{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS1545G","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS1545G","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS1545G","factsUrl":"https://icboms.com/api/mcp/products/STPS1545G","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS1545G Schottky rectifier, 15 A average rectified current, 45 V reverse voltage, 840 mV forward drop at 30 A, 175°C max junction temperature, D2PAK (TO-263) surface-mount package.","salesMarkdown":"The STPS1545G is a 15 A average, 45 V reverse-rated Schottky rectifier from STMicroelectronics in a D2PAK (TO-263) surface-mount package. It's built for medium-current, fast-switching roles like output rectification in switch-mode supplies, freewheeling diodes across inductive loads, and OR-ing diodes in redundant power systems. The Schottky technology gives you a low forward drop — 840 mV at 30 A — which keeps conduction losses down compared to a standard PN-junction diode at similar current. ## Obsolete — sourcing this part today STMicroelectronics lists the STPS1545G as Obsolete. If your design is still in development or you're planning a long production run, a drop-in alternative is worth evaluating now rather than chasing diminishing stock. ## Drop-in alternative — what to look for The base part number STPS1545 (without the 'G' suffix) is the same die in a different package option — through-hole versus surface-mount. The 'G' denotes the D2PAK / TO-263 surface-mount variant. If your board is laid out for the D2PAK footprint, you need a part in that same package. A direct pin-compatible replacement would be another 15 A, 45 V Schottky in D2PAK from a major supplier — same tab-anode-cathode pinout, same footprint. ST's own STPS1545G is the one you're searching; for a second-source candidate, look at parts like the MBR1545CT in D2PAK from ON Semiconductor or Vishay, but verify the pinout and thermal pad connection match your layout.","metaTitle":"STPS1545G Schottky Rectifier, 15A 45V D2PAK, Obsolete","metaDescription":"STPS1545G Schottky rectifier: 15 A average, 45 V reverse, 840 mV forward drop at 30 A, 175°C junction, D2PAK.","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":"Tube","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":"STPS1545","Capacitance @ Vr, F":"-","Supplier Device Package":"D2PAK","Current - Reverse Leakage @ Vr":"200 µA @ 45 V","Voltage - DC Reverse (Vr) (Max)":"45 V","Current - Average Rectified (Io)":"15A","Operating Temperature - Junction":"175°C (Max)","Voltage - Forward (Vf) (Max) @ If":"840 mV @ 30 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3353","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2c5ea5c4e20f701753e87e5d98c785ee.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS1545G/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for STPS1545G?","answer":"STMicroelectronics has not published an official successor for the STPS1545G. For a pin-compatible drop-in, look for another 15 A, 45 V Schottky rectifier in D2PAK (TO-263) from a major supplier such as ON Semiconductor's MBR1545CT or Vishay's similar part — verify the pinout and thermal pad connection match your layout before committing the BOM."},{"question":"What are the specifications of STPS1545G?","answer":"The STPS1545G is a Schottky rectifier rated for 15 A average rectified current and 45 V reverse voltage. Forward drop is 840 mV at 30 A. Maximum junction temperature is 175°C. It comes in a D2PAK (TO-263) surface-mount package. Reverse leakage is 200 µA at 45 V."},{"question":"Is STPS1545G equivalent to STPS1545?","answer":"The STPS1545 and STPS1545G are electrically the same Schottky die — same 15 A, 45 V ratings. The difference is the package: STPS1545 is through-hole, while STPS1545G is the D2PAK surface-mount variant. They are not footprint-compatible."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS1545G","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS1545G 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}}