PQP1-D12-S5-M - CUI Inc.

PQP1-D12-S5-M Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal thermal performance?
  CUI Inc recommends a PCB layout with a minimum of 1 oz copper thickness, a 2-layer board with a thermal relief pattern, and a minimum of 10 mm clearance around the module for airflow. A detailed layout guide can be found in the application note AN-045.
• How do I ensure reliable startup and operation in high-temperature environments?
  To ensure reliable startup and operation in high-temperature environments, CUI Inc recommends using a soft-start circuit to reduce inrush current, and ensuring the input voltage is within the specified range. Additionally, the module should be operated within the specified temperature range and derated accordingly.
• What is the maximum allowable capacitance for the output filter?
  The maximum allowable capacitance for the output filter is 220 μF. Exceeding this value may cause instability or oscillation in the output voltage.
• Can I use this module in a redundant or parallel configuration?
  Yes, the PQP1-D12-S5-M can be used in a redundant or parallel configuration. However, it is essential to follow CUI Inc's guidelines for paralleling and redundancy, as outlined in the application note AN-042, to ensure reliable operation and avoid damage to the modules.
• What is the recommended input fuse rating and type?
  CUI Inc recommends using a fuse with a rating of 5 A or less, and a slow-blow type (e.g., Littlefuse 5A/250V) to ensure reliable operation and protection against overcurrent conditions.