DC Link Capacitor
Low Equivalent Inductance (ESL)
Utilizing an optimized internal structure and multi-parallel design,This effectively suppresses high-frequency switching noise and voltage spikes, improving system stability.
Low Equivalent Internal Resistance (ESR)
Metalized film technology and advanced electrode design result in an ESR that is only 1/5 to 1/10 of that of aluminum electrolytic capacitors, significantly reducing power loss (and heat generation) and improving system efficiency. This makes it particularly suitable for high-frequency, high-current applications.
Temperature Stability and Long Life
Using polypropylene (PP) film dielectric achieving a capacitance change rate of less than 5% within the -40°C to +105°C temperature range, and achieve a lifespan exceeding 100,000 hours, far exceeding the typical 5,000-10,000 hours of aluminum electrolytic capacitors.
High Voltage Withstand and High Reliability
With a wide operating voltage range (DC 500V~2000V) and self-healing properties (automatically repairing after partial breakdown), making it suitable for industrial applications requiring high reliability (such as new energy and rail transit).
High-Frequency Characteristics
Thin-film dielectrics offer low high-frequency losses (tanδ <0.001), making them suitable for modern power electronics devices with high-frequency switching (>20kHz), such as inverters and frequency converters. Aluminum electrolytic capacitors experience significant performance degradation at high frequencies.
Non-Polarity and High Shock Resistance
It eliminates the need for polarity considerations during installation and can withstand high ripple currents and transient overvoltage surges, making it suitable for applications with frequent charging and discharging (such as electric vehicles and photovoltaic inverters).
| Main Application | Model | KV | UF |
| AC locomotive/metro/VFD/inverter | DGMJ2-4300H | 2 | 4300 |
| DGMJ2-4300H | 2 | 4300 | |
| DGMJ4.2-1000 | 4.2 | 1000 | |
| DGMJ2-4300-2 | 2 | 4300 | |
| DGMJ2-4300H | 2 | 4300 | |
| DZMJ1.8-2250P4 | 1.8 | 2250 | |
| DZMJ1.8-2250P6 | 1.8 | 2250 | |
| electric bus | DKMJ0.8-1000 | 0.8 | 1000 |
| DKMJ0.8-3000C | 0.8 | 3000 | |
| DKMJ0.8-600 | 0.8 | 600 | |
| DKMJ0.8-6000 | 0.8 | 6000 | |
| DKMJ0.8-450 | 0.8 | 450 | |
| DKMJ0.8-800 | 0.8 | 800 | |
| DKMJ0.8-1500 | 0.8 | 1500 |