Two NPNs with the bias resistors built in
The Infineon BCR133SB6327XT packs two NPN transistors into a single SOT-363 package, each with a 10k series base resistor and a 10k emitter-base resistor already integrated. That means you skip the two external resistors per channel — four parts gone from the BOM. It's rated for 50 V collector-emitter breakdown and 100 mA continuous collector current, with a transition frequency of 130 MHz. The 250 mW power dissipation ceiling covers both transistors combined, so check the thermal budget if both channels run near the limit simultaneously.
Where you'd use a dual pre-biased pair
This part is a natural fit for inverter or driver stages where you need two independent switching channels — think relay or LED drivers, logic-level translators, or simple gate drive for a small MOSFET. The integrated resistors set a fixed base current, so the transistor saturates predictably without extra calculation. The 300 mV Vce saturation at 500 µA base and 10 mA collector is tight enough for low-drop switching at modest loads.
Active, no end-of-life worry
The base product number is BCR133S, and this suffix variant ships in Tape & Reel for automated assembly.