BC850 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 45 V
• Collector-Base Voltage, max: 50 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.1 A
• Collector Dissipation: 0.25 W
• DC Current Gain (h_fe): 110 to 800
• Transition Frequency, min: 150 MHz
• Noise Figure, max: 1.2 dB
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: SOT-23

Here is an image showing the pin diagram of this transistor.The BC850 transistor can have a current gain of 110 to 800. The gain of the BC850A will be in the range from 110 to 220, for the BC850B it will be in the range from 200 to 450, for the BC850C it will be in the range from 420 to 800.The complementary PNP transistor to the BC850 is the BC860.You can replace the BC850 with the 2SC3912, 2SC3913, 2SC3914, 2SC3915, BC846, BC847, FMMT619, FMMT620, FMMTA05, FMMTA06, KST05, KST06, MMBTA05, MMBTA06, PMBTA06, SMBTA05 or SMBTA06.