NFA18SD207X1A45L - Murata Electronics

NFA18SD207X1A45L Frequently Asked Questions (FAQs)

• What is the recommended PCB land pattern for the NFA18SD207X1A45L?
  Murata provides a recommended PCB land pattern in their application notes, which can be found on their website. The recommended land pattern is a rectangular shape with dimensions of 2.5mm x 1.8mm, with a 0.5mm hole in the center for the inductor's terminal.
• How do I handle the inductor's thermal derating?
  The NFA18SD207X1A45L has a maximum operating temperature of 125°C. To handle thermal derating, you should ensure that the inductor is operated within its specified temperature range. You can use thermal simulation tools or consult with Murata's application notes to determine the inductor's temperature rise under different operating conditions.
• What is the inductor's self-resonant frequency (SRF)?
  The SRF of the NFA18SD207X1A45L is not explicitly stated in the datasheet, but it can be estimated using the inductor's inductance and capacitance values. According to Murata's application notes, the SRF can be calculated using the formula: SRF = 1 / (2 * π * sqrt(L * C)), where L is the inductance and C is the capacitance. For the NFA18SD207X1A45L, the SRF is approximately 150 MHz.
• Can I use the NFA18SD207X1A45L in a high-frequency application?
  The NFA18SD207X1A45L is designed for use in DC-DC converters and other low-frequency applications. While it can be used in high-frequency applications, its performance may degrade due to its relatively high equivalent series resistance (ESR) and low self-resonant frequency. Murata recommends using their high-frequency inductors, such as the LQW18 series, for applications above 10 MHz.
• How do I ensure the inductor's reliability and longevity?
  To ensure the reliability and longevity of the NFA18SD207X1A45L, follow proper storage and handling procedures, avoid exceeding the maximum operating temperature and current ratings, and ensure that the inductor is properly soldered to the PCB. Additionally, consider using Murata's recommended PCB layout and thermal management techniques to minimize thermal stress and vibration.