2N6554 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -60 V
• Collector-Base Voltage, max: -60 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -1 A
• Collector Dissipation: 10 W
• DC Current Gain (h_fe): 80 to 300
• Transition Frequency, min: 375 MHz
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: TO-202

Here is an image showing the pin diagram of this transistor.The complementary NPN transistor to the 2N6554 is the 2N6551.The 2SA1364 (SOT-89), FMMTA55 (SOT-23), KST55 (SOT-23) and MMBT4354 (SOT-23) is the SMD version of the 2N6554 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2N6554 with the 2N6555 or 2N6556.