NTE187 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -60 V
• Collector-Base Voltage, max: -70 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -3 A
• Collector Dissipation: 12.5 W
• DC Current Gain (h_fe): 100 to 220
• Transition Frequency, min: 50 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-202

Here is an image showing the pin diagram of this transistor.The complementary NPN transistor to the NTE187 is the NTE186.The NZT660 (SOT-223) is the SMD version of the NTE187 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the NTE187 with the 2SA636A.