{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BAR42FILM","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"BAR42FILM","canonicalUrl":"https://icboms.com/stmicroelectronics/BAR42FILM","factsUrl":"https://icboms.com/api/mcp/products/BAR42FILM","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics BAR42FILM, Schottky Diode, 30 V Reverse, 100 mA Average Rectified, 1 V Forward at 100 mA, 5 ns Reverse Recovery, SOT-23-3, Surface Mount, Active.","salesMarkdown":"## Schottky barrier diode for low-voltage, fast-switching signal paths The STMicroelectronics BAR42FILM is a Schottky barrier diode rated for 30 V DC reverse voltage and 100 mA average rectified current, housed in a surface-mount SOT-23-3 package. It is designed for low-voltage, high-speed switching applications where forward voltage drop and reverse recovery time matter — the datasheet lists a maximum forward voltage of 1 V at 100 mA forward current and a reverse recovery time of 5 ns. Junction capacitance is only 7 pF at 1 V reverse bias and 1 MHz, which keeps signal integrity intact in RF detector and clamping circuits. The part is active in production and ROHS3 compliant, so it fits current BOMs without a lifecycle concern. ## What the forward voltage and recovery time mean for your circuit At 100 mA forward current the BAR42FILM drops no more than 1 V — a Schottky's advantage over a standard pn-junction diode in low-voltage rails. The 5 ns reverse recovery time means it can follow fast-switching edges without excessive stored-charge tail, which is what you want in a freewheeling clamp across an inductive load or in a high-frequency rectifier stage. The 500 nA maximum reverse leakage at 30 V reverse bias is low enough to avoid loading sensitive nodes in battery-powered or high-impedance circuits. ## Package and mounting — SOT-23-3 footprint The BAR42FILM ships in a standard SOT-23-3 surface-mount package (also referenced as TO-236-3 or SC-59). No special thermal management is needed at 100 mA average current.","metaTitle":"BAR42FILM Schottky Diode, 30V 100mA SOT-23-3","metaDescription":"STMicroelectronics BAR42FILM Schottky diode, 30V reverse, 100mA forward, 1V Vf at 100mA, 5ns trr, SOT-23-3. Active, 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)","Technology":"Schottky","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","lifecycle_stage":"eol_hot","Capacitance @ Vr, F":"7pF @ 1V, 1MHz","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","Current - Average Rectified (Io)":"100mA","Operating Temperature - Junction":"150°C (Max)","Voltage - Forward (Vf) (Max) @ If":"1 V @ 100 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.38","priceTiers":[{"qty":1,"price":"$0.40000","currency":"USD"},{"qty":10,"price":"$0.30000","currency":"USD"},{"qty":100,"price":"$0.18700","currency":"USD"},{"qty":500,"price":"$0.12798","currency":"USD"},{"qty":1000,"price":"$0.09844","currency":"USD"},{"qty":3000,"price":"$0.08860","currency":"USD"},{"qty":6000,"price":"$0.08367","currency":"USD"},{"qty":15000,"price":"$0.08050","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7ce68e27748f36e6b1bfa44e26bac1cc.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BAR42FILM/alternatives.json"},"ai":{"faq":[{"question":"Is BAR42FILM lead-free and RoHS compliant?","answer":"Yes, the BAR42FILM is ROHS3 compliant, meeting the current RoHS directive for lead-free and restricted-substance limits."},{"question":"What is the recommended alternate for BAR42FILM?","answer":"No official alternate or cross-reference is listed in the available documentation. For a pin-compatible Schottky in the same SOT-23-3 footprint, check the STMicroelectronics BAT54 series — same package, similar voltage and current ratings — but verify the forward voltage and capacitance against your circuit's requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/BAR42FILM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/BAR42FILM 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}}