{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BAT54-09P6FILM","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"BAT54-09P6FILM","canonicalUrl":"https://icboms.com/stmicroelectronics/BAT54-09P6FILM","factsUrl":"https://icboms.com/api/mcp/products/BAT54-09P6FILM","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics BAT54-09P6FILM, Schottky diode, 2 independent diodes, 300 mA (DC) per diode, 40 V reverse voltage, 5 ns reverse recovery time, SOT-666 package, surface mount, -40°C to 150°C junction temperature.","salesMarkdown":"## Two Schottky diodes in a SOT-666 — what you get The STMicroelectronics BAT54-09P6FILM is a dual Schottky diode array containing two independent, electrically isolated diodes in a single SOT-666 package. Each diode is rated for 300 mA of average rectified current (DC) with a 40 V maximum reverse voltage. The 5 ns reverse recovery time (trr) makes it suitable for high-speed switching applications like polarity protection, OR-ing, and clamping in low-voltage DC rails. ## Obsolete — plan the BOM move now ## 5 ns reverse recovery — fast enough for most switching rails The 5 ns trr is typical for a small-signal Schottky at this current level. It handles switching frequencies well into the MHz range without significant reverse-recovery losses, which matters for DC-DC converter snubbers, flyback diode positions, and high-speed logic-level clamping. The 900 mV forward voltage drop at 100 mA is on the higher side for a Schottky — expect about 0.4 V to 0.5 V at lower forward currents typical of signal diode use. ## SOT-666 footprint — small, but watch the pad layout The SOT-666 package is a 1.6 mm × 1.6 mm body with six leads — two per diode plus two common cathode? Actually, the BAT54-09P6FILM uses the SOT-666 pinout for two independent diodes. The datasheet (available on request) shows the exact pad pattern.","metaTitle":"BAT54-09P6FILM STMicroelectronics Schottky Diode, 300 mA","metaDescription":"BAT54-09P6FILM is an obsolete STMicroelectronics Schottky diode array — two independent 300 mA, 40 V diodes in SOT-666. 5 ns trr.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","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":"SOT-563, SOT-666","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"BAT54","Diode Configuration":"2 Independent","Supplier Device Package":"SOT-666","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":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9e1dd66697a874df6aa70eab23410332.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BAT54-09P6FILM/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for BAT54-09P6FILM?","answer":"For a pin-compatible substitute, look for a dual Schottky diode array in SOT-666 with similar ratings (300 mA per diode, 40 V reverse voltage, 5 ns trr) from other manufacturers. We can help source alternatives against an RFQ."},{"question":"Where can I buy BAT54-09P6FILM?","answer":"We source this obsolete part through independent distribution channels."},{"question":"Is BAT54-09P6FILM equivalent to BAT54?","answer":"The BAT54-09P6FILM shares the same base Schottky diode die as the standard BAT54 series (300 mA, 40 V, 5 ns trr), but it is packaged as two independent diodes in a SOT-666, not the single SOT-23. The electrical characteristics are equivalent per diode, but the package and pinout differ — they are not drop-in replacements."},{"question":"What is BAT54-09P6FILM's listed speed?","answer":"The reverse recovery time (trr) is 5 ns, which qualifies as a fast-recovery Schottky diode suitable for high-frequency switching applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/BAT54-09P6FILM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/BAT54-09P6FILM when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T14:36:57.325Z","lastPublished":"2026-07-16T14:36:57.325Z","indexable":true}}