{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS4030CT","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS4030CT","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS4030CT","factsUrl":"https://icboms.com/api/mcp/products/STPS4030CT","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS4030CT, Schottky diode, 1 Pair Common Cathode, 30 V Vr, 20 A per diode, 490 mV Vf at 20 A, Fast Recovery =< 500ns, > 200mA (Io), TO-220-3, Through Hole, Tube.","salesMarkdown":"## 30 V, 20 A per leg — what this Schottky pair delivers The forward voltage drop is 490 mV at 20 A, which keeps conduction losses manageable in a TO-220 through-hole package. The fast-recovery characteristic (≤500 ns, >200 mA) suits it for switching power supplies and OR-ing diodes where low Vf and fast turn-off matter. ## Obsolete — plan the replacement now This means STMicroelectronics no longer manufactures it, and the only available stock is through independent distribution or surplus channels. ## Thermal and mechanical fit The TO-220-3 through-hole package with a common-cathode pair means the two anodes are separate and the cathode tab is shared — a standard footprint for dual-rectifier designs. Reverse leakage is 1 mA at 30 V, typical for a Schottky at this voltage and current class.","metaTitle":"STPS4030CT Schottky Diode, 30 V 20 A Common Cathode TO-220","metaDescription":"STPS4030CT Schottky rectifier: 30 V Vr, 20 A per diode, 490 mV Vf at 20 A, TO-220-3 common cathode.","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","Diode Type":"Schottky","Mounting Type":"Through Hole","Package / Case":"TO-220-3","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STPS403","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"TO-220","Current - Reverse Leakage @ Vr":"1 mA @ 30 V","Voltage - DC Reverse (Vr) (Max)":"30 V","Operating Temperature - Junction":"150°C(Max)","Voltage - Forward (Vf) (Max) @ If":"490 mV @ 20 A","Current - Average Rectified (Io) (per Diode)":"20A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/5363c92ddd332cbdf22801698de7b157.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS4030CT/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for STPS4030CT?","answer":"No official successor is recorded for the STPS4030CT. A parametric replacement would be any 30 V, 20 A per-diode common-cathode Schottky in a TO-220-3 package — check vendors like ON Semiconductor, Diodes Inc, or Vishay for equivalent ratings."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS4030CT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS4030CT 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}}