Inverter DC-link film capacitors in power conversion
DKMJ-S Series
The DKMJ-S series are designed with a metal shell, particularly used for high voltage and large capacitance. There are several single-core units in series or in parallel connection. Targets power electronics devices for rail traction, mining power converter, renewable energy systems, battery charging systems, motor drives and power supplies. This type can replace electrolytic capacitors, better performance and longer life.
The self-healing, dry-type, capacitor elements are produced using specially profiled, wave-cut metalized PP film which ensures low self-inductance, high rupture resistance and high reliability. Over-pressure disconnection is not considered necessary. The capacitor top is sealed with self-extinguishing eco-friendly epoxy. The special design ensures very low self-inductance.
Application
DC-Link capacitors form an essential stage in power conversion for many applications
1. Three-phase Pulse Width Modulation (PWM) inverters;
2. photovoltaic and wind power inverters;
3. Industrial motor drives;
4. Automotive onboard chargers and inverters;
5. Medical equipment power supplies;
6. Mining power inverter etc
Specification table
| Voltage | Un 800V.DC Us 1200V Ur 200V | ||||||||
| Cn (μF) | W (mm) | T (mm) | H (mm) | dv/dt (V/μS) | Ip (KA) | Irms(A)50℃@10KHz | ESR (mΩ) @1KHz | Rth (K/W) | Weight （Kg） |
| 4000 | 340 | 125 | 190 | 5 | 20.0 | 120 | 1.1 | 0.9 | 17.6 |
| 8000 | 340 | 125 | 350 | 4 | 32.0 | 180 | 0.72 | 0.6 | 31.2 |
| 6000 | 420 | 125 | 245 | 5 | 30.0 | 150 | 0.95 | 0.7 | 26.4 |
| 10000 | 420 | 125 | 360 | 4 | 40.0 | 200 | 0.72 | 0.5 | 39.2 |
| 12000 | 420 | 235 | 245 | 4 | 48.0 | 250 | 0.9 | 0.3 | 49.6 |
| 20000 | 420 | 235 | 360 | 3 | 60.0 | 300 | 0.6 | 0.3 | 73.6 |
| Voltage | Un 1200V.DC Us 1800V Ur 300V | ||||||||
| Cn (μF) | W (mm) | T (mm) | H (mm) | dv/dt (V/μS) | Ip (KA) | Irms(A)50℃@10KHz | ESR (mΩ) @1KHz | Rth (K/W) | Weight （Kg） |
| 2500 | 340 | 125 | 190 | 8 | 20.0 | 120 | 1.1 | 0.9 | 17.6 |
| 3300 | 340 | 125 | 245 | 8 | 26.4 | 150 | 0.95 | 0.7 | 22.4 |
| 5000 | 420 | 125 | 300 | 7 | 35.0 | 180 | 0.8 | 0.6 | 32.8 |
| 7500 | 420 | 125 | 430 | 5.5 | 41.3 | 200 | 0.66 | 0.6 | 44.8 |
| 5000 | 340 | 235 | 190 | 8 | 40.0 | 200 | 1.1 | 0.3 | 32.8 |
| 10000 | 340 | 235 | 350 | 6 | 60.0 | 250 | 0.8 | 0.3 | 58.4 |
| 5000 | 420 | 235 | 175 | 8 | 40.0 | 200 | 1 | 0.4 | 36 |
| 7500 | 420 | 235 | 245 | 7 | 52.5 | 250 | 0.9 | 0.3 | 49.6 |
| 10000 | 420 | 235 | 300 | 7 | 70.0 | 250 | 0.8 | 0.3 | 61.6 |
| 15000 | 420 | 235 | 430 | 5 | 75.0 | 300 | 0.6 | 0.3 | 84 |
| Voltage | Un 1500V.DC Us 2250V Ur 450V | ||||||||
| Cn (μF) | W (mm) | T (mm) | H (mm) | dv/dt (V/μS) | Ip (KA) | Irms(A)50℃@10KHz | ESR (mΩ) @1KHz | Rth (K/W) | Weight （Kg） |
