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.
The EEUFC1C681 is designed to operate at high frequencies, but its impedance increases with frequency. Panasonic provides a impedance vs frequency graph in the datasheet, which shows that the capacitor's impedance increases above 100 kHz. Engineers should consider this when designing high-frequency circuits.
Panasonic provides a derating curve in the datasheet, which shows that the capacitor's capacitance decreases with increasing temperature. Engineers should derate the capacitor's capacitance by 10% for every 10°C above 85°C to ensure reliable operation.
Yes, the EEUFC1C681 is designed to withstand high vibrations. Panasonic specifies a vibration endurance of 10-2000 Hz, 1.5 mm amplitude, and 3 hours per axis. However, engineers should ensure that the PCB is properly secured and the capacitor is properly soldered to prevent mechanical stress.
Panasonic recommends a soldering profile with a peak temperature of 260°C, a dwell time of 10-30 seconds, and a cooling rate of 2-4°C/second. Engineers should ensure that the soldering process does not exceed these parameters to prevent damage to the capacitor.
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