{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BAT46WFILM","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"BAT46WFILM","canonicalUrl":"https://icboms.com/stmicroelectronics/BAT46WFILM","factsUrl":"https://icboms.com/api/mcp/products/BAT46WFILM","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics BAT46WFILM, Schottky diode, 100 V DC reverse, 150 mA average rectified, 1 Vf at 250 mA, SOT-323, surface mount.","salesMarkdown":"## 100 V Schottky in a SOT-323 — signal-level protection workhorse The STMicroelectronics BAT46WFILM is a small-signal Schottky rectifier rated for 100 V DC reverse and 150 mA average forward current, housed in a surface-mount SOT-323 package. It is built for low-current, high-voltage applications where a Schottky's fast switching and low forward drop beat a standard silicon diode — think reverse-polarity blocking, flyback catch diodes, and OR-ing in battery-powered or portable equipment. ## Forward drop and leakage — the trade-off at 100 V Maximum forward voltage is 1 V at 250 mA, which is typical for a 100 V Schottky in this current class — the higher reverse voltage rating trades a slightly higher Vf compared to a 40 V Schottky. Reverse leakage is 5 µA at 75 V, a figure worth noting if the diode sits across a high-impedance node in a low-power design where leakage current could upset bias points. Junction capacitance is 10 pF at 0 V, 1 MHz, making this diode suitable for low-frequency switching and protection roles where capacitive loading is not a concern. ## SOT-323 footprint — rework and layout notes The SOT-323 (SC-70) package measures about 2.0 x 1.25 mm with a 0.65 mm pin pitch. It is small enough for dense layouts but still hand-solderable with a fine-tip iron or hot-air station — the thermal mass is low, so the joint wets quickly without cooking the board. No exposed pad, so no thermal-via planning needed.","metaTitle":"STMicro BAT46WFILM Schottky Diode, 100V 150mA SOT-323","metaDescription":"BAT46WFILM Schottky diode, 100 V reverse, 150 mA forward, 1 Vf at 250 mA. Active, ROHS3, SOT-323.","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":"SC-70, SOT-323","lifecycle_stage":"eol_hot","Capacitance @ Vr, F":"10pF @ 0V, 1MHz","Supplier Device Package":"SOT-323","Current - Reverse Leakage @ Vr":"5 µA @ 75 V","Voltage - DC Reverse (Vr) (Max)":"100 V","Current - Average Rectified (Io)":"150mA","Operating Temperature - Junction":"150°C (Max)","Voltage - Forward (Vf) (Max) @ If":"1 V @ 250 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.38","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.38000","currency":"USD"},{"qty":10,"price":"$0.29100","currency":"USD"},{"qty":100,"price":"$0.17480","currency":"USD"},{"qty":500,"price":"$0.16186","currency":"USD"},{"qty":1000,"price":"$0.11006","currency":"USD"},{"qty":3000,"price":"$0.10132","currency":"USD"},{"qty":6000,"price":"$0.09711","currency":"USD"},{"qty":9000,"price":"$0.08740","currency":"USD"},{"qty":30000,"price":"$0.08611","currency":"USD"},{"qty":75000,"price":"$0.08093","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2da8ba4de163162d1f393b2c425ce0fa.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to BAT46WFILM?","answer":"For a dual-sourcing strategy, compare the BAT46WFILM's 100 V / 150 mA ratings and SOT-323 footprint against other small-signal Schottky diodes in the same package — parametric equivalence should be verified against the target application's voltage, current, and leakage requirements."},{"question":"What is BAT46WFILM's listed speed?","answer":"The speed classification is Small Signal =< 200 mA (Io), Any Speed — this is a standard Schottky rectifier rated for general-purpose switching up to its 150 mA average forward current."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/BAT46WFILM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/BAT46WFILM when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T17:06:26.687Z","lastPublished":"2026-07-16T17:06:26.687Z","indexable":true}}