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Home » NEWEST Products » New by Manufacturer » Murata » Murata ECAS Polymer Capacitors
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Murata Polymer Aluminum Electrolytic Capacitors
ECAS Series

Murata offers the ECAS Series Polymer Aluminum Electrolytic Capacitors for low ESR , high capacitance areas. This ECAS series has a resin molded structure, utilizing multilayer aluminum foil for anode, and solid conductive polymer for cathode. The Murata line also features high capacitance (6.8µF to 470µF with rated voltages from 2VDC to 16VDC), low ESR (6 to 70 mohms), good temperature characteristics, no need for voltage derating, and resistance to short circuits. In addition, the Murata ECAS series Polymer Aluminum Electrolytic Capacitors are available in a case size of 7.3mm x 4.3mm with three different thickness options.


  • Resin molded case structure utilizes multilayer aluminum foil for anode and solid conductive polymer for cathode
  • High capacitance (6.8µF to 470µF) and Low ESR (6 to 70 mohms)
  • Operating temperature -40 to +105ºC
  • Rated voltage 2 to 16VDC
  • High frequency performance up to 500kHz with low impedance for excellent noise suppression
  • Stable capacitance with applied voltage, temperature, and at high operating frequencies
  • No voltage derating required
  • Polarity bar (positive) noted on product
  • Surface mount construction
  • RoHS compliant
  • Halogen-free epoxy
  • MSL3 packaging

Murata ECAS Polymer Capacitor

  • Computer
  • Digital audio/visual
  • Telecom
  • Overall power management

Murata Electronics ' new series of polymer aluminum electrolytic capacitors ( ECAS Series) exhibit strong equivalent series resistance ( ESR ) performance compared to traditional electrolytic capacitors and provide similar characteristics when compared to multi - layer ceramic capacitors ( MLCCs ). The ECAS series allows Murata to greatly expand its high capacitance offerings, giving customers a full range of capacitor solutions.

The Murata ECAS series has a resin molded case structure, which utilizes multilayer aluminum foil for anode and solid conductive polymer for negative cathode. This surface mount design can be soldered using traditional reflow methods. The offered capacitance range is 6.8uF to 470uF with rated voltages from 2VDC to 16VDC. It is available in a case size of 7.3mm x 4.3mm with three different thickness options. The high capacitance value and low ESR lead to low impedance at high frequency (up to 500kHz). This provides excellent noise suppression, ripple absorption and decoupling abilities on power lines. In addition, the ECAS series offers capacitance stability at high operating frequencies and temperatures. Unlike MLCC 's, these capacitors do not exhibit drop with applied DC voltage. The operating temperature range is -40 to +105ºC, and all are RoHS compliant.

External Dimensions
Murata ECAS Polymer Capacitor

Case Size
L W T W1 S
D4 7343 7.3 ± -0.3 4.3 ± -0.2
1.9 ± -0.1
2.4 ± -0.2
1.3 ± -0.2
D6 7343 7.3 ± -0.3 4.3 ± -0.2 2.8 ± -0.3
2.4 ± -0.2 1.3 ± -0.2
D9 7343 7.3 ± -0.3 4.3 ± -0.3 4.2 ± -0.3
2.4 ± -0.2 1.3 ± -0.2

Capacitor Map Murata ECAS Polymer Capacitor Map
Line-up (click on selection)
Murata ECAS Polymer Lineup
Murata ECAS Polymer Specifications

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  • Murata Electronics
  • Passive Components|Capacitors