mount package. It is designed for high-current, fast-switching applications where low forward voltage drop and high junction temperature capability are required — typical deployment includes output rectification in 48 V to 100 V bus converters, solar panel bypass diodes, and freewheeling diodes in motor-drive and power-supply stages. ## 950 mV forward drop at 30 A — the conduction loss number At the full 30 A rated current the forward voltage sits at 950 mV maximum. That is the figure to plug into the thermal calculation: 28.5 W conduction loss at full tilt, which the PowerFlat 5x6 exposed-pad package must sink to keep the junction under the 150°C ceiling. For a 100 V bus converter running at 15 A average the loss drops to about half, but the thermal pad and via stitch still need attention — the datasheet's typical Rth(j-c) curve for this package assumes a large copper area on the PCB. ## 150°C junction — the thermal headroom The maximum operating junction temperature is 150°C. That is a standard ceiling for power Schottkys in this voltage class, but it means the designer must derate for ambient temperature and PCB thermal resistance. In a 85°C ambient server PSU the allowable temperature rise is only 65°C, which forces either a larger copper pour, forced air, or a lower average current than the 30 A headline. The 15 µA reverse leakage at 170 V is a room-temperature figure; at 125°C junction it will be significantly higher, so the standby-loss budget needs a hot-case check.","metaTitle":"STPS30170DJF-TR Schottky Diode, 170 V, 30 A, PowerFlat 5x6","metaDescription":"STPS30170DJF-TR Schottky rectifier: 170 V reverse, 30 A average, 950 mV Vf at 30 A, 150°C Tj max, PowerFlat 5x6 package. Active product, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Diode Type":"Schottky","Mounting Type":"Surface Mount","Package / Case":"8-PowerVDFN","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STPS30170","Capacitance @ Vr, F":"-","Supplier Device Package":"PowerFlat™ (5x6)","Current - Reverse Leakage @ Vr":"15 µA @ 170 V","Voltage - DC Reverse (Vr) (Max)":"170 V","Current - Average Rectified (Io)":"30A","Operating Temperature - Junction":"150°C(Max)","Voltage - Forward (Vf) (Max) @ If":"950 mV @ 30 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.6500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/976e0386a1cb43666b7a70a2c16637ee.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS30170DJF-TR/alternatives.json"},"ai":{"faq":[{"question":"What is the operating junction temperature of STPS30170DJF-TR?","answer":"This is the absolute ceiling — the designer must ensure the thermal resistance of the PCB and any heatsinking keeps the junction below this limit under all load and ambient conditions."},{"question":"Where can I buy STPS30170DJF-TR?","answer":"This part is available to order through independent distribution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS30170DJF-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS30170DJF-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}}