HC9-470-R - Eaton

HC9-470-R Frequently Asked Questions (FAQs)

• What is the recommended PCB land pattern for the HC9-470-R?
  The recommended PCB land pattern for the HC9-470-R is a rectangular pad with a size of 3.8mm x 2.5mm, with a 1.3mm diameter hole in the center for the pin. The pad should be solder-mask defined (SMD) with a non-solder-mask-defined (NSMD) pin 1 indicator.
• How do I handle the HC9-470-R's thermal considerations?
  The HC9-470-R has a maximum operating temperature of 125°C. To ensure reliable operation, keep the inductor away from heat sources, use a sufficient copper area for heat dissipation, and consider using a thermal pad or heat sink if necessary.
• What is the self-resonant frequency (SRF) of the HC9-470-R?
  The self-resonant frequency (SRF) of the HC9-470-R is approximately 150 MHz. This is the frequency at which the inductor's impedance peaks due to its internal capacitance and inductance.
• Can I use the HC9-470-R in a high-vibration environment?
  Yes, the HC9-470-R is designed to withstand vibrations up to 10G peak acceleration. However, it's essential to ensure proper PCB mounting and secure the inductor to prevent mechanical stress and damage.
• How do I select the correct inductor for my specific application?
  When selecting an inductor, consider factors such as the operating frequency, current rating, inductance value, DC resistance, and physical size. Ensure the inductor meets your application's requirements and consult the datasheet or contact Coiltronics for guidance if needed.