BC378-7 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 25 V
• Collector-Base Voltage, max: 30 V
• Emitter-Base Voltage, max: 6 V
• Collector Current − Continuous, max: 1.2 A
• Collector Dissipation: 0.375 W
• DC Current Gain (h_fe): 125 to 260
• Transition Frequency, min: 300 MHz
• Operating and Storage Junction Temperature Range: -65 to +175 °C
• Package: TO-18

Here is an image showing the pin diagram of this transistor.The BC378-7 transistor can have a current gain of 125 to 260. The gain of the BC378 will be in the range from 75 to 260, for the BC378-6 it will be in the range from 75 to 150.The complementary PNP transistor to the BC378-7 is the BC298-7.The 2SC2883 (SOT-89), 2SC3265 (SOT-23), 2SC4210 (SOT-23), 2SD874 (SOT-89), 2SD874-R (SOT-89), BCX20 (SOT-23), KSC3265 (SOT-23), KTC3265 (SOT-23), KTC4376 (SOT-89) and KTC8050S (SOT-23) is the SMD version of the BC378-7 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the BC378-7 with the BC377 or BC377-7.