| 1200 | 340 | 125 | 190 | 10 | 12.0 | 120 | 1.1 | 0.9 | 17.6 |
| 3000 | 340 | 125 | 420 | 8 | 24.0 | 180 | 0.66 | 0.7 | 37.6 |
| 2000 | 420 | 125 | 245 | 10 | 20.0 | 150 | 0.95 | 0.7 | 26.4 |
| 4000 | 420 | 125 | 430 | 8 | 32.0 | 200 | 0.66 | 0.6 | 44.8 |
| 5000 | 340 | 235 | 350 | 8 | 40.0 | 250 | 0.8 | 0.3 | 58.4 |
| 4000 | 420 | 235 | 245 | 10 | 40.0 | 250 | 0.9 | 0.3 | 49.6 |
| 8000 | 420 | 235 | 430 | 8 | 64.0 | 300 | 0.6 | 0.3 | 84 |
| Voltage | Un 2000V.DC Us 3000V Ur 600V | ||||||||
| Cn (μF) | W (mm) | T (mm) | H (mm) | dv/dt (V/μS) | Ip (KA) | Irms(A)50℃@10KHz | ESR (mΩ) @1KHz | Rth (K/W) | Weight （Kg） |
| 1000 | 340 | 125 | 245 | 12 | 12.0 | 150 | 0.95 | 0.7 | 22.4 |
| 1500 | 340 | 125 | 350 | 10 | 15.0 | 180 | 0.72 | 0.6 | 31.2 |
| 2000 | 420 | 125 | 360 | 10 | 20.0 | 200 | 0.72 | 0.5 | 39.2 |
| 2400 | 420 | 125 | 430 | 9 | 21.6 | 200 | 0.66 | 0.6 | 44.8 |
| 3200 | 340 | 235 | 350 | 10 | 32.0 | 250 | 0.8 | 0.3 | 46.4 |
| 4000 | 420 | 235 | 360 | 10 | 40.0 | 280 | 0.7 | 0.3 | 58.4 |
| 4800 | 420 | 235 | 430 | 9 | 43.2 | 300 | 0.6 | 0.3 | 67.2 |
| Voltage | Un 2200V.DC Us 3300V Ur 600V | ||||||||
| Cn (μF) | W (mm) | T (mm) | H (mm) | dv/dt (V/μS) | Ip (KA) | Irms (A)max | ESR (mΩ) | Rth (K/W) | Weight （Kg） |
| 2000 | 420 | 235 | 245 | 12 | 24 | 150 | 0.9 | 0.740740741 | 40 |
| 2750 | 420 | 235 | 300 | 10 | 27.5 | 200 | 0.8 | 0.46875 | 49.6 |
| 3500 | 420 | 235 | 360 | 10 | 35 | 200 | 0.7 | 0.535714286 | 58.4 |
| Voltage | Un 3000V.DC Us 4500V Ur 800V | ||||||||
| Cn (μF) | W (mm) | T (mm) | H (mm) | dv/dt (V/μS) | Ip (KA) | Irms (A)max | ESR (mΩ) | Rth (K/W) | Weight （Kg） |
| 1050 | 420 | 235 | 245 | 20 | 21 | 150 | 0.9 | 0.740740741 | 40 |
| 1400 | 420 | 235 | 300 | 15 | 21 | 200 | 0.8 | 0.46875 | 49.6 |
| 1800 | 420 | 235 | 360 | 15 | 27 | 200 | 0.7 | 0.535714286 | 58.4 |
| Voltage | Un 4000V.DC Us 6000V Ur 1000V | ||||||||
| Cn (μF) | W (mm) | T (mm) | H (mm) | dv/dt (V/μS) | Ip (KA) | Irms (A)max | ESR (mΩ) | Rth (K/W) | Weight （Kg） |
| 600 | 420 | 235 | 245 | 20 | 12 | 150 | 0.9 | 0.740740741 | 40 |
| 800 | 420 | 235 | 300 | 20 | 16 | 200 | 0.8 | 0.46875 | 49.6 |
| 1000 | 420 | 235 | 360 | 20 | 20 | 200 | 0.7 | 0.535714286 | 58.4 |
| Voltage | Un 2800V.DC Us 4200V Ur 800V | ||||||||
| Cn (μF) | W (mm) | T (mm) | H (mm) | dv/dt (V/μS) | Ip (KA) | Irms(A)50℃@10KHz | ESR (mΩ) @1KHz | Rth (K/W) | Weight （Kg） |
| 2×1000 | 560 | 190 | 310 | 20 | 2×20 | 2×350 | 1 | 0.2 | 60 |
| Voltage | Un 3200V.DC Us 4800V Ur 900V | ||||||||
| Cn (μF) | W (mm) | T (mm) | H (mm) | dv/dt (V/μS) | Ip (KA) | Irms(A)50℃@10KHz | ESR (mΩ) @1KHz | Rth (K/W) | Weight （Kg） |
| 2×1200 | 340 | 175 | 950 | 15 | 2×18 | 2×200 | 1.0 | 0.5 | 95 |
