BT258-500R,127 is a P-channel silicon MOSFET which offered by WeEn Semiconductor. It features high voltage tolerance, low on-resistance, fast switching speed and high performance. This MOSFET has 500V breakdown (BVDSS) and 8A (ID) continuous drain current at the same time with the resistance RDS(on) is 127m? at the same temperature. It offers over voltage protection, low internal gate resistance, fast switching and current operation. The operating temperature range is -55°C to 150°C. This MOSFET can be widely used in low voltage, high frequency inverters, converters and power switching circuit applications.