CDRH4D28NP-4R7NC - Sumida

CDRH4D28NP-4R7NC Frequently Asked Questions (FAQs)

• What is the recommended land pattern for the CDRH4D28NP-4R7NC?
  The recommended land pattern for the CDRH4D28NP-4R7NC can be found in the Sumida Corporation's application note or by contacting their technical support. A general guideline is to use a land pattern with a pad size of 2.5mm x 1.6mm and a spacing of 1.3mm between pads.
• How do I handle the thermal considerations for the CDRH4D28NP-4R7NC?
  The CDRH4D28NP-4R7NC has a maximum operating temperature of 125°C. Ensure that the PCB design provides adequate thermal relief and consider using thermal vias to dissipate heat. Also, follow the recommended derating curves for the inductor's current rating based on the ambient temperature.
• What is the self-resonant frequency of the CDRH4D28NP-4R7NC?
  The self-resonant frequency of the CDRH4D28NP-4R7NC is not explicitly stated in the datasheet. However, it can be estimated using the inductor's inductance and capacitance values. As a rough estimate, the self-resonant frequency can be calculated using the formula: f_res = 1 / (2 * π * sqrt(L * C)), where L is the inductance and C is the capacitance.
• Can I use the CDRH4D28NP-4R7NC in a high-frequency application?
  The CDRH4D28NP-4R7NC is designed for general-purpose use and may not be suitable for high-frequency applications. The inductor's performance at high frequencies (above 100 MHz) may be affected by its self-resonant frequency, skin effect, and proximity effect. For high-frequency applications, consider using a specialized inductor designed for high-frequency use.
• How do I ensure the CDRH4D28NP-4R7NC meets my specific application's requirements?
  To ensure the CDRH4D28NP-4R7NC meets your application's requirements, review the datasheet and application notes, and consult with Sumida Corporation's technical support if necessary. Consider factors such as operating frequency, current rating, and temperature range to ensure the inductor meets your specific needs.