{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IMH9AT110","brand":"ROHM Semiconductor","brandSlug":"rohm","productSlug":"IMH9AT110","canonicalUrl":"https://icboms.com/rohm/IMH9AT110","factsUrl":"https://icboms.com/api/mcp/products/IMH9AT110","rawCanonicalId":null},"summary":{"shortDescription":"Rohm IMH9AT110 dual NPN pre-biased transistor, 50 V Vceo, 100 mA Ic, 250 MHz ft, 300 mW, SC-74 SOT-457 surface mount, Tape & Reel.","salesMarkdown":"## 50 V pre-biased dual NPN — the BOM-saver for digital output stages The Rohm IMH9AT110 packs two NPN transistors with integrated bias resistors into a single SC-74 (SOT-457) surface-mount package. Each transistor has a 10 kΩ series base resistor (R1) and a 47 kΩ base-emitter resistor (R2), so you drop two external resistors per channel from the BOM. The 50 V collector-emitter breakdown and 100 mA continuous collector current cover 24 V industrial logic, 12 V automotive relay pre-drivers, and 5 V level-shifting loads. Transition frequency of 250 MHz keeps switching clean for PWM up to several MHz. ## 300 mW total power — watch the derating in a tight layout The 300 mW total power dissipation is shared between the two transistors. In a dense SMT6 layout with limited copper, derating applies above 25 °C. For continuous 5 mA per channel at 50 V Vce, the junction stays well within budget; pushing both channels to 100 mA simultaneously at high Vce will exceed the package ceiling. The SC-74 footprint is small, so thermal coupling between the two dies is close — treat the 300 mW as a hard package limit, not per-transistor. The RoHS3 compliance covers current EU and global regulatory requirements.","metaTitle":"IMH9AT110 Dual NPN Pre-Biased Transistor, 50 V, 100 mA","metaDescription":"Rohm IMH9AT110 dual NPN pre-biased transistor, 50 V Vceo, 100 mA Ic, 250 MHz ft, 300 mW. SC-74 SOT-457 surface mount. Active, 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":"SC-74, SOT-457","Transistor Type":"2 NPN - Pre-Biased (Dual)","lifecycle_stage":"eol_hot","Resistor - Base (R1)":"10kOhms","Frequency - Transition":"250MHz","Supplier Device Package":"SMT6","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":"68 @ 5mA, 5V","Voltage - Collector Emitter Breakdown (Max)":"50V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.39","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.39000","currency":"USD"},{"qty":10,"price":"$0.31400","currency":"USD"},{"qty":100,"price":"$0.21370","currency":"USD"},{"qty":500,"price":"$0.16028","currency":"USD"},{"qty":1000,"price":"$0.12020","currency":"USD"},{"qty":3000,"price":"$0.11019","currency":"USD"},{"qty":6000,"price":"$0.10351","currency":"USD"},{"qty":15000,"price":"$0.09683","currency":"USD"},{"qty":30000,"price":"$0.09450","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/00271d578ffbc7f9b5cca719bf7f9dd5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the equivalent replacement for IMH9AT110?","answer":"The closest functional peer is the IMH11AT110, which substitutes a 10 kΩ base-emitter resistor (R2) for the 47 kΩ on the IMH9AT110. The UMH9NTN and EMH9T2R share the same 10 kΩ / 47 kΩ bias network but are rated at 150 mW total power instead of 300 mW. Verify the bias ratio and power budget before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/rohm/IMH9AT110","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/rohm/IMH9AT110 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}}