Product Brief 2011 Power Capacitors MKK-DC / MKK-DCI (-H) / MKK-DC-R Characteristics and properties High performance gas-impregnated capacitors offered for applications with medium voltage from 1500 to 3000 V DC and medium currents, with clear advantages in terms of lightness and reduced cost. Oil-impregnated capacitors are alternatives when applications demand high operating temperature and currents, resulting in critical heating that is more effectively evacuated by oil. This technology in oil is also more suitable for applications with high nominal voltages of >1800 V DC and/or high ripple voltages above 400 V RMS. Polyurethane resin-filled capacitors are offered in low voltage www.epcos.com applications with high currents due to their more simple construction with less components. The resin acts as insulator and heat conductor. In those cases where due to constraints in the application, the design of choice as explained above is not advisable or appropriate, a special custom-made design with another technology is possible. Applications • DC-voltage applications for DC link • Resonant filtering • Frequency converters Housing • Rectangular non-magnetic stainless steel case • Ferric steel, aluminum Power Capacitors Overview MKK-DC B25650 MKK-DCI / MKK-DCI-H B25750 MKK-DC-R B25640 • Dry (gas) • Oil • Dry • SF6, N2 • Rapeseed oil • Polyurethane resin • Flat winding • Flat winding • Flat winding • < 3000 V DC • 1800 … 6500 V DC • 800 … 1500 V DC • No AC ripple • With AC ripple • No AC ripple • Low temperature • Better thermal stability • Low temperature • DC link traction • Filter circuit • DC link industrial Applications • State-of-the-art • Best cost Specification and electrical characteristics Capacitance 100 … 20 000 μF Tolerance ± 10% Rated voltage 800 … 6500 V DC Operating hot-spot temperature –55 … +85 °C Lifetime at VR and +70 °C hot-spot temperature Up to 350 000 h Stray inductance Minimum values of down to 30 nH Impregnation Resin, gas and oil available Test voltage between terminals 1.5 • VR during 10 s Test voltage between shorten-terminals and case (2 • VR + 1000) VRMS at 50 Hz during 60 s © EPCOS AG 2011 Power Capacitors MKK-DC/MKK-DCI/MKK-DCI-H: Mechanical considerations and construction General description The MKK-DC/MKK-DCI/MKK-DCI-H capacitors are designed in rectangular cases made of austenitic stainless steel. The cases are hermetically welded and the surface is not painted. Fixing brackets and bolts are mounted to fix the capacitor. Bolts are used also for the ground connection. Different types of terminals are available for the terminal connections. The capacitors should be exclusively handled by the fixing brackets. In no case the terminals should be used to lift the capacitor. Capacitors will usually be mounted upright (terminals on top), but can be mounted in any position keeping a distance of 25 mm minimum between large facets, to allow for thermal expansion and effective cooling. Dimensions The following table shows the available standard dimensions. Deviations from these dimensions are available upon request. Tolerances are indicated in the drawings as well as the maximum thermal expansions during normal operation conditions. The label is located centered to the length and 50 mm from the top of the case. Labeling: manufacturer (company logo), ordering code, connection diagram, version, rated capacitance, tolerance, weight, insulating voltage, IEC standard, country of origin, month/year of manufacturing. MKK-DC MKK-DCI MKK-DCI-H H1 mm 340 340 340 H2 mm 605 605 605 H3 mm 805 Standard design Terminals and connections Standard terminals are available as shown below. Brass bolts, tinned, with different metrics in male and possibility of female connection, are available upon request. Insulation material of the terminal is Epoxy according to CTI 600. The following table shows the maximum continuous currents acceptable (for a temperature increase in the terminals of +15 °C), the maximum torque and the contact surface of standard terminals. Other specific options are available upon request. Please contact our local sales office. Terminal M16 Max. current Max. torque Contact surface © EPCOS