NTE123 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 40 V
• Collector-Base Voltage, max: 75 V
• Emitter-Base Voltage, max: 6 V
• Collector Current − Continuous, max: 0.8 A
• Collector Dissipation: 0.8 W
• DC Current Gain (h_fe): 100 to 300
• Transition Frequency, min: 300 MHz
• Noise Figure, max: 4 dB
• Operating and Storage Junction Temperature Range: -65 to +200 °C
• Package: TO-39

Here is an image showing the pin diagram of this transistor.The BCW66 (SOT-23), DXT2222A (SOT-89), DZT2222A (SOT-223), FJX2222A (SOT-323), FMMT2222A (SOT-23), FMMT2222AR (SOT-23), KN2222AS (SOT-23), KST2222A (SOT-23), KTN2222AS (SOT-23), KTN2222AU (SOT-323), MMBT100 (SOT-23), MMBT2222AT (SOT-523F), MMST2222A (SOT-323), PMBT2222A (SOT-23) and PMST2222A (SOT-23) is the SMD version of the NTE123 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the NTE123 with the 2N2219A, 2N3019, 2N3107, 2N3109, 2N4032 or 2N4033.