2N6427 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 40 V
• Collector-Base Voltage, max: 40 V
• Emitter-Base Voltage, max: 12 V
• Collector Current − Continuous, max: 0.5 A
• Collector Dissipation: 0.625 W
• DC Current Gain (h_fe): 20000 to 200000
• Noise Figure, max: 3 dB
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The 2N6427 is manufactured in a plastic TO-92 case. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the emitter, base, and collector leads.
Here is an image showing the pin diagram of this transistor.The 2SC3912 (SOT-23), 2SC3913 (SOT-23), 2SC3914 (SOT-23), 2SC3915 (SOT-23) and MMBT6427 (SOT-23) is the SMD version of the 2N6427 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2N6427 with the KSP05, KSP06, MPS650, MPS650G, MPS651, MPS651G, MPSA05, MPSA05G, MPSA06, MPSA06G, MPSA28, MPSA28G, MPSW01A, MPSW01AG, MPSW05, MPSW05G, MPSW06, MPSW06G, ZTX690B or ZTX692B.