Two NPNs with the bias network built in
The ROHM EMH10T2R packs two NPN pre-biased transistors into a single SOT-563 package, each with 22kΩ resistors on both the base and emitter legs. That means you get a matched pair of switching transistors with the bias network already integrated — no external resistors, no extra board area for the divider string. Each transistor handles up to 100 mA collector current with a 50 V collector-emitter breakdown, and the 250 MHz transition frequency keeps switching clean for general-purpose logic-level and driver applications.
150 mW total power — watch the thermal budget in dense layouts
The total power dissipation for both transistors combined is 150 mW. In a tiny SOT-563 package with no exposed pad, that limits continuous current to well below the 100 mA peak — figure derating to maybe 30-40 mA per transistor if both are on simultaneously in still air. The scorch mark tells you when you've pushed it past the SOA: the part gets hot fast in that small body. For switching loads near the 100 mA mark, keep the duty cycle low or move to a larger package.