4922R-27L - API Delevan

4922R-27L Frequently Asked Questions (FAQs)

• What is the recommended PCB land pattern for the 4922R-27L?
  The recommended PCB land pattern for the 4922R-27L can be found in the API Delevan application note AN-013, which provides a detailed layout and footprint recommendation for optimal performance and reliability.
• How does the 4922R-27L perform in high-temperature environments?
  While the datasheet specifies an operating temperature range of -40°C to +125°C, API Delevan recommends derating the inductor's current rating by 1.5% per degree Celsius above 80°C to ensure reliable operation in high-temperature environments.
• What is the self-resonant frequency (SRF) of the 4922R-27L?
  The SRF of the 4922R-27L is not explicitly stated in the datasheet, but it can be estimated to be around 150-200 MHz based on the inductor's physical characteristics and materials. However, it's recommended to consult with API Delevan's application engineers for a more accurate SRF value.
• Can the 4922R-27L be used in high-reliability or military applications?
  Yes, the 4922R-27L is designed to meet the requirements of high-reliability and military applications. API Delevan offers a range of screening options, including MIL-PRF-83446 and MIL-PRF-39007, to ensure the inductor meets the necessary standards for these applications.
• What is the recommended soldering profile for the 4922R-27L?
  API Delevan recommends a soldering profile with a peak temperature of 260°C (500°F) and a dwell time of 10-15 seconds to ensure reliable solder joints. It's also recommended to use a solder with a melting point above 217°C (423°F) to prevent thermal damage to the inductor.