{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS20SM100SG-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS20SM100SG-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS20SM100SG-TR","factsUrl":"https://icboms.com/api/mcp/products/STPS20SM100SG-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS20SM100SG-TR, Schottky Rectifier, 100 V DC reverse, 20 A average rectified, 900 mV forward drop at 20 A, D²PAK (TO-263AB), surface mount, fast recovery ≤500 ns.","salesMarkdown":"## 100 V 20 A Schottky — what it handles The STPS20SM100SG-TR is a 100 V, 20 A Schottky rectifier from STMicroelectronics, built for the fast-switching, low-forward-drop leg of a power supply or OR-ing diode application. The 900 mV forward drop at 20 A is the conduction loss number you size the heatsink for — at full load that is 18 W junction dissipation, and the 150 °C max junction temperature sets the derating curve. STMicroelectronics lists this part as obsolete. No official successor is recorded in the lifecycle data. For a production BOM that already carries this rectifier, the path is either a last-time-buy buy-in or a qualification of a pin-compatible replacement. The D²PAK footprint is common across the STPS20 family, so a drop-in like the STPS20H100CT (same 100 V / 20 A rating, different Vf characteristic) is the first candidate to evaluate — but confirm the forward voltage and reverse leakage trade-offs against your thermal budget before swapping. ## Package and thermal — D²PAK layout notes The TO-263AB (D²PAK) surface-mount package has a large exposed tab on the bottom. That tab is the cathode and the primary thermal path. A two-layer board with minimal copper will run the junction hotter than a four-layer board with a dedicated thermal plane. The tab must be soldered; a dry joint here lifts the junction temperature by 20 °C or more.","metaTitle":"STPS20SM100SG-TR Schottky Rectifier, 100 V 20 A, D²PAK","metaDescription":"STPS20SM100SG-TR 100 V 20 A Schottky rectifier in D²PAK. Fast recovery ≤500 ns.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"-","Package":"Tape & Reel (TR) Cut Tape (CT)","Technology":"Schottky","Mounting Type":"Surface Mount","Package / Case":"TO-263-3, D²Pak (2 Leads + Tab), TO-263AB","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STPS20","Capacitance @ Vr, F":"-","Supplier Device Package":"D²PAK","Current - Reverse Leakage @ Vr":"30 µA @ 100 V","Voltage - DC Reverse (Vr) (Max)":"100 V","Current - Average Rectified (Io)":"20A","Operating Temperature - Junction":"150°C (Max)","Voltage - Forward (Vf) (Max) @ If":"900 mV @ 20 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.5000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e804b3806677e865f5a168058ab87abb.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS20SM100SG-TR/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for STPS20SM100SG-TR?","answer":"No official successor is listed. A pin-compatible candidate in the same STPS20 family is the STPS20H100CT, which shares the 100 V / 20 A rating and D²PAK footprint. Verify forward voltage and reverse leakage against your design's thermal limits before committing."},{"question":"What are the specifications of STPS20SM100SG-TR?","answer":"It is a 100 V, 20 A Schottky rectifier in a D²PAK (TO-263AB) surface-mount package. Forward voltage is 900 mV max at 20 A. Reverse leakage is 30 µA at 100 V. Operating junction temperature is 150 °C max. It is rated as a fast recovery diode (≤500 ns, >200 mA)."},{"question":"STPS20SM100SG-TR vs STPS20H100CT?","answer":"Both are 100 V, 20 A Schottky rectifiers in the D²PAK footprint. The key difference is forward voltage characteristic: the STPS20SM100SG-TR lists 900 mV at 20 A, while the STPS20H100CT typically has a lower Vf at moderate currents but higher leakage at elevated temperature. The choice depends on your conduction loss budget and thermal design."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS20SM100SG-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS20SM100SG-TR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}