BLM31KN471SH1L - Murata Electronics

BLM31KN471SH1L Frequently Asked Questions (FAQs)

• What is the recommended land pattern for the BLM31KN471SH1L?
  The recommended land pattern for the BLM31KN471SH1L is a rectangular pad with a size of 3.5mm x 2.5mm, with a 0.5mm gap between the pads.
• How do I handle the BLM31KN471SH1L in a high-temperature environment?
  The BLM31KN471SH1L is rated for operation up to 125°C. For high-temperature environments, ensure proper thermal management, and consider derating the inductor's current rating to prevent overheating.
• Can I use the BLM31KN471SH1L in a high-frequency application?
  Yes, the BLM31KN471SH1L is suitable for high-frequency applications up to 1 GHz. However, be aware of the inductor's self-resonant frequency (SRF) and ensure it does not interfere with your application's operating frequency.
• How do I ensure the BLM31KN471SH1L meets my application's EMI requirements?
  To minimize EMI, ensure proper PCB layout, use a shielded enclosure, and consider adding EMI filters or shielding components. Also, follow Murata's recommended layout guidelines and consider using a common-mode choke in conjunction with the BLM31KN471SH1L.
• What is the BLM31KN471SH1L's tolerance for DC bias?
  The BLM31KN471SH1L has a DC bias tolerance of up to 30% of its rated current. Exceeding this tolerance may cause the inductor to saturate, reducing its performance and potentially leading to failure.