pdtc144e晶体管的PDF资料 PDTC144E制造商 : Philips Semiconductors 说明 : resistor-equipped transistors; PDTC144E制造商 : Semiconductors说明 : resistor-equipped transistors; PDTC144E制造商 : NXP Semiconductors说明 : NPN resistor-equipped transistors; R1 = 47 k ohm, R2 = 47 k ohm