DLW21SN670HQ2L - Murata Electronics

DLW21SN670HQ2L Frequently Asked Questions (FAQs)

• What is the recommended PCB land pattern for the DLW21SN670HQ2L?
  The recommended PCB land pattern for the DLW21SN670HQ2L can be found in the Murata datasheet or application notes. Typically, it involves 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.
• How do I handle the inductor's thermal considerations?
  The DLW21SN670HQ2L has a maximum operating temperature of 125°C. Ensure good airflow around the inductor, and consider using a thermal pad or heat sink if the inductor is expected to operate near its maximum temperature rating.
• What is the inductor's self-resonant frequency (SRF)?
  The SRF of the DLW21SN670HQ2L is not explicitly stated in the datasheet. However, based on similar inductors, the SRF is typically in the range of 100-200 MHz. For precise values, consult with Murata's application engineers or perform your own measurements.
• Can I use the DLW21SN670HQ2L in a high-vibration environment?
  The DLW21SN670HQ2L is a surface-mount inductor, and its mechanical robustness is suitable for most applications. However, if your design requires extreme vibration resistance, consider using a more specialized inductor or consulting with Murata's engineers for customized solutions.
• How do I ensure the inductor's reliability in high-temperature applications?
  To ensure reliability, follow the recommended storage and operating temperature ranges, and avoid exposing the inductor to extreme temperatures during soldering or rework. Also, consider using a thermally conductive adhesive or thermal interface material to improve heat dissipation.