2N4911 Bipolar Transistor

• Type: NPN
• 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: 25 W
• DC Current Gain (h_fe): 20 to 100
• Transition Frequency, min: 3 MHz
• Operating and Storage Junction Temperature Range: -65 to +200 °C
• Package: TO-66

Here is an image showing the pin diagram of this transistor.The complementary PNP transistor to the 2N4911 is the 2N4899.You can replace the 2N4911 with the 2N4912, 2N5954, 2N5955, 2N6465 or 2N6466.