Parametric limits for the bench
The RN1106MFV,L3F: Rated for a maximum collector-emitter breakdown of 50 V and a continuous collector current of 100 mA, with a power dissipation ceiling of 150 mW. The saturation voltage is specified at 300 mV maximum when driven with 500 µA base current into 5 mA collector current — useful for low-voltage switching where headroom is tight. Collector cutoff current is a maximum 500 nA, so leakage won't pull a logic input high in off-state.
SOT-723 footprint and hand-solderability
Housed in a SOT-723 package (Toshiba's VESM designation), this is a very small surface-mount package — roughly 1.2 mm × 1.2 mm with a 0.4 mm lead pitch. It's hand-solderable with a fine-tip iron and magnification, but the small pad size means a stencil and reflow profile give more consistent results for any volume above a handful of boards.
Availability and current pricing confirmed at RFQ time.