{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BAR43CFILM","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"BAR43CFILM","canonicalUrl":"https://icboms.com/stmicroelectronics/BAR43CFILM","factsUrl":"https://icboms.com/api/mcp/products/BAR43CFILM","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics BAR43CFILM, Schottky diode array, 1 pair common cathode, 30 V DC reverse, 100 mA average rectified per diode, 5 ns trr, SOT-23-3 surface mount.","salesMarkdown":"## Package and mounting The BAR43CFILM is a dual Schottky diode array from STMicroelectronics, with two diodes in a common-cathode configuration inside a single SOT-23-3 package. Each diode is rated for 30 V reverse voltage and 100 mA average rectified current — the numbers a repair tech checks first when a low-voltage rail or signal clamp has failed. The 5 ns reverse recovery time tells you this is a fast-switching Schottky, not a 50 Hz rectifier. It is meant for high-frequency steering, OR-ing, and clamping in circuits where a standard silicon diode would leave a voltage droop or a slow tail. ## Leakage and forward drop — the numbers that decide standby draw Reverse leakage is spec'd at 500 nA maximum at 30 V — low enough that it will not drain a battery in a power-path OR-ing application, but worth checking against the actual operating voltage because leakage rises with junction temperature. Forward voltage is 1 V maximum at 100 mA, which is typical for a small-signal Schottky at this current. ## SOT-23-3 footprint and common-cathode pinout The SOT-23-3 package (also listed as TO-236-3 / SC-59) is a standard three-lead surface-mount footprint.","metaTitle":"STMicroelectronics BAR43CFILM Schottky Diode Array","metaDescription":"ST BAR43CFILM Schottky diode array, 30 V reverse, 100 mA forward per diode, 5 ns trr, SOT-23-3. Active production. RoHS3 compliant.","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":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","lifecycle_stage":"eol_hot","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"SOT-23-3","Reverse Recovery Time (trr)":"5 ns","Current - Reverse Leakage @ Vr":"500 nA @ 30 V","Voltage - DC Reverse (Vr) (Max)":"30 V","Operating Temperature - Junction":"150°C (Max)","Voltage - Forward (Vf) (Max) @ If":"1 V @ 100 mA","Current - Average Rectified (Io) (per Diode)":"100mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.44","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.44000","currency":"USD"},{"qty":10,"price":"$0.32400","currency":"USD"},{"qty":100,"price":"$0.18370","currency":"USD"},{"qty":500,"price":"$0.12166","currency":"USD"},{"qty":1000,"price":"$0.09327","currency":"USD"},{"qty":3000,"price":"$0.08111","currency":"USD"},{"qty":6000,"price":"$0.07300","currency":"USD"},{"qty":15000,"price":"$0.06633","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7ce68e27748f36e6b1bfa44e26bac1cc.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/BAR43CFILM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/BAR43CFILM when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T16:43:27.297Z","lastPublished":"2026-07-16T16:43:27.297Z","indexable":true}}