CLF7045T-470M - TDK

CLF7045T-470M Frequently Asked Questions (FAQs)

• What is the recommended PCB land pattern for the CLF7045T-470M?
  The recommended PCB land pattern for the CLF7045T-470M can be found in the TDK Corporation's application note or on their website. It typically includes a rectangular pad with a size of around 4.5mm x 3.5mm, with a 1.5mm diameter hole in the center for the inductor's terminal.
• How do I handle the inductor's thermal derating?
  The CLF7045T-470M's thermal derating is typically handled by reducing the maximum current rating as the ambient temperature increases. TDK Corporation provides a thermal derating curve in the datasheet, which shows the maximum current rating at different temperatures. Engineers should ensure that their design stays within the recommended current rating at the expected operating temperature.
• What is the inductor's self-resonant frequency (SRF)?
  The self-resonant frequency (SRF) of the CLF7045T-470M is not explicitly stated in the datasheet, but it can be estimated using the inductor's inductance value and the parasitic capacitance. Typically, the SRF of a similar inductor is around 100-200 MHz. However, it's recommended to consult with TDK Corporation or perform measurements to determine the exact SRF.
• Can I use the CLF7045T-470M in a high-frequency application?
  The CLF7045T-470M is designed for general-purpose use and may not be suitable for high-frequency applications above 100 MHz. TDK Corporation recommends using their high-frequency inductors, such as the CLF-6043T series, for applications above 100 MHz.
• How do I ensure the inductor's reliability and lifespan?
  To ensure the reliability and lifespan of the CLF7045T-470M, engineers should follow proper storage and handling procedures, avoid exceeding the maximum ratings, and ensure that the operating conditions are within the recommended specifications. Additionally, TDK Corporation recommends using their inductors in a well-ventilated area, away from moisture and extreme temperatures.