Dual PNP in a 1.6×1.6 mm footprint
The ROHM EMT1T2R packs two matched PNP transistors into a single SOT-563 package (also designated EMT6), saving board area compared to two discrete SOT-23s. Each transistor is rated for 50 V collector-emitter breakdown and 150 mA continuous collector current, with a transition frequency of 140 MHz — fast enough for low-frequency switching regulators, signal-level inverters, and current-source pairs in 24 V or 48 V industrial rails.
Package options for prototype and production
The surface-mount SOT-563 case measures roughly 1.6 mm × 1.6 mm, with a 0.5 mm pitch — verify the land pattern against the EMT6 supplier device package drawing before layout.
Key ratings for BOM fit
The 50 V Vceo breakdown sets the maximum supply rail — comfortable on 24 V systems, marginal on 48 V without derating. The 150 mA collector current handles small-signal loads; for higher current the 150 mW power limit becomes the binding constraint. Vce saturation is 500 mV max at 5 mA base, 50 mA collector — typical for a small-signal PNP, so budget the drop in low-voltage paths.