The thermal resistance (Rth) of the RCS04023K90FKED is 350°C/W, which is not explicitly stated in the datasheet but can be found in Vishay's application notes or by contacting their support team.
While the datasheet doesn't provide explicit information on high-frequency performance, the RCS04023K90FKED is a thick-film resistor, which generally has a self-resonant frequency in the range of 100 MHz to 1 GHz. It may not be the best choice for very high-frequency applications (>1 GHz), but it can be used up to several hundred MHz with careful consideration of parasitic effects.
The RCS04023K90FKED has a maximum operating temperature of 155°C, but it's essential to consider the derating curve provided in the datasheet. Above 125°C, the resistor's power rating decreases significantly, and it's recommended to derate the power accordingly to ensure reliable operation.
The datasheet doesn't provide explicit information on pulse-load capabilities, but Vishay's thick-film resistors are generally designed to handle pulse loads. However, it's crucial to consider the resistor's power rating, pulse duration, and frequency to ensure that the resistor can handle the applied energy without overheating or degrading.
Vishay provides a recommended land pattern and soldering process in their application notes or on their website. It's essential to follow these guidelines to ensure reliable solder joints and prevent damage to the resistor during assembly.
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RCS04023K90FKED Overview
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