The recommended PCB land pattern for NLCV25T-R22M-EFR can be found in the TDK Corporation's application note or on their website. It typically includes a rectangular pad with a size of around 3.5mm x 2.5mm, with a 1.5mm diameter hole in the center for the inductor's terminal.
The thermal derating of NLCV25T-R22M-EFR is typically handled by reducing the maximum current rating as the ambient temperature increases. TDK provides a thermal derating curve in the datasheet, which shows the maximum current rating at different temperatures. Engineers should ensure that their design stays within the recommended current rating at the expected operating temperature.
The self-resonant frequency (SRF) of NLCV25T-R22M-EFR is not explicitly stated in the datasheet. However, according to TDK's inductor selection guide, the SRF of this inductor is typically in the range of 100-200 MHz. Engineers should consider this when designing their circuit to avoid resonance issues.
While NLCV25T-R22M-EFR is suitable for high-frequency applications, its performance may degrade above 10 MHz due to core losses and skin effect. Engineers should carefully evaluate the inductor's performance at their specific switching frequency and consider alternative inductors if necessary.
To ensure the reliability of NLCV25T-R22M-EFR in a high-reliability application, engineers should follow TDK's recommended storage and handling procedures, ensure proper PCB assembly and soldering, and perform thorough testing and inspection. Additionally, they should consider using inductors with a higher reliability rating, such as those with a longer lifespan or higher temperature rating.
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About TDK
TDK-Lambda is a global supplier of power supplies and related products. It is a subsidiary of TDK Corporation, a leading electronics company based in Japan. TDK-Lambda specializes in designing and manufacturing a wide range of AC-DC power supplies, DC-DC converters, programmable power supplies, and EMC/EMI filters for various industries and applications.
