EEUFS1J561 - Panasonic

EEUFS1J561 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for EEUFS1J561 to minimize ESR?
  Panasonic recommends a PCB layout with a large copper area under the capacitor to reduce ESR. A minimum of 2oz copper thickness is recommended. Additionally, vias should be placed under the capacitor to connect to the internal planes to further reduce ESR.
• How does the EEUFS1J561 behave under high-frequency conditions?
  The EEUFS1J561 is designed to operate at high frequencies, but its impedance increases with frequency. Panasonic recommends using impedance vs. frequency curves to determine the capacitor's behavior in specific applications. Additionally, the capacitor's self-resonant frequency should be considered to avoid unwanted resonances.
• What is the derating curve for EEUFS1J561 at high temperatures?
  Panasonic provides a derating curve for the EEUFS1J561, which shows the reduction in capacitance and increase in ESR as temperature increases. The derating curve can be found in the Panasonic application notes or by contacting their technical support.
• Can the EEUFS1J561 be used in high-vibration environments?
  Yes, the EEUFS1J561 is designed to withstand high-vibration environments. Panasonic recommends following their guidelines for vibration testing and ensuring that the capacitor is properly mounted and secured to the PCB to prevent mechanical stress.
• What is the recommended soldering profile for EEUFS1J561?
  Panasonic recommends a soldering profile with a peak temperature of 260°C and a dwell time of 10-30 seconds. The soldering profile should be optimized to prevent thermal shock and ensure reliable solder joints.