BC849A Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 30 V
• Collector-Base Voltage, max: 30 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 220
• 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 BC849A transistor can have a current gain of 110 to 220. The gain of the BC849 will be in the range from 110 to 800, for the BC849B it will be in the range from 200 to 450, for the BC849C it will be in the range from 420 to 800.The complementary PNP transistor to the BC849A is the BC859A.You can replace the BC849A with the 2SC1623, 2SC2712, 2SC2859, 2SC3325, 2SC3441, 2SC3912, 2SC3913, 2SC3914, 2SC3915, 2SC4210, 2SC4738, 2SD602A, BC817, BC817-16, BC847, BC847A, BC848, BC848A, BC850, BC850A, BCV71, BCW31, BCW65, BCW65A, BCW66, BCW66F, BCX19, FMMT2222, FMMT2222A, FMMT2222AR, FMMT2222R, FMMT3904, FMMT449, FMMT491, FMMT491Q, FMMT619, FMMTA05, KN2222AS, KN2222S, KN3904S, KSC1623, KSC2859, KST05, KST2222A, KST3904, KST4401, KTC3265, KTC3875, KTC3875S, KTC3876, KTC3876S, KTC8050S, KTN2222AS, KTN2222S, MMBT100, MMBT2222, MMBT2222A, MMBT2484, MMBT3904, MMBT3904L, MMBT3904LT1, MMBT3904LT1G, MMBT3904LT3, MMBT3904LT3G, MMBT4401, MMBTA05, PMBS3904, PMBT2222, PMBT2222A, PMBT3904, PMBT4401, PMST2222, PMST2222A, SMBTA05 or TMBT3904.