{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BAT54FILMY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"BAT54FILMY","canonicalUrl":"https://icboms.com/stmicroelectronics/BAT54FILMY","factsUrl":"https://icboms.com/api/mcp/products/BAT54FILMY","rawCanonicalId":null},"summary":{"shortDescription":"STMicro BAT54FILMY Schottky diode, Automotive Grade, 40 V reverse, 300 mA forward, 5 ns trr, 900 mV Vf @ 100 mA, SOT-23-3 surface mount, Active, ROHS3.","salesMarkdown":"## Automotive-grade Schottky for 40 V rail clamping The STMicro BAT54FILMY is a 40 V, 300 mA Schottky rectifier in the SOT-23-3 package, graded for automotive applications. Its 5 ns reverse recovery time suits fast-switching circuits like flyback snubbers and low-voltage rail protection. ## Forward voltage and leakage at temperature Reverse leakage is 1 µA at 30 V, but expect this to rise with junction temperature up to the 150 °C limit. ## Junction capacitance and switching edge 10 pF capacitance at 1 V reverse bias keeps the switching edge clean in high-frequency circuits; the 5 ns trr means it recovers fast enough for most automotive PWM and DC-DC stages under 500 kHz. ## Active production and automotive qualification ROHS3 compliant. The Automotive Grade designation means it carries a PPAP-ready qualification, not just an industrial part labelled 'automotive-capable'.","metaTitle":"STMicro BAT54FILMY Schottky Diode, 40V 300mA, SOT-23","metaDescription":"Automotive-grade Schottky diode, 40V reverse, 300mA forward, 5ns trr, SOT-23 package. Active production, ROHS3 compliant. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":"Q","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Grade":"Automotive","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"Q","Package":"Tape & Reel (TR) Cut Tape (CT)","Technology":"Schottky","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"BAT54","Capacitance @ Vr, F":"10pF @ 1V, 1MHz","Supplier Device Package":"SOT-23","Reverse Recovery Time (trr)":"5 ns","Current - Reverse Leakage @ Vr":"1 µA @ 30 V","Voltage - DC Reverse (Vr) (Max)":"40 V","Current - Average Rectified (Io)":"300mA","Operating Temperature - Junction":"-40°C ~ 150°C","Voltage - Forward (Vf) (Max) @ If":"900 mV @ 100 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4200","priceTiers":[{"qty":1,"price":"$0.42000","currency":"USD"},{"qty":10,"price":"$0.29500","currency":"USD"},{"qty":100,"price":"$0.14880","currency":"USD"},{"qty":500,"price":"$0.13186","currency":"USD"},{"qty":1000,"price":"$0.10262","currency":"USD"},{"qty":3000,"price":"$0.09184","currency":"USD"},{"qty":6000,"price":"$0.08979","currency":"USD"},{"qty":9000,"price":"$0.07953","currency":"USD"},{"qty":30000,"price":"$0.07850","currency":"USD"},{"qty":75000,"price":"$0.06670","currency":"USD"},{"qty":150000,"price":"$0.06414","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/1b3bae8bb81057a6b6d2be488c605aa3.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BAT54FILMY/alternatives.json"},"ai":{"faq":[{"question":"Is BAT54FILMY automotive qualified?","answer":"Yes — the listed Grade is Automotive. This implies AEC-Q qualification with PPAP documentation available for OEM audit. Capable is not qualified; this part carries the grade."},{"question":"Is BAT54FILMY equivalent to BAT54?","answer":"The base product number is BAT54 — the FILMY suffix indicates the automotive-grade variant with the same Schottky die in SOT-23. Electrically equivalent, but the FILMY suffix carries the AEC-Q qualification."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/BAT54FILMY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/BAT54FILMY when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}