{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FERD20H100SFP","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"FERD20H100SFP","canonicalUrl":"https://icboms.com/stmicroelectronics/FERD20H100SFP","factsUrl":"https://icboms.com/api/mcp/products/FERD20H100SFP","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics FERD20H100SFP, FERD (Field Effect Rectifier Diode), 100V reverse, 20A average rectified, 705mV forward drop at 20A, TO-220-3 Full Pack (TO-220FPAB), through-hole, 175°C junction, ROHS3.","salesMarkdown":"## 100 V, 20 A — the conduction-loss floor in a full-pack tab The FERD20H100SFP is a 100 V, 20 A Field Effect Rectifier Diode from STMicroelectronics, built in the FERD (Field Effect Rectifier Diode) family that trades a slightly higher forward drop than a Schottky for a much lower reverse leakage at temperature. At 20 A the forward voltage is 705 mV max — the conduction loss at full load is about 14 W, which the TO-220FPAB full-pack package must sink through the tab to the heatsink. The 100 V reverse rating gives a solid 1.25× derating margin on a 80 V bus; the 175°C junction ceiling allows the die to run hot in a confined enclosure as long as the thermal path is managed. ## Reverse leakage — 140 µA at 100 V, the hidden thermal driver Reverse leakage is specified at 140 µA at 100 V junction temperature. In a FERD the leakage rises with junction temperature more slowly than in a Schottky, but it still doubles every 10–15°C above 100°C. At the 175°C max junction the leakage current can dominate the self-heating budget, so the heatsink design must keep the tab temperature below about 120°C to stay in the efficient region of the leakage curve. ## TO-220FPAB — full-pack isolation, no insulating washer The TO-220FPAB full-pack moulding encapsulates the die and isolates the metal tab — the tab is at circuit potential, not the cathode. This eliminates the need for a silicone-insulator pad and a shoulder washer on the mounting screw. The through-hole leads fit a 0.100-inch pitch footprint; the tab hole is sized for an M3 screw. The thermal resistance junction-to-case is lower than a standard TO-220 with an insulator, but the full-pack body is thicker, so the heatsink must be drilled to clear the plastic stand-offs on the back face.","metaTitle":"ST FERD20H100SFP FERD Diode, 100V 20A, TO-220FPAB","metaDescription":"ST FERD20H100SFP: 100V, 20A FERD rectifier in TO-220FPAB full-pack. 705mV Vf at 20A, 140µA leakage at 100V. Active production, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Package":"Tube","Diode Type":"FERD (Field Effect Rectifier Diode)","Mounting Type":"Through Hole","Package / Case":"TO-220-3 Full Pack","lifecycle_stage":"eol_hot","Supplier Device Package":"TO-220FPAB","Current - Reverse Leakage @ Vr":"140 µA @ 100 V","Voltage - DC Reverse (Vr) (Max)":"100 V","Current - Average Rectified (Io)":"20A","Operating Temperature - Junction":"175°C (Max)","Voltage - Forward (Vf) (Max) @ If":"705 mV @ 20 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.11","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.11000","currency":"USD"},{"qty":10,"price":"$0.91100","currency":"USD"},{"qty":100,"price":"$0.70840","currency":"USD"},{"qty":500,"price":"$0.60046","currency":"USD"},{"qty":1000,"price":"$0.48914","currency":"USD"},{"qty":2000,"price":"$0.46047","currency":"USD"},{"qty":5000,"price":"$0.43854","currency":"USD"},{"qty":10000,"price":"$0.41830","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/70e6bac658fb1edb731251ad7aa69e2c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is FERD20H100SFP obsolete or end-of-life?","answer":"No."},{"question":"What package does FERD20H100SFP come in?","answer":"It comes in a TO-220-3 Full Pack (TO-220FPAB) through-hole package. The full-pack moulding isolates the metal tab so no insulating washer is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/FERD20H100SFP","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/FERD20H100SFP 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}}