Murata ECAS Series Polymer Aluminum Electrolytic Capacitors are ideal for low ESR and high capacitance applications in a variety of commercial and industrial markets. These capacitors provide a high level of performance, allowing circuit designers to achieve excellent noise suppression, ripple absorption, and output smoothing in power management applications.
Polymer capacitors exhibit strong Equivalent Series Resistance (ESR) performance compared to traditional electrolytic capacitors and provide similar characteristics when compared to multilayer ceramic capacitors (MLCCs). The ECAS series allows Murata to expand its high capacitance offerings, giving customers a full range of capacitor solutions. Markets for the ECAS series capacitor include computer, digital audiovisual, and telecom for overall power management.
The ECAS series has a resin-molded case structure, which utilizes multilayer aluminum foil for the anode, and solid conductive polymer for the negative cathode. This surface mount design can be soldered using traditional reflow methods. ECAS capacitors have a capacitance range from 6.8uF to 470uF, with a rated voltage range from 2Vdc to 25Vdc. The high capacitance value and low ESR lead to the low impedance at high frequencies (up to 500kHz). The capacitors offer capacitance stability at high operating frequencies and temperatures and do not exhibit drops with applied DC voltage. These capacitors operate over a temperature range from -40°C to +105°C, and all are RoHS compliant.