MPS651 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 60 V
• Collector-Base Voltage, max: 80 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 2 A
• Collector Dissipation: 0.625 W
• DC Current Gain (h_fe): 75
• Transition Frequency, min: 75 MHz
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: TO-92

The MPS651 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 complementary PNP transistor to the MPS651 is the MPS751.The BSP51 (SOT-223), FMMT491 (SOT-23), FMMT491Q (SOT-23), KTC4378 (SOT-89), KTC4378GR (SOT-89) and KTC4378Y (SOT-89) is the SMD version of the MPS651 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the MPS651 with the MPS651G.The MPS651G transistor is the lead-free version of the MPS651.