The UF840L-TA3-T is an N-channel power MOSFET manufactured by UTC (Unisonic Technologies Co., Ltd.). This MOSFET is designed for high-voltage, high-speed switching applications, offering excellent performance characteristics and reliability. It is commonly used in power supplies, motor control, and other applications where efficient power management is critical.

Applications:

• Switching power supplies (SMPS)
• Motor control circuits
• DC-DC converters
• Uninterruptible power supplies (UPS)
• High-frequency inverters

Features:

• High voltage: Drain-source voltage (VDS) of 800V.
• Low on-resistance: RDS(on) of 1.7 Ohms (typical) at VGS = 10V.
• Fast switching speed: Low gate charge (Qg) for efficient switching.
• Avalanche rated: Capable of handling avalanche energy.
• TO-220F package: Isolated package for enhanced safety and thermal performance.

Benefits:

• Efficient power conversion: Low RDS(on) minimizes power losses, improving overall efficiency.
• High-voltage capability: Suitable for applications with high voltage requirements.
• Fast switching: Reduces switching losses and improves system performance.
• Robust performance: Avalanche rating ensures reliability under transient conditions.
• Simplified thermal management: The isolated TO-220F package simplifies heatsinking.

Additional Details:

The UF840L-TA3-T is an enhancement-mode MOSFET, requiring a positive gate-source voltage (VGS) to turn on. It has a continuous drain current (ID) rating of 4A at 25°C. The gate threshold voltage (VGS(th)) is typically between 2V and 4V. The device's fast switching speed is achieved through its low gate charge and gate resistance. The TO-220F package provides excellent thermal dissipation and isolation, ensuring safe and reliable operation. Consult the UTC datasheet for complete electrical characteristics, application guidelines, and recommended operating conditions. Proper heatsinking is recommended to ensure that the device operates within its specified temperature limits and maintains optimal performance. The UF840L-TA3-T is designed to meet industry standards for safety and reliability, making it a suitable choice for demanding power electronics applications.