2SA1943-O
by TOSHIBA(东芝)Toshiba's 2SA1943-O is a PNP power transistor commonly used in audio amplifier output stages. Its through-hole TO-3PL package makes mechanical placement and heat-sink planning part of the board design, alongside the base, collector, and emitter connections. The free KiCad files provide a three-pin symbol paired with TO-3PL_L20.0-W5.0-P5.45-L_1, a footprint containing three pads. A 3D model is included to support inspection of the assembled board. For this record, a real ProtoFlow import was converted and the resulting files were checked in the editor. Confirm the transistor connections against the amplifier schematic before routing. The complete conversion opens directly in ProtoFlow.
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