2SA2184 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -550 V
• Collector-Base Voltage, max: -550 V
• Emitter-Base Voltage, max: -7 V
• Collector Current − Continuous, max: -1 A
• Collector Dissipation: 20 W
• DC Current Gain (h_fe): 80 to 300
• Transition Frequency, min: 27 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-252

Here is an image showing the pin diagram of this transistor.Sometimes the "2S" prefix is not marked on the package - the 2SA2184 might only be marked "A2184".