The thermal resistance of the WHDR50FET is typically around 1.5°C/W (junction-to-case) and 5°C/W (junction-to-ambient) at a maximum power rating of 50W.
While the WHDR50FET is primarily designed for low-frequency applications, it can be used in high-frequency applications up to 100 kHz with proper thermal management and derating. However, it's essential to consult with Ohmite's application engineers to ensure the device meets your specific requirements.
To ensure reliability, it's crucial to follow Ohmite's recommended derating guidelines for temperature, voltage, and current. Additionally, consider using a heat sink or thermal interface material to maintain a safe operating temperature below 150°C (302°F). Regular cleaning and maintenance can also help prevent thermal runaway and ensure long-term reliability.
Ohmite recommends using a screw-down or clip-mounting method to ensure secure and reliable attachment of the WHDR50FET to a heat sink or PCB. This helps to minimize thermal resistance and prevent mechanical stress on the device.
The WHDR50FET is rated for a maximum voltage of 50V. While it can be used in high-voltage applications, it's essential to ensure that the device is properly derated and protected against voltage transients and spikes. Consult with Ohmite's application engineers to determine the suitability of the WHDR50FET for your specific high-voltage application.
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WHDR50FET Overview
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