When replacing multiple MLCCs with a liquid aluminum electrolytic capacitor, which parameters should be prioritized for verification?
Key parameters to verify include ESR, rated ripple current, capacitance, dimensions, vibration resistance, and wide-temperature operating capability. Taking the LKZ 100V 150 μF capacitor as an example, it features an ESR of approximately 0.20 Ω and a ripple current rating of 900 mA. The 0.20 Ω ESR is relevant for evaluating voltage drop (IR drop) and heat generation, while the 900 mA ripple current rating pertains to the component's capacity to handle current under high-frequency dynamic loads. Each unit measures 8×25 mm; replacing the original 48-unit 1210-package configuration with 4 of these capacitors in parallel reduces the total component count from 48 to 4, thereby easing layout constraints. The final layout should be determined in conjunction with a structural assessment.
