NICHICON CORPORATION has expanded its range of compact sizes for the UHW series of long-life, compact, low-impedance lead-type aluminum electrolytic capacitors, and expanded the lifetime of products with the rated voltage 63V to 100V. This series of part is ideal for use in LED lighting and general power supplies. As a result, the Company has made it possible to make devices even more compact and extend their lifespan.
The product will be on display at CEATEC JAPAN 2017, taking place at Makuhari Messe from Tuesday to Friday, October 3 to 6.
Overview/Development Background
Aluminum electrolytic capacitors are more compact and offer higher capacitance than other capacitors. The demand in increasing for higher of capacitance, lower resistance and longer lifespans all in a smaller package size.
In response to these market demands, NICHICON has added φ5 x 11L to φ10 x 12.5L (mm) compact sizes to its UHW series of aluminum electrolytic capacitors and increased guaranteed life at 63V to 100V from 10,000 hours on current products to 11,000 hours for φ8 x 15, φ8 x 20L (mm) products. Expanding the lineup further, we have increased the guaranteed lifespan to 12,000 hours on products φ10 (mm) or larger.
Features
By optimizing the product design on the UHW series and using an electrolyte that contributes to low impedance and an extended lifespan, we have achieved the industry’s highest level of endurance for low-impedance products for power supplies, at up to 12,000 hours (105°C). Also achieving greater compactness compared to the current UHE series, for a φ10 x 16L (mm) product the UHW series features capacitance of 1,200μF, compared to 820μF, achieving around 1.5 times higher capacitance. The UHW series also achieves an approximate 50% reduction in impedance for a 100V, φ5 x 11L (mm) product. The UHW series is ideal for use in LED lighting and various types of power supplies that require a long lifespan, compactness and low impedance.
Figure. Comparison of Electrical Characteristics on Products of the Same Size
| Rated voltage (V) |
Case size ΦDxL（mm） |
Capacitance（μF） | ||
| UHE （current product） |
UHW （developed product） |
Increase | ||
| 6.3 | 5x11 | 15 | 220 | x1.5 |
| 10x12.5 | 820 | 1200 | x1.5 | |
| 100 | 5x11 | 6.8 | 8.2 | x1.2 |
| 10x12.5 | 47 | 56 | x1.2 | |
| Rated voltage (V) |
Case size ΦDxL（mm） |
Impedance（Ω） （at 20℃ 100kHz） |
||
| UHE （current product） |
UHW （developed product） |
Decrease | ||
| 6.3 | 5x11 | 0.58 | 0.47 | x0.8 |
| 10x12.5 | 0.08 | 0.048 | x0.6 | |
| 100 | 5x11 | 2.3 | 1.2 | x0.5 |
| 10x12.5 | 0.43 | 0.17 | x0.4 | |
Figure. Comparison of Life on Products of the Same Size
| Rated voltage (V) |
Case size ΦDxL（mm） |
Life (hours) （Hours of guaranteed life at 105°C） |
||
| UHE （current product） |
UHW （developed product） |
Increase | ||
| 6.3 | 5x11 | 4000 | 6000 | x1.5 |
| 10x12.5 | 6000 | 10000 | x1.7 | |
| 100 | 5x11 | 5000 | 8000 | x1.6 |
| 10x12.5 | 7000 | 12000 | x1.7 | |
Main Specifications
Note: Figures in parentheses indicate expanded ratings.
|
: 6.3 to 100V |
|---|---|
|
: 82 to 15,000μF (8.2 to 1,500μF) |
|
: -40 to +105°C |
|
: φ5 x 11L to φ18 x 40L(φ5 x 11L to φ10 x 12.5L) |
|
: Guaranteed 6,000 to 12,000 hours at 105°C |
|
: Lead type |
|
: From December 2017 |
|
: From March 2018 |
|
:NICHICON (OHNO) CORPORATION |
- Expansion in range of compact sizes and increase in life on UHW series of
lead-type aluminum electrolytic capacitors
