{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"RN4908,LF(CT","brand":"Toshiba Semiconductor","brandSlug":"toshiba","productSlug":"RN4908LFCT","canonicalUrl":"https://icboms.com/toshiba/RN4908LFCT","factsUrl":"https://icboms.com/api/mcp/products/RN4908%2CLF(CT","rawCanonicalId":null},"summary":{"shortDescription":"Toshiba Semiconductor RN4908 series dual NPN/PNP pre-biased transistor, 200 mW, 50 V, 100 mA, SOT-363, Tape & Reel / Cut Tape.","salesMarkdown":"## Dual pre-biased transistor in SOT-363 The Toshiba RN4908,LF(CT integrates one NPN and one PNP pre-biased transistor in a single 6-pin SOT-363 package, saving board space compared to two discrete bias-resistor transistors. Each transistor includes built-in bias resistors: 22 kΩ base resistor (R1) and 47 kΩ base-emitter resistor (R2), eliminating external resistor components for the switching circuit. Rated for 50 V collector-emitter breakdown and 100 mA continuous collector current, with a power dissipation ceiling of 200 mW that sets the thermal budget for the SOT-363 footprint. ## Switching performance and saturation Transition frequency reaches 200 MHz for the NPN side and 250 MHz for the PNP side, supporting switching applications up to the low-MHz range. Vce saturation is 300 mV maximum at 250 µA base current and 5 mA collector current, giving a low on-state voltage drop for logic-level loads. Fully ROHS3 compliant, with no restricted substances above the threshold limits.","metaTitle":"Toshiba RN4908,LF(CT Dual NPN/PNP Pre-Biased, SOT-363","metaDescription":"Toshiba RN4908,LF(CT dual NPN/PNP pre-biased transistor, 200 mW, 50 V, 100 mA, SOT-363. Active, ROHS3. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Power - Max":"200mW","Mounting Type":"Surface Mount","Package / Case":"6-TSSOP, SC-88, SOT-363","Transistor Type":"1 NPN, 1 PNP - Pre-Biased (Dual)","lifecycle_stage":"eol_hot","Resistor - Base (R1)":"22kOhms","Frequency - Transition":"200MHz, 250MHz","Supplier Device Package":"US6","Resistor - Emitter Base (R2)":"47kOhms","Vce Saturation (Max) @ Ib, Ic":"300mV @ 250µA, 5mA","Current - Collector (Ic) (Max)":"100mA","Current - Collector Cutoff (Max)":"500nA","DC Current Gain (hFE) (Min) @ Ic, Vce":"80 @ 10mA, 5V","Voltage - Collector Emitter Breakdown (Max)":"50V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.27","stockQuantity":28,"priceTiers":[{"qty":1,"price":"$0.27000","currency":"USD"},{"qty":10,"price":"$0.18200","currency":"USD"},{"qty":100,"price":"$0.08890","currency":"USD"},{"qty":500,"price":"$0.07414","currency":"USD"},{"qty":1000,"price":"$0.05151","currency":"USD"},{"qty":3000,"price":"$0.04464","currency":"USD"},{"qty":6000,"price":"$0.04141","currency":"USD"},{"qty":9000,"price":"$0.03434","currency":"USD"},{"qty":30000,"price":"$0.03373","currency":"USD"},{"qty":75000,"price":"$0.03030","currency":"USD"},{"qty":150000,"price":"$0.02626","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the RN4908,LF(CT used for?","answer":"This dual NPN/PNP pre-biased transistor is designed for low-current switching applications where built-in bias resistors simplify the BOM. Typical uses include load switches, relay drivers, logic-level translators, and inverter circuits in consumer and industrial electronics."},{"question":"How does RN4908,LF(CT compare to RN4988,LXHF(CT?","answer":"The RN4988,LXHF(CT is a close functional peer with identical R1 (22 kΩ) and R2 (47 kΩ) resistor values, the same 200 mW power rating, 50 V breakdown, and 100 mA collector current. Both are dual NPN/PNP pre-biased transistors in surface-mount packages, making them direct alternatives for the same BOM position."},{"question":"What package does the RN4908,LF(CT come in?","answer":"It is supplied in a 6-pin SOT-363 package (also designated SC-88 or US6), measuring approximately 2.0 mm × 1.25 mm with a 0.65 mm pin pitch. The LF(CT suffix indicates Tape & Reel or Cut Tape packaging options."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/toshiba/RN4908LFCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/toshiba/RN4908LFCT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}