Transistor K2129

The K2129 transistor, also known as 2SK2129, is a high-voltage N-Channel Power MOSFET designed for fast switching and efficient power control applications. It offers a drain-source voltage of 800V, 3A drain current, and low on-resistance, making it ideal for SMPS power supplies, motor drivers, solenoid circuits, DC-DC converters, and industrial switching applications.

This TO-220 package MOSFET transistor is widely used in LED TV power boards, inverter circuits, welding machines, UPS systems, and electronic repair projects. The K2129 is known for high-speed switching (tf ≈ 50ns), avalanche protection, and reliable high-voltage performance, making it a trusted choice for technicians and electronics engineers.

Key Features of Transistor K2129:

• Part Number: K2129 / 2SK2129
• Type: N-Channel MOSFET
• Voltage: 800V
• Current: 3A
• Package: TO-220
• Fast Switching Speed
• Low RDS(on)
• High Reliability
• Best for Power Supply Repair

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