Conductive Polymer Hybrid Aluminum Electrolytic Capacitor ZU Series

ハイブリッドアルミ電解コンデンサZUシリーズ写真,铝电解电容器ZU系列Hybrid AluminumZUSeries picture

Progress in technologies for electric cars and autonomous cars has led to the development of in-vehicle ECUs with higher performance. As a result, circuits making up those high-performance ECUs have come to carry larger load currents as more and more ECUs have been incorporated in cars. This latest trend has created demand for smaller boards. Now, to secure enough space for packaging circuit elements on such a small board, capacitors must be compact, be capable of handling a large current, and have a large capacitance.
To provide a capacitor that meets those conditions, Panasonic has released the ZU Series Conductive Polymer Hybrid Aluminum Electrolytic Capacitors with features including the ability to handle large currents, a large capacitance, and stable behavior under high temperature.

Features of ZU series

  • Large current
  • Large capacitance
  • High temperature guarantee
  1. Large current：Handles a current 1.4 times larger than the current handled by the conventional ZS Series.

    Thanks to Panasonic's unique conductive polymer formation technology and a newly incorporated low-resistance material, the new product has achieved lower ESR and can handle a current 1.4 times larger than the current handled by the conventional ZS Series, thus solving the problem of increasing load current in circuits and saving space on circuit boards.

    Ripple current (compared with a ø10×16.5 mm capacitor)
    Rated voltage ZS series ZU series
    25V 4.0Ams 5.8Ams
    63V 3.5Ams 5.2Ams
  2. Large capacitance：Has a large capacitance equal to that of the conventional ZS series.

    As new materials and methods for manufacturing the new product have been introduced to give the product lower ESR and higher heat resistance, the large capacitance of the existing ZS series has been maintained.

  3. High temperature guarantee : The new product is guaranteed to operate normally at 135°C for 4000 hours, remaining stable under a high-temperature environment.

    Based on the heat-resistant function of the conventional ZS series that allows it to operate normally at 125°C for 4000 hours, the heat resistance reliability of the new product has been improved further to guarantee normal operation at 135°C for 4000 hours.

Specifications of ZU series

ZU series basic specifications
Item Specifications
Category temperature -55 to 125 °C
-55 to 135 °C
Rated voltage 25 V to 63 V
Capacitance 100 to 560 μF
Size (ø×L) ø10×12.5 to ø10×16.5 mm
Endurance 125 °C 4000 h
135 °C 4000 h
Moisture resistant 85 °C 85 % 2000 h
Capacitance/Ripple current (ZS vs ZU)
Rated voltage 25 V 35 V 50 V 63 V
Characteristic Cap.
(μF) 		Ripple current
(mA) 		Cap.
(μF) 		Ripple current
(mA) 		Cap.
(μF) 		Ripple current
(mA) 		Cap.
(μF) 		Ripple current
(mA)
Series name ZS
ZU 		ZS ZU ZS
ZU 		ZS ZU ZS
ZU 		ZS ZU ZS
ZU 		ZS ZU
Size ø10ｘ
12.5		 125 °C 470 3500 5000 330 3500 4800 150 3200 4600 100 3000 4600
135 °C - 3500 - 3300 - 3200 - 3200
ø10ｘ
16.5		 125 °C 560 4000 5800 470 4000 5500 220 3700 5200 150 3500 5200
135 °C - 4000 - 3800 - 3600 - 3600

Large current

(Existing) ZS series ZU series ( 125 °C )
4000mA　560μF/25V ⇒ 5800mA 560μF/25V ( ×1.4times )
3500mA　150μF/63V ⇒ 5200mA 150μF/63V ( ×1.5times )

ZU series proposal example

Mild hybrid car 48 V system IGS

48VsystemISG

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