{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TMBT3904,LM","brand":"Toshiba Semiconductor","brandSlug":"toshiba","productSlug":"TMBT3904LM","canonicalUrl":"https://icboms.com/toshiba/TMBT3904LM","factsUrl":"https://icboms.com/api/mcp/products/TMBT3904%2CLM","rawCanonicalId":null},"summary":{"shortDescription":"Toshiba TMBT3904,LM NPN transistor, 50 V collector-emitter breakdown, 150 mA collector current, 300 MHz transition frequency, SOT-23-3 surface-mount package, 320 mW power dissipation.","salesMarkdown":"## 300 MHz NPN switch in SOT-23-3 The TMBT3904,LM from Toshiba is a general-purpose NPN switching transistor in the industry-standard SOT-23-3 package. It is rated for a collector-emitter breakdown of 50 V and a continuous collector current of 150 mA, with a transition frequency of 300 MHz — suitable for low-to-medium speed switching, level translation, and signal amplification in compact surface-mount designs. ## Saturation voltage and DC gain at typical bias At a base drive of 5 mA and collector current of 50 mA, the Vce(sat) maximum is 300 mV — a clean saturation voltage that keeps on-state dissipation low in switching loads.","metaTitle":"TMBT3904,LM NPN Transistor, 50V 150mA 300MHz SOT-23-3","metaDescription":"TMBT3904,LM NPN general-purpose transistor: 50V Vce, 150mA Ic, 300MHz ft, SOT-23-3. Active status, RoHS compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Power - Max":"320 mW","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Transistor Type":"NPN","lifecycle_stage":"eol_hot","Operating Temperature":"150°C (TJ)","Frequency - Transition":"300MHz","Supplier Device Package":"SOT-23-3","Vce Saturation (Max) @ Ib, Ic":"300mV @ 5mA, 50mA","Current - Collector (Ic) (Max)":"150 mA","Current - Collector Cutoff (Max)":"100nA (ICBO)","DC Current Gain (hFE) (Min) @ Ic, Vce":"100 @ 10mA, 1V","Voltage - Collector Emitter Breakdown (Max)":"50 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.18","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.18000","currency":"USD"},{"qty":10,"price":"$0.16700","currency":"USD"},{"qty":100,"price":"$0.09090","currency":"USD"},{"qty":500,"price":"$0.05596","currency":"USD"},{"qty":1000,"price":"$0.03816","currency":"USD"},{"qty":3000,"price":"$0.03244","currency":"USD"},{"qty":6000,"price":"$0.02926","currency":"USD"},{"qty":15000,"price":"$0.02544","currency":"USD"},{"qty":30000,"price":"$0.02290","currency":"USD"},{"qty":75000,"price":"$0.02035","currency":"USD"}]},"links":{"datasheetUrl":"https://toshiba.semicon-storage.com/info/TMBT3904_datasheet_en_20180517.pdf?did=29706&prodName=TMBT3904","sourceUrl":null},"ai":{"faq":[{"question":"Is TMBT3904 equivalent to 2N3904?","answer":"The TMBT3904,LM is the SOT-23 surface-mount version of the classic 2N3904 NPN transistor. It shares the same electrical ratings — 50 V Vce, 150 mA Ic, 300 MHz ft — in a smaller, surface-mount package for modern PCB assembly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/toshiba/TMBT3904LM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/toshiba/TMBT3904LM when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}