{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FERD40H100SFP","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"FERD40H100SFP","canonicalUrl":"https://icboms.com/stmicroelectronics/FERD40H100SFP","factsUrl":"https://icboms.com/api/mcp/products/FERD40H100SFP","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics FERD40H100SFP, EconoPACK™ 2 series, FERD (Field Effect Rectifier Diode), 100 V DC reverse, 40 A average rectified, 675 mV forward drop at 20 A, Standard Recovery >500 ns, TO-220-3 Full Pack, Through Hole, ROHS3 Compliant.","salesMarkdown":"## 100 V, 40 A FERD in a fully isolated TO-220 The STMicroelectronics FERD40H100SFP is a Field Effect Rectifier Diode (FERD) rated for 100 V DC reverse voltage and 40 A average rectified current. It is part of the EconoPACK™ 2 series and comes in a TO-220-3 Full Pack package (TO-220FPAB), which means the back tab is fully isolated — no insulating pad or washer is needed between the device and the heatsink. That saves a BOM line and a manual assembly step. At 20 A forward current the maximum forward voltage is 675 mV. That is low for a 100 V / 40 A rectifier — the FERD structure trades a slightly higher reverse leakage for a lower Vf compared to a standard ultrafast diode of the same voltage class. The reverse leakage at 100 V is 190 µA, which is the price paid for that conduction loss advantage. The recovery speed is listed as Standard Recovery >500 ns at >200 mA. This is not a fast-recovery or ultrafast diode — it is meant for line-frequency rectification, not for a 100 kHz PFC boost stage. ## Junction temperature and thermal management The maximum junction temperature is 175 °C, which is the standard ceiling for silicon power diodes in industrial and motor-drive environments. The TO-220 Full Pack package has a higher thermal resistance than the standard TO-220 because the plastic encapsulation adds an insulating layer between the die and the heatsink. For a 40 A average current at elevated ambient, the heatsink must be sized to keep the junction below 150 °C in steady state to leave headroom for overload transients.","metaTitle":"ST FERD40H100SFP FERD Diode, 100 V 40 A TO-220FPAB","metaDescription":"ST FERD40H100SFP Field Effect Rectifier Diode, 100 V reverse, 40 A average, 675 mV forward drop at 20 A. Active production.","metaKeywords":null},"attributes":{"series":"EconoPACK™ 2","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Speed":"Standard Recovery >500ns, > 200mA (Io)","Series":"EconoPACK™ 2","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":"190 µA @ 100 V","Voltage - DC Reverse (Vr) (Max)":"100 V","Current - Average Rectified (Io)":"40A","Operating Temperature - Junction":"175°C (Max)","Voltage - Forward (Vf) (Max) @ If":"675 mV @ 20 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.62","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.71000","currency":"USD"},{"qty":10,"price":"$1.53200","currency":"USD"},{"qty":100,"price":"$1.19480","currency":"USD"},{"qty":500,"price":"$0.98702","currency":"USD"},{"qty":1000,"price":"$0.84962","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8a7e4eddf0e5f48f59701b7be3845eda.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/FERD40H100SFP","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/FERD40H100SFP 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}}