2N5401Y Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -150 V
• Collector-Base Voltage, max: -160 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.6 A
• Collector Dissipation: 0.625 W
• DC Current Gain (h_fe): 120 to 240
• Transition Frequency, min: 100 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The 2N5401Y 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 NPN transistor to the 2N5401Y is the 2N5551Y.The 2N5401S (SOT-23), DXT5401 (SOT-89), DZT5401 (SOT-223), KST5401 (SOT-23), MMBT5401 (SOT-23) and PMBT5401 (SOT-23) is the SMD version of the 2N5401Y transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2N5401Y with the 2N5401, 2SA709, 2SA709Y, KSA709 or KSA709Y.