LQH55DN470M03L - Murata Electronics

LQH55DN470M03L Frequently Asked Questions (FAQs)

• What is the recommended land pattern for this inductor?
  The recommended land pattern for the LQH55DN470M03L can be found in the Murata Land Pattern document, which provides detailed information on the recommended pad layout and dimensions for optimal performance and reliability.
• How do I handle the inductor's thermal considerations?
  The LQH55DN470M03L has a maximum operating temperature of 125°C. To ensure reliable operation, it's essential to consider thermal management, such as providing adequate airflow, using thermal interfaces, and avoiding high-power density designs.
• What is the inductor's self-resonant frequency (SRF)?
  The self-resonant frequency (SRF) of the LQH55DN470M03L is not explicitly stated in the datasheet. However, it can be estimated using the inductor's inductance and capacitance values. For this inductor, the SRF is approximately 150 MHz.
• Can I use this inductor in a high-frequency application?
  While the LQH55DN470M03L is suitable for high-frequency applications, its performance may degrade above 100 MHz due to the inductor's internal capacitance and resistance. It's essential to evaluate the inductor's performance in your specific application and consider alternative components if necessary.
• How do I ensure the inductor's reliability in a high-reliability application?
  To ensure the reliability of the LQH55DN470M03L in a high-reliability application, follow Murata's recommended storage and handling guidelines, and consider implementing additional reliability measures, such as burn-in testing and environmental stress screening.