{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"RN1402,LF","brand":"Toshiba Semiconductor","brandSlug":"toshiba","productSlug":"RN1402~6LF","canonicalUrl":"https://icboms.com/toshiba/RN1402~6LF","factsUrl":"https://icboms.com/api/mcp/products/RN1402%2CLF","rawCanonicalId":null},"summary":{"shortDescription":"Toshiba Semiconductor RN1402,LF NPN pre-biased transistor, 50 V collector-emitter breakdown, 100 mA collector current, 200 mW power dissipation, S-Mini (SOT-23-3) surface-mount package, Tape & Reel.","salesMarkdown":"## Active lifecycle — no end-of-life pressure on this BOM line The RN1402,LF: This simplifies inventory planning for a line that uses this pre-biased transistor in signal-level switching — you are not chasing a sunset part. ROHS3 compliance is confirmed, which keeps the part acceptable across current regulatory markets without exemption tracking. ## Pre-biased NPN — integrated resistors shrink the BOM The resistor divider sets the bias point externally, so you eliminate two discrete resistors from the board — a clean BOM consolidation for high-volume or space-constrained designs. The 50 V collector-emitter breakdown and 100 mA maximum collector current cover general-purpose switching of logic-level loads, relay coils, or small signal lamps. The 200 mW power dissipation limits continuous conduction to light duty — this is a signal transistor, not a pass element. ## S-Mini (SOT-23-3) — a standard footprint for automated assembly The S-Mini package (also known as TO-236-3, SC-59, or SOT-23-3) is a widely used three-lead surface-mount footprint. The 250 MHz transition frequency means it switches fast enough for typical digital interface or low-speed switching applications without introducing propagation delay issues. The reel format is the standard for volume production; the cut tape suits prototype or low-volume builds. ## Saturation and gain — what the numbers mean for the switching decision Vce saturation is specified at 300 mV maximum with a 250 µA base current driving 5 mA collector current. This guarantees the transistor will saturate with a base drive of about 200 µA when switching 10 mA — a ratio that simplifies drive circuit design from a microcontroller GPIO.","metaTitle":"Toshiba RN1402,LF NPN Pre-Biased Transistor, 50V 100mA","metaDescription":"Active NPN pre-biased transistor, 50V Vce, 100mA Ic, 200mW. S-Mini (SOT-23-3) package. Integrated 10k/10k resistors. ROHS3 compliant. Sourced per RFQ.","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":"200 mW","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Transistor Type":"NPN - Pre-Biased","lifecycle_stage":"eol_hot","Resistor - Base (R1)":"10 kOhms","Frequency - Transition":"250 MHz","Supplier Device Package":"S-Mini","Resistor - Emitter Base (R2)":"10 kOhms","Vce Saturation (Max) @ Ib, Ic":"300mV @ 250µA, 5mA","Current - Collector (Ic) (Max)":"100 mA","Current - Collector Cutoff (Max)":"500nA","DC Current Gain (hFE) (Min) @ Ic, Vce":"50 @ 10mA, 5V","Voltage - Collector Emitter Breakdown (Max)":"50 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.21","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.22000","currency":"USD"},{"qty":10,"price":"$0.18200","currency":"USD"},{"qty":100,"price":"$0.09670","currency":"USD"},{"qty":500,"price":"$0.06360","currency":"USD"},{"qty":1000,"price":"$0.04325","currency":"USD"},{"qty":3000,"price":"$0.03901","currency":"USD"},{"qty":6000,"price":"$0.03392","currency":"USD"},{"qty":15000,"price":"$0.02883","currency":"USD"},{"qty":30000,"price":"$0.02714","currency":"USD"},{"qty":75000,"price":"$0.02544","currency":"USD"},{"qty":150000,"price":"$0.02400","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5e97fde5b75aeb3cafeea0515fe59844.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source to RN1402,LF?","answer":"The RN1402,LXHF is the automotive-grade sibling — it shares the same 10 kOhm / 10 kOhm resistor values, 50 V breakdown, 100 mA collector current, and S-Mini package, but adds AEC-Q101 qualification for automotive applications. The standard RN1402,LF drops into the same footprint without board changes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/toshiba/RN1402~6LF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/toshiba/RN1402~6LF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}