KSP44 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 400 V
• Collector-Base Voltage, max: 500 V
• Emitter-Base Voltage, max: 6 V
• Collector Current − Continuous, max: 0.3 A
• Collector Dissipation: 0.625 W
• DC Current Gain (h_fe): 50 to 200
• Transition Frequency, min: 50 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The KSP44 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 KSP44 is the KSP94.The FMMT459 (SOT-23), PMBTA44 (SOT-23) and PMBTA45 (SOT-23) is the SMD version of the KSP44 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the KSP44 with the MPSA44.