{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BAT41","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"BAT41","canonicalUrl":"https://icboms.com/stmicroelectronics/BAT41","factsUrl":"https://icboms.com/api/mcp/products/BAT41","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics BAT41, Schottky diode, 100 V reverse voltage, 100 mA average rectified current, 450 mV forward drop at 1 mA, DO-204AH (DO-35) axial package, through-hole mount, -65°C to 125°C junction temperature.","salesMarkdown":"The BAT41 is a Schottky barrier rectifier diode from STMicroelectronics, rated for 100 V reverse voltage and 100 mA average rectified current. It comes in a DO-35 axial-lead package for through-hole mounting. The Schottky construction gives a forward voltage drop of 450 mV at 1 mA, which keeps conduction losses low in low-voltage circuits. Typical applications include small-signal rectification, freewheeling diodes in relay and solenoid drivers, polarity protection on low-current rails, and high-speed switching where reverse-recovery time matters. The 100 V DC reverse voltage rating means this diode can block up to 100 V without breaking down. ## 100 mA average current — small-signal class The 100 mA average rectified current (Io) places the BAT41 firmly in the small-signal category. It is sized for signal diodes, gate-drive circuits, and low-power auxiliary rails — not for main power rectification. If your load pulls 200 mA continuous, this part is undersized. The speed rating of \"Small Signal =< 200 mA (Io), Any Speed\" confirms it is intended for switching applications where the average current stays under 200 mA. ## Forward voltage and leakage — the Schottky trade-off The 450 mV forward drop at 1 mA is the main reason to pick a Schottky over a standard silicon diode — it wastes less voltage and heat in low-voltage paths. The reverse leakage is 100 nA at 50 V. ## Package and mounting — DO-35 axial The DO-35 axial package is a through-hole part with wire leads. It solders into a PCB or a terminal strip. Polarity is marked by a cathode band on the body — easy to get right on site with a visual check. No end-of-life notice or last-time-buy is on record. It is a standard catalog part available through independent distribution.","metaTitle":"BAT41 Schottky Diode, 100 V, 100 mA, DO-35, Active","metaDescription":"STMicroelectronics BAT41 Schottky diode: 100 V reverse voltage, 100 mA average current, 450 mV forward drop at 1 mA. DO-35 axial package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Speed":"Small Signal =< 200mA (Io), Any Speed","Package":"Tape & Reel (TR); Cut Tape (CT)","Diode Type":"Schottky","Mounting Type":"Through Hole","Package / Case":"DO-204AH, DO-35, Axial","lifecycle_stage":"eol_hot","Capacitance @ Vr, F":"2pF @ 1V, 1MHz","Supplier Device Package":"DO-35","Current - Reverse Leakage @ Vr":"100 nA @ 50 V","Voltage - DC Reverse (Vr) (Max)":"100 V","Current - Average Rectified (Io)":"100mA","Operating Temperature - Junction":"-65°C ~ 125°C","Voltage - Forward (Vf) (Max) @ If":"450 mV @ 1 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.42","priceTiers":[{"qty":1,"price":"$0.39000","currency":"USD"},{"qty":10,"price":"$0.30400","currency":"USD"},{"qty":100,"price":"$0.18240","currency":"USD"},{"qty":500,"price":"$0.16892","currency":"USD"},{"qty":1000,"price":"$0.11487","currency":"USD"},{"qty":2000,"price":"$0.10575","currency":"USD"},{"qty":4000,"price":"$0.10575","currency":"USD"},{"qty":8000,"price":"$0.10135","currency":"USD"},{"qty":12000,"price":"$0.09122","currency":"USD"},{"qty":28000,"price":"$0.08987","currency":"USD"},{"qty":100000,"price":"$0.08363","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/597d700772dd3c8c80b188aa14386ee1.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BAT41/alternatives.json"},"ai":{"faq":[{"question":"Is BAT41 equivalent to 1N5818?","answer":"No, the BAT41 and 1N5818 are not equivalent. The 1N5818 is a 1 A, 30 V Schottky in a DO-41 package — higher current and lower voltage. The BAT41 is a 100 mA, 100 V small-signal diode in a DO-35 package. They are not pin-compatible and serve different circuit roles."},{"question":"Is BAT41 a Schottky diode?","answer":"Yes, the BAT41 is a Schottky barrier diode."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/BAT41","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/BAT41 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:51:14.863Z","lastPublished":"2026-07-22T18:51:14.863Z","indexable":true}}