Snap-in Type Aluminum Electrolytic Capacitors KHU/LHU Series - 60% higher capacitance compared to existing products of same size
Oct. 18, 2022
Press Release
Nippon Chemi-Con Corporation
October 7, 2022
October 7, 2022
Nippon Chemi-Con has developed snap-in type capacitors KHU Series which guarantees 3,000 hours at 105°C, and LHU Series which guarantees 5,000 hours at 105°C. These capacitors are for power supply input smoothing and contributes to downsizing and longer life of switching power supplies and general-purpose inverters.
Snap-in type aluminum electrolytic capacitors are mainly used in smoothing circuits of power supplies. However, demand has increased for server power supplies for U.S./Canada, and in recent years, power conditioners for solar power generation/electricity storage systems aimed towards the realization of carbon neutrality. Such applications require higher capacitance for 475V and 500V high-voltage resistance products. We have engaged in development of new products to meet requirements for these power supplies.
The newly developed KHU Series and LHU Series realize higher capacitance for 475V and 500V products of the existing KHS/LHS Series without reducing endurance. Capacitance per volume can be increased by a maximum of 60% compared to the existing Series.
Technical Features
By expanding the usage voltage range of new materials adopted in the existing KHS Series (475V) and last year’s KHE Series to 500V, we have realized longer life and higher capacitance.Product Specifications
| KHU Series | LHU Series | |
|---|---|---|
| Category temperature range | -40°C to +105°C | |
| Rated voltage range | 475V to 500V | |
| Case size | ⌀25.4mm×25mmL to ⌀35mm×60mmL | |
| Capacitance range | 120µF to 950µF | 120µF to 900µF |
| Endurance | 3,000 hours at 105°C | 5,000 hours at 105°C |
Samples and Mass Production
Samples and mass production of the KHU Series and LHU Series started in August 2022.Production Site
Chemi-Con East Japan Corp. Fukushima PlantKHU Series & LHU Series： Performance comparison with existing products
*Chart figures: Capacitance (µF,20°C,120Hz)/Rated ripple current (Arms,105°C,120Hz)| Rated voltage | Case size | 3,000 hours at 105°C | 5,000 hours at 105°C | ||
|---|---|---|---|---|---|
| KHS Series (existing) |
KHU Series | LHS Series (existing) |
LHU Series | ||
| 475V | ⌀25.4×60L | 440 / 1.98 | 490 / 2.19 | - | 460 / 2.12 |
| ⌀30×60L | 640 / 2.38 | 730 / 2.78 | 470 / 2.05 | 690 / 2.70 | |
| ⌀35×60L | 870 / 2.77 | 950 / 3.16 | 560 / 2.21 | 900 / 3.08 | |
| 500V | ⌀25.4×60L | 270 / 1.51 | 430 / 2.05 | - | 410 / 2.00 |
| ⌀30×60L | 390 / 1.87 | 640 / 2.60 | 390 / 1.87 | 610 / 2.54 | |
| ⌀35×60L | 560 / 2.22 | 860 / 3.01 | 560 / 2.21 | 830 / 2.95 | |
Product Appearance
From left, KHU Series, LHU Series
