{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS40170CT","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS40170CT","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS40170CT","factsUrl":"https://icboms.com/api/mcp/products/STPS40170CT","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS40170CT, dual Schottky rectifier, 1 Pair Common Cathode, 170 V Vr, 20 A per diode, 920 mV Vf at 20 A, Fast Recovery =< 500ns, > 200mA (Io), TO-220-3, Through Hole, Tube.","salesMarkdown":"## Fast recovery characteristic — switching loss context The 500 ns ceiling is conservative for a Schottky; typical turn-off times are well under 50 ns. For a 100 kHz PFC boost stage the switching loss in the diode is negligible compared to the conduction loss from the 920 mV Vf. The spec matters more if you are comparing against an ultrafast silicon diode in a replacement scenario — the Schottky wins on switching loss but loses on leakage at high temperature. STMicroelectronics lists the STPS40170CT as Active. For a power-stage BOM that already qualifies this dual-Schottky footprint, there is no urgency to qualify a second source. The base product number STPS40170 covers the family; the CT suffix indicates the TO-220 package variant. If a future EOL were announced, the common-cathode TO-220 footprint is widely second-sourced across the industry — but that is a contingency, not a current need.","metaTitle":"STPS40170CT Schottky Diode, 170V 20A Common Cathode TO-220","metaDescription":"STPS40170CT dual Schottky rectifier: 170 V Vr, 20 A per diode, 920 mV Vf at 20 A, 175°C Tj max. Active production. Request quote.","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":"Tube","Diode Type":"Schottky","Mounting Type":"Through Hole","Package / Case":"TO-220-3","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STPS40170","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"TO-220","Current - Reverse Leakage @ Vr":"30 µA @ 170 V","Voltage - DC Reverse (Vr) (Max)":"170 V","Operating Temperature - Junction":"175°C(Max)","Voltage - Forward (Vf) (Max) @ If":"920 mV @ 20 A","Current - Average Rectified (Io) (per Diode)":"20A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.1500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cf411351a046367edb6d953ff4433c24.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS40170CT/alternatives.json"},"ai":{"faq":[{"question":"What is STPS40170CT's listed speed rating?","answer":"The STPS40170CT is rated Fast Recovery =< 500ns, > 200mA (Io). As a Schottky diode, its actual switching speed is much faster than this ceiling — the 500 ns spec is a conservative bound for the recovery time classification."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS40170CT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS40170CT 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}}