The TK4A65D(STA4,Q) is a 650V, 4A N-channel power MOSFET from Toshiba Semiconductor and Storage. This device is designed for high-efficiency power switching applications, offering a balance of low on-resistance and fast switching speed. The STA4,Q designation likely refers to specific manufacturing or testing variations of the standard TK4A65D model, potentially indicating enhanced quality or reliability for specific applications. Its robust design ensures reliability and efficiency in demanding power electronics environments.

Applications

• Power supplies (SMPS)
• Power factor correction (PFC) circuits
• DC-DC converters
• Lighting ballasts
• Motor control circuits

Features

• VDSS (Drain-Source Voltage): 650V
• ID (Drain Current): 4A
• RDS(on) (Drain-Source On-Resistance): 1.75 Ω (typical)
• Gate Threshold Voltage: 2.0 to 4.0 V
• Channel Type: N-Channel
• Package: TO-220SIS
• Operating Temperature Range: -55°C to 150°C
• Fast Switching Speed: Reduces switching losses.
• Low On-Resistance: Minimizes conduction losses.
• Avalanche Energy Guaranteed Offers a good ruggedness.

Benefits

• High Efficiency: The combination of low on-resistance and fast switching speed contributes to high efficiency in power conversion applications.
• Reduced Power Loss: Lower RDS(on) minimizes conduction losses, leading to cooler operation and improved system reliability.
• Simplified Thermal Management: Reduced power dissipation simplifies heatsink requirements, saving space and cost.
• Improved System Reliability: Robust design and high avalanche energy capability enhance system reliability and longevity.
• High-Speed Switching: Fast switching characteristics allow for higher frequency operation, reducing the size of passive components and improving power density.

Additional Details

The TK4A65D(STA4,Q) utilizes advanced trench MOSFET technology to achieve its superior performance. This technology enables a higher cell density, resulting in lower on-resistance and improved switching characteristics. The device is also designed to withstand high avalanche energy, making it suitable for applications with inductive loads. Its TO-220SIS package ensures easy mounting and effective heat dissipation. The STA4,Q designation suggests enhanced testing or quality control during manufacturing. This MOSFET is compliant with RoHS standards, ensuring environmental friendliness.