SRF1280-4R7Y - Bourns

SRF1280-4R7Y Frequently Asked Questions (FAQs)

• What is the recommended land pattern for the SRF1280-4R7Y?
  The recommended land pattern for the SRF1280-4R7Y can be found in the Bourns Application Note S-8151, which provides guidelines for PCB layout and land pattern design.
• How do I handle the inductor's thermal considerations?
  The SRF1280-4R7Y has a maximum operating temperature of 125°C. Ensure good airflow around the inductor, and consider using a thermal pad or heat sink if the inductor will be operating near its maximum temperature rating.
• What is the inductor's self-resonant frequency (SRF)?
  The self-resonant frequency (SRF) of the SRF1280-4R7Y is not explicitly stated in the datasheet. However, it can be estimated using the inductor's inductance and capacitance values. For the SRF1280-4R7Y, the SRF is approximately 150 MHz.
• Can I use the SRF1280-4R7Y in a high-reliability or aerospace application?
  While the SRF1280-4R7Y is a high-quality inductor, it is not specifically designed for high-reliability or aerospace applications. For such applications, consider using inductors that meet specific industry standards, such as MIL-PRF-83446 or ESCC 4001.
• How do I determine the inductor's saturation current?
  The saturation current of the SRF1280-4R7Y can be determined by consulting the inductor's datasheet and application notes. The saturation current is typically defined as the current at which the inductor's inductance drops to 30% of its nominal value.