October 24, 2023

NICHICON CORPORATION Launches the UCK Series ofChip-Type Aluminum Electrolytic Capacitors with Low Voltage andHigh Capacitance (Guaranteed for 5,000 Hours at 105°C)
NICHICON CORPORATION has launched the UCK series of chip-type aluminum electrolytic capacitors withlow voltage and high capacitance (guaranteed life of 5,000 hours at 105°C). These products are ideal for use inautomotive equipment and telecommunications equipment.

Overview and Development Background
The trend in many industries toward surface mounting of electronic components has generated demand forchip-type aluminum electrolytic capacitors with equivalent capacitance to replace radial lead-type aluminumelectrolytic capacitors. There is also a need for high-capacitance capacitors for power backup and otherapplications, and there is a constant demand for more compact and higher-capacitance aluminum electrolyticcapacitors. We have launched the UCK series of chip-type aluminum electrolytic capacitors to meet thesemarket needs.

Features
The UCK series is based on our accumulated technology. It realizes miniaturization and high capacitance byutilizing a high-capacitance electrode foil. As a result, the UCK series achieves a maximum 20.9% increase incapacitance compared to the UCM series, the current chip-type product rated to 105°C. The series contributes
to more compact device and terminal designs. Further, compared with the current UPW series of radial leaded
capacitors with the same capacitance, the UCK series is 30% smaller in terms of height, leading to reductions inlabor and a lower profile when surface mounting.
Capacitance Versus the Current UCM Series
Rated
Voltage(V)
2535Dimensions
φD×L(mm)

Capacitance (µF)

UCM Series

UCK Series

Volume(Current product)(Developed product)

Ratio

12.5×13.5

1,500

1,700+13.3％

16×16.52,700

2,900+ 7.4％

18×21.5

5,100

5,900+15.7％

12.5×13.5910

1,100+20.9％

16×

16.5

1,800

1,900+ 5.6％

18×

21.5

3,600

3,800+ 5.6％

*Capacitance: 120Hz at 20℃

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Height Versus the Current UPW Series
Capacitance / Dimensions

Rated
Voltage(V)
2535⌀D×L(mm)UPW Series(現行品)

UCK Series(Current product)(Developed product)

Height Ratio

1,500

12.5×25.5

1,700

12.5×13.5ｰ 47.0％

2,70016×25

2,90016×16.5

ｰ 34.0％4,70018×35.5

5,90018×21.5

ｰ 39.4％680

12.5×20

1,10012.5×13.5

ｰ 32.5％1,90016×25

1,90016×16.5

ｰ 34.0％3,30018×35.5

3,80018×21.5

ｰ 39.4％*Capacitance: 120Hz at 20℃

Main Specifications
・Rated voltage range：25 to 35V・Rated capacitance range：1,100 to 5,900μＦ

・Category temperature range：-55 to 105℃
・Product dimensions：φ12.5×13.5Ｌto φ18×21.5Ｌ(6 Sizes)

・Life： 5000 hours guaranteed at 105°C when rated voltage is applied

・Terminal shape：Chip type・Samples
・Mass production launch /Production capacity：From October 2023

・Production plant：From October 2023
[Planned production volume: one hundred thousand / month]：NICHICON (OHNO) CORPORATION
1-11-2 Shimoyoro, Ohno-shi, Fukui Pref., 912-0095 Japan(ISO 9001, IATF 16949, and ISO 14001 certified)2

Product Appearance

UCK Series of Chip-Type Aluminum Electrolytic Capacitors

Product Inquiries: Nobuyuki Nishida, Operating Officer, General Manager of Capacitor Business
Division

Phone : 81-75-231-8461

Media Inquiries : Public Relations & Investor Relations Office Phone:81-75-241-5338

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