BDY23, 180 T2 BDY24, 181 T2 BDY25, 182 T2 NPN SILI.
BDY24C - Bipolar NPN Device
BDY24 - Silicon NPN Power Transistor
BDY24B - Bipolar NPN Device
BDY24 - (BDY23 - BDY25)NPN SILICON TRANSISTORS