PSK-S60B-24 - CUI Inc.

PSK-S60B-24 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout and thermal management for optimal performance?
  CUI recommends a PCB layout with a solid ground plane and thermal vias to dissipate heat. A minimum of 2 oz copper thickness is recommended. Additionally, a thermal interface material (TIM) with a thermal conductivity of 1 W/m-K or higher is suggested between the module and the heat sink.
• How do I ensure reliable start-up and shutdown of the power supply?
  To ensure reliable start-up and shutdown, CUI recommends a soft-start circuit to limit inrush current and a shutdown circuit to prevent voltage spikes. Additionally, a minimum load of 10% is recommended to ensure stable operation.
• What is the derating curve for high ambient temperatures?
  CUI provides a derating curve in the datasheet, which indicates that the output power should be reduced by 2.5% per degree Celsius above 40°C to ensure reliable operation.
• Can I use this power supply in a high-vibration environment?
  Yes, the PSK-S60B-24 is designed to meet the vibration requirements of IEC 60068-2-6, but CUI recommends consulting with their application engineers to ensure the power supply is properly secured and mounted to withstand the specific vibration environment.
• What is the MTBF (Mean Time Between Failures) of this power supply?
  CUI estimates the MTBF of the PSK-S60B-24 to be approximately 550,000 hours at 25°C, calculated according to MIL-HDBK-217F.