VLF3014AT-4R7MR90 - TDK

VLF3014AT-4R7MR90 Frequently Asked Questions (FAQs)

• What is the recommended land pattern for this inductor?
  The recommended land pattern for the VLF3014AT-4R7MR90 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 2.5mm x 1.5mm, with a 0.5mm hole in the center for the inductor's terminal.
• How do I handle the inductor's thermal derating?
  The thermal derating of the VLF3014AT-4R7MR90 inductor 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 can use this curve to determine the maximum current rating for their specific application.
• What is the inductor's self-resonant frequency?
  The self-resonant frequency of the VLF3014AT-4R7MR90 inductor is not explicitly stated in the datasheet, but it can be estimated using the inductor's inductance value and the parasitic capacitance. Typically, the self-resonant frequency of an inductor is around 10-20 times its operating frequency. For the VLF3014AT-4R7MR90, the self-resonant frequency is likely to be in the range of 100-200 MHz.
• Can I use this inductor in a high-vibration environment?
  The VLF3014AT-4R7MR90 inductor is designed to meet the vibration requirements of IEC 60068-2-6, which means it can withstand vibrations up to 10G. However, it's recommended to consult with TDK Corporation or perform additional testing to ensure the inductor meets the specific vibration requirements of the application.
• How do I solder this inductor?
  The VLF3014AT-4R7MR90 inductor has a soldering temperature rating of 260°C. It's recommended to use a soldering iron with a temperature range of 220-240°C, and to apply a small amount of solder paste to the land pattern before placing the inductor. The soldering process should be completed within 3-5 seconds to avoid overheating the component.