Dual PNP pre-biased pair in a single SOT-563 package
The RN2901FE(TE85L,F) integrates two PNP transistors with matched 4.7 kΩ base and emitter bias resistors into a single SOT-563 package (ES6 supplier device code). This is a 2 PNP pre-biased (dual) configuration — each transistor has its own resistor network built in, so the external resistor pair per channel is eliminated from the BOM. The internal resistor values are identical at 4.7 kΩ for both R1 (base) and R2 (emitter-base), giving a consistent on/off threshold across both channels without trimming.
100 mA collector current with 50 V breakdown
Each PNP transistor is rated for 100 mA continuous collector current with a 50 V collector-emitter breakdown voltage. The 300 mV saturation voltage at 250 µA base current and 5 mA collector current means the transistor saturates hard enough to drive small relays, LED indicators, or logic-level loads without excessive power loss.