2N4400
NTE ELECTRONICS 2N4400 晶体管, NPN, 40V
The is a 40V NPN silicon Transistor capable of 625mW power dissipation and 600mA collector current. The NTE123AP is designed for audio amplifier and switching applications. It is complementary to NTE159.
Newark:
Bipolar BJT Single Transistor, NPN, 40 V, 250 MHz, 625 mW, 600 mA, 50 hFE