VHB100W-Q48-S28 - CUI Inc.

VHB100W-Q48-S28 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout and thermal management for optimal performance?
  CUI recommends a PCB layout with a large copper area for heat dissipation, and a thermal management system with a heat sink and thermal interface material to keep the junction temperature below 125°C.
• How does the module handle input voltage transients and spikes?
  The VHB100W-Q48-S28 has built-in input voltage transient protection, which can withstand voltage spikes up to 300V for 100ms. However, it's still recommended to add external protection circuits for extreme transient conditions.
• What is the maximum allowable capacitance for the output filter?
  CUI recommends an output filter capacitance of 10uF or less to ensure stability and prevent oscillations. Exceeding this value may lead to instability or reduced performance.
• Can the module be operated in parallel for higher power applications?
  Yes, the VHB100W-Q48-S28 can be operated in parallel for higher power applications, but it's essential to ensure proper synchronization and current sharing between modules to prevent uneven stress and reduced reliability.
• What is the recommended input fuse rating and type for overcurrent protection?
  CUI recommends a fuse rating of 5A or less, with a slow-blow characteristic to ensure reliable operation and protection against overcurrent conditions.