SLR1075-121KEC - COILCRAFT

SLR1075-121KEC Frequently Asked Questions (FAQs)

• What is the recommended PCB land pattern for the SLR1075-121KEC?
  Coilcraft provides a recommended PCB land pattern in their application notes, which can be found on their website. The recommended land pattern is a rectangular pad with dimensions of 3.8 mm x 2.5 mm, with a 1.3 mm x 1.3 mm thermal pad in the center.
• How do I handle the SLR1075-121KEC's high self-resonant frequency (SRF) in my design?
  To minimize the impact of the high SRF, ensure that the inductor is used below its SRF. You can also use a series resistor or a parallel capacitor to dampen the resonance. Additionally, consider using a shielded inductor or a different inductor with a lower SRF if possible.
• What is the maximum operating temperature range for the SLR1075-121KEC?
  The maximum operating temperature range for the SLR1075-121KEC is -40°C to +125°C. However, the inductor's characteristics, such as inductance and Q, may vary with temperature. Be sure to check the datasheet for temperature-related derating information.
• Can I use the SLR1075-121KEC in a high-vibration or high-shock environment?
  The SLR1075-121KEC is a surface-mount device and may not be suitable for high-vibration or high-shock environments. Coilcraft recommends using their radial-leaded inductors, such as the RA series, for applications that require high mechanical robustness.
• How do I ensure the SLR1075-121KEC is properly soldered to the PCB?
  Follow standard surface-mount soldering practices, such as using a soldering iron with a temperature of 245°C to 260°C, and applying a small amount of solder paste to the PCB pads. Ensure the inductor is properly aligned with the PCB pads and that the solder joints are clean and free of oxidation.