PN4354 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -60 V
• Collector-Base Voltage, max: -60 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.5 A
• Collector Dissipation: 0.625 W
• DC Current Gain (h_fe): 50 to 500
• Transition Frequency, min: 500 MHz
• Noise Figure, max: 3 dB
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: TO-92
• Electrically Similar to the Popular 2N4354 transistor

The PN4354 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 FMMTA55 (SOT-23) and KST55 (SOT-23) is the SMD version of the PN4354 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the PN4354 with the KSP55, KSP56, MPS4354, MPSW55, MPSW55G, MPSW56 or MPSW56G.