DRQ73-470-R - Eaton

DRQ73-470-R Frequently Asked Questions (FAQs)

• What is the recommended PCB layout and land pattern for optimal performance?
  Coiltronics recommends a PCB layout with a minimum of 1.5 mm clearance around the inductor and a land pattern with a 1.1 mm diameter pad for the terminals. A symmetrical layout and a solid ground plane are also recommended to minimize electromagnetic interference.
• How does the inductor perform in high-temperature environments?
  The DRQ73-470-R is rated for operation up to 125°C, but its inductance value may decrease by up to 20% at high temperatures. It's essential to consider derating and thermal management in high-temperature applications.
• What is the self-resonant frequency (SRF) of the inductor?
  The SRF of the DRQ73-470-R is approximately 150 MHz, which is not explicitly stated in the datasheet. This information is crucial for high-frequency circuit design.
• Can the inductor be used in a gapped configuration for improved saturation current handling?
  Yes, the DRQ73-470-R can be used in a gapped configuration to increase its saturation current handling. However, this may affect its inductance value and require additional design considerations.
• What is the recommended storage and handling procedure to prevent damage?
  Coiltronics recommends storing the inductors in a dry, cool place, away from direct sunlight and moisture. Handling should be done with care to avoid mechanical stress, and the inductors should not be bent or flexed excessively.