but18f transistor of datasheet pdf

BUT18F
Manufacturer : Inchange Semiconductor Company Limited
Description : Silicon Power Transistors

BUT18F
Manufacturer : PHILIPS[Philips Semiconductors]
Description : Silicon diffused power transistors

BUT18F
Manufacturer : Philips Semiconductors
Description : Silicon Diffused Power Transistor(??????????????

BUT18F
Manufacturer : Philips Semiconductors
Description : Silicon diffused power transistors

BUT18F
Manufacturer : Philips
Description : Silicon diffused power transistors