CDRH127/LDNP-470MC - Sumida

CDRH127/LDNP-470MC Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the CDRH127/LDNP-470MC?
  A symmetrical layout with a solid ground plane and minimal track length is recommended to minimize electromagnetic interference (EMI) and ensure optimal performance.
• How do I ensure the inductor's self-resonant frequency (SRF) does not affect my circuit's performance?
  Choose an operating frequency below the SRF (typically above 100 MHz) and use a series resistor to dampen the resonance. You can also use a shielded inductor or add a bypass capacitor to mitigate the effect.
• What is the maximum allowable voltage across the inductor, and how does it affect the inductance value?
  The maximum allowable voltage is 50V. Exceeding this voltage can cause the inductance value to decrease and may lead to inductor failure. Ensure your circuit design stays within the recommended voltage range.
• How do I handle the inductor's temperature coefficient and its impact on inductance value?
  The temperature coefficient is -0.05%/°C. To minimize the impact, use a thermally stable inductor, ensure good airflow, and consider using a temperature-compensated inductor or a thermistor in your design.
• What is the recommended storage and handling procedure to prevent damage to the inductor?
  Store the inductor in a dry, cool place, away from direct sunlight and moisture. Handle the inductor by the body, avoiding touching the leads or core. Use anti-static packaging and follow ESD precautions during assembly.