{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS80L30CY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS80L30CY","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS80L30CY","factsUrl":"https://icboms.com/api/mcp/products/STPS80L30CY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS80L30CY, Schottky diode, 1 Pair Common Cathode, 40A average per diode, 30V reverse, 480mV forward drop at 40A, Fast Recovery ≤500ns, TO-247-3 through-hole, MAX247 package, 150°C max junction.","salesMarkdown":"## Dual 40 A Schottky in a TO-247 — the low-Vf workhorse The STMicroelectronics STPS80L30CY is a dual common-cathode Schottky rectifier rated for 40 A average per diode with a 30 V reverse voltage. Its forward voltage sits at 480 mV when carrying the full 40 A per diode, which keeps conduction losses manageable in high-current rectification and OR-ing stages. The fast recovery characteristic — ≤500 ns — qualifies it for switching frequencies above 200 mA where a standard diode would drag. At 40 A per diode the forward drop is 480 mV, so each diode dissipates roughly 19 W at full rated current. In a TO-247-3 through-hole package with the MAX247 body, the junction-to-case thermal path needs a heatsink rated for that dissipation — the 150°C max junction temperature leaves a hard ceiling. The common-cathode configuration means both anodes share the same cathode tab, which simplifies the heatsink isolation: the tab is at cathode potential. ST lists the STPS80L30CY as obsolete. That means no further factory orders — the only channel is surplus, broker, or last-time-buy inventory still in the distribution pipe. No official successor part is recorded, so a pin-compatible drop-in replacement would need to be qualified from the same TO-247-3 dual-Schottky family.","metaTitle":"STPS80L30CY Schottky Diode, 2x40A 30V TO-247-3, Obsolete","metaDescription":"STPS80L30CY dual common-cathode Schottky rectifier, 40A per diode, 30V Vr, 480mV Vf at 40A, TO-247-3 package.","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":"Through Hole","Package / Case":"TO-247-3","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STPS80","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"MAX247™","Current - Reverse Leakage @ Vr":"4 mA @ 30 V","Voltage - DC Reverse (Vr) (Max)":"30 V","Operating Temperature - Junction":"150°C (Max)","Voltage - Forward (Vf) (Max) @ If":"480 mV @ 40 A","Current - Average Rectified (Io) (per Diode)":"40A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS80L30CY/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS80L30CY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS80L30CY 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}}