Dual PNP pre-biased in SOT-553
The Toshiba RN2712JE(TE85L,F) is a dual PNP pre-biased transistor in an emitter-coupled configuration. It integrates two PNP transistors with a 22 kΩ base resistor on each side, eliminating the need for external bias resistors and saving board space in compact designs.
The 200 MHz fT is fast enough for most low-speed switching and signal conditioning, but not for high-frequency RF output stages.
Housed in a 5-pin SOT-553 package (supplier device package ESV), this is a surface-mount part. The SOT-553 footprint is compact—roughly 1.6 mm × 1.6 mm—so it fits tightly packed PCBs.
It is RoHS compliant, so no conflict with EU or similar regulatory requirements.