The recommended PCB land pattern for the DR124-100-R is a rectangular pad with a size of 4.5mm x 3.5mm, with a 1.5mm diameter hole in the center for the pin. The pad should be 0.5mm thick and have a solder mask clearance of 0.5mm.
The DR124-100-R is rated for operation up to 125°C, but it's recommended to derate the current rating by 1.5% per degree Celsius above 80°C to ensure reliable operation. Consult the manufacturer's guidelines for high-temperature applications.
To ensure proper soldering, use a soldering iron with a temperature range of 250°C to 300°C. Apply a small amount of solder paste to the PCB pad, and then place the inductor on the pad. Use a gentle touch to avoid damaging the component. Soldering time should be limited to 3-5 seconds to prevent overheating.
The ESR of the DR124-100-R is not explicitly stated in the datasheet, but it can be estimated to be around 0.1 ohms to 0.2 ohms based on the inductor's design and materials. Consult the manufacturer or a reliable source for a more accurate value.
The DR124-100-R is designed for use in DC-DC converters and other power supply applications up to 1 MHz. While it can be used in high-frequency applications, its performance may degrade above 1 MHz due to increased core losses and skin effect. Consult the manufacturer's guidelines for high-frequency applications.
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