BC184 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 30 V
• Collector-Base Voltage, max: 45 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.1 A
• Collector Dissipation: 0.35 W
• DC Current Gain (h_fe): 130
• Transition Frequency, min: 150 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The BC184 is manufactured in a plastic TO-92 case. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the collector, base, and emitter leads.
Here is an image showing the pin diagram of this transistor.You can replace the BC184 with the 2N5818, BC171B, BC182B, BC183B, BC183C, BC184B, BC184C, BC237B, BC237C, BC337-25, BC337-40, BC413, BC413B, BC413C, BC414, BC414B, BC414C, BC445B, BC485B, BC487B, BC517, BC547B, BC547C, BC548B, BC548C, BC549B, BC549C, BC549CG, BC550B, BC550C or BC550CG.