SDR1307A-181K - Bourns

SDR1307A-181K Frequently Asked Questions (FAQs)

• What is the recommended PCB land pattern for SDR1307A-181K?
  Bourns provides a recommended PCB land pattern in their application note AN204, which can be found on their website. The recommended land pattern ensures proper soldering and thermal management.
• How do I ensure the inductor's magnetic field does not interfere with nearby components?
  To minimize magnetic field interference, keep the inductor at least 5 mm away from sensitive components, such as oscillators, antennas, or magnetically sensitive devices. You can also use shielding techniques, like copper pours or magnetic shields, to contain the magnetic field.
• What is the maximum allowed voltage across the inductor?
  Although the datasheet specifies a rated current, it does not explicitly state the maximum allowed voltage. As a general rule, do not exceed 1.5 times the rated voltage (in this case, 1.5 x 18V = 27V) to ensure the inductor's reliability and prevent damage.
• Can I use the SDR1307A-181K in a high-temperature environment?
  The SDR1307A-181K is rated for operation up to 125°C. However, the inductor's performance may degrade at higher temperatures. If your application requires operation above 125°C, consider using a high-temperature-rated inductor or consulting with Bourns' application engineers for guidance.
• How do I handle the inductor's DC resistance (DCR) in my design?
  The DCR of the SDR1307A-181K is specified in the datasheet. To ensure accurate design calculations, use the DCR value to account for power losses and heat generation in your circuit. You can also use online tools or simulation software to help with the design process.