{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"UMG1NTR","brand":"ROHM Semiconductor","brandSlug":"rohm","productSlug":"UMG1NTR","canonicalUrl":"https://icboms.com/rohm/UMG1NTR","factsUrl":"https://icboms.com/api/mcp/products/UMG1NTR","rawCanonicalId":null},"summary":{"shortDescription":"Rohm UMG1NTR dual NPN pre-biased transistor, 50 V Vce breakdown, 100 mA Ic max, 250 MHz transition frequency, 300 mW power dissipation, 22 kΩ base and emitter-base resistors, SOT-353 / UMT5 surface-mount package.","salesMarkdown":"## What this dual pre-biased transistor brings to the board The Rohm UMG1NTR packs two NPN transistors with integrated bias resistors into a single SOT-353 (UMT5) package. Each transistor has a 22 kΩ base resistor (R1) and a 22 kΩ emitter-base resistor (R2), so no external bias network is needed — just connect the base drive and collector load. The 50 V collector-emitter breakdown and 100 mA continuous collector current cover common 12 V and 24 V industrial logic-level switching, relay drivers, and inverter stages. Transition frequency of 250 MHz is fast enough for typical PWM and serial-data line buffering up to a few megahertz. The 300 mW maximum power dissipation is the thermal ceiling for the tiny SOT-353 body. At 50 V and 100 mA you are at the absolute edge of the SOA; in practice, derate to keep junction temperature below 150 °C. For continuous 10 mA per channel at 5 V supply, dissipation is about 50 mW — plenty of margin. If you are driving both channels near 100 mA, check the total against the 300 mW limit and watch the copper area under the package. ## Built-in bias resistors — BOM simplification The 22 kΩ base and 22 kΩ emitter-base resistors are laser-trimmed on the die. The base resistor sets the input current for a given drive voltage; the emitter-base resistor speeds turn-off by shunting stored charge. For a 5 V logic drive, base current is roughly (5 V - 0.7 V) / 22 kΩ ≈ 195 µA, which with a minimum hFE of 56 at 5 mA gives plenty of saturation drive for loads up to 10 mA. The saturation voltage is 300 mV maximum at 500 µA base and 10 mA collector — clean logic-level switching. ## Lifecycle and compliance It is fully ROHS3 compliant.","metaTitle":"UMG1NTR Dual NPN Pre-Biased Transistor, 50 V, 100 mA","metaDescription":"UMG1NTR dual NPN pre-biased transistor from Rohm. 50 V Vce, 100 mA Ic, 250 MHz ft, 300 mW max. Built-in 22 kΩ resistors. SOT-353 surface mount. RoHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Power - Max":"300mW","Mounting Type":"Surface Mount","Package / Case":"5-TSSOP, SC-70-5, SOT-353","Transistor Type":"2 NPN - Pre-Biased (Dual)","lifecycle_stage":"eol_hot","Resistor - Base (R1)":"22kOhms","Frequency - Transition":"250MHz","Supplier Device Package":"UMT5","Resistor - Emitter Base (R2)":"22kOhms","Vce Saturation (Max) @ Ib, Ic":"300mV @ 500µA, 10mA","Current - Collector (Ic) (Max)":"100mA","Current - Collector Cutoff (Max)":"500nA","DC Current Gain (hFE) (Min) @ Ic, Vce":"56 @ 5mA, 5V","Voltage - Collector Emitter Breakdown (Max)":"50V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.45","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.45000","currency":"USD"},{"qty":10,"price":"$0.33600","currency":"USD"},{"qty":100,"price":"$0.20950","currency":"USD"},{"qty":500,"price":"$0.14332","currency":"USD"},{"qty":1000,"price":"$0.11024","currency":"USD"},{"qty":3000,"price":"$0.09922","currency":"USD"},{"qty":6000,"price":"$0.09370","currency":"USD"},{"qty":15000,"price":"$0.08544","currency":"USD"},{"qty":30000,"price":"$0.07992","currency":"USD"},{"qty":75000,"price":"$0.07800","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d833aad762416b6b90a9445d537eb234.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is UMG1NTR RoHS compliant?","answer":"Yes, the UMG1NTR is rated ROHS3 Compliant per its lifecycle record."},{"question":"What is the difference between UMG1NTR and the FMA1AT148?","answer":"The FMA1AT148 is a dual PNP pre-biased transistor (emitter-coupled pair) with the same 22 kΩ bias resistors, 50 V breakdown, 100 mA current, and 250 MHz transition frequency. The UMG1NTR uses dual NPNs. For a complementary PNP pair in the same footprint, the FMA1AT148 is the direct polarity swap; for a single NPN/PNP combo, the IMD2AT108 is an option. Both are surface-mount in similar SOT-353 / SMT5 packages."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/rohm/UMG1NTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/rohm/UMG1NTR 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}}