{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BAT54AFILM","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"BAT54AFILM","canonicalUrl":"https://icboms.com/stmicroelectronics/BAT54AFILM","factsUrl":"https://icboms.com/api/mcp/products/BAT54AFILM","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics BAT54AFILM, Schottky diode, dual common anode, 40 V reverse, 300 mA average rectified, 5 ns trr, SOT-23-3, surface mount.","salesMarkdown":"## What this Schottky pair does on the board ## Switching speed and recovery — the 5 ns edge The 5 ns reverse recovery time (trr) is the headline spec for this part. In a boost converter or a gate-drive bootstrap circuit, that fast recovery means the diode stops conducting almost as soon as the voltage reverses, minimising the reverse-recovery charge that would otherwise spike the switching losses. For a 300 mA Schottky, 5 ns is tight — it keeps the efficiency curve clean up into the low-MHz switching range. At 100 mA forward current the forward voltage drop maxes at 900 mV — higher than a power Schottky, but expected for a small-signal part where the trade-off is speed over conduction loss. The 1 µA reverse leakage at 30 V is low enough that it won't upset a high-impedance sense node or a battery-powered rail. SOT-23-3 is one of the most rework-friendly small-signal packages. Three pads, wide 0.95 mm pitch, no thermal pad underneath — a standard hot-air station at 300 °C will lift the part clean in under 10 seconds without cooking the board. That means no last-time-buy pressure, no scramble for surplus stock.","metaTitle":"BAT54AFILM Schottky Diode, 40V 300mA, 5ns trr, SOT-23-3","metaDescription":"STMicroelectronics BAT54AFILM Schottky diode, dual common anode, 40V 300mA, 5ns reverse recovery. SOT-23-3. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Diode Type":"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","Diode Configuration":"1 Pair Common Anode","Supplier Device Package":"SOT-23-3","Reverse Recovery Time (trr)":"5 ns","Current - Reverse Leakage @ Vr":"1 µA @ 30 V","Voltage - DC Reverse (Vr) (Max)":"40 V","Operating Temperature - Junction":"-40°C~150°C","Voltage - Forward (Vf) (Max) @ If":"900 mV @ 100 mA","Current - Average Rectified (Io) (per Diode)":"300mA (DC)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a45db93da6c352b18b3e390448765d10.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BAT54AFILM/alternatives.json"},"ai":{"faq":[{"question":"Is BAT54AFILM suitable for high-speed switching?","answer":"Yes. The 5 ns reverse recovery time qualifies it for fast-switching roles such as flyback clamping, polarity protection, and signal steering in circuits switching up into the low-MHz range."},{"question":"What is the difference between BAT54AFILM and BAT54A?","answer":"Both are dual Schottky diodes in SOT-23-3 with the same 40 V / 300 mA / 5 ns ratings. The difference is the internal configuration: BAT54AFILM is a common-anode pair (cathodes on pins 1 and 3, shared anode on pin 2), while the base BAT54A is a single diode. The pinout and footprint are identical — the choice depends on whether the circuit needs two independent Schottkys or a common-anode pair."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/BAT54AFILM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/BAT54AFILM 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}}