DR125-151-R - COILTRONICS

DR125-151-R Frequently Asked Questions (FAQs)

• What is the recommended PCB land pattern for the DR125-151-R?
  The recommended PCB land pattern for the DR125-151-R is a rectangular pad with dimensions of 3.8mm x 2.5mm, with a 1.3mm x 1.3mm thermal pad in the center. The pad should be solder-mask defined and have a non-solder-mask-defined (NSMD) pad for the thermal pad.
• How do I handle the thermal pad during reflow soldering?
  During reflow soldering, ensure the thermal pad is connected to a solid copper plane on the PCB to facilitate heat dissipation. Apply a small amount of solder paste to the thermal pad, and make sure the component is properly aligned during placement.
• What is the maximum operating temperature range for the DR125-151-R?
  The maximum operating temperature range for the DR125-151-R is -40°C to +125°C. However, the inductor's performance may degrade above 100°C, and it's recommended to derate the current rating accordingly.
• Can I use the DR125-151-R in a high-vibration environment?
  Yes, the DR125-151-R is designed to withstand high-vibration environments. However, it's essential to ensure the component is properly secured to the PCB using a suitable adhesive or mechanical fastening method to prevent movement or damage.
• How do I determine the equivalent series resistance (ESR) of the DR125-151-R?
  The ESR of the DR125-151-R can be determined by measuring the impedance of the inductor at a specific frequency (e.g., 100 kHz) using an impedance analyzer or a vector network analyzer. The ESR is typically around 0.15 ohms for the DR125-151-R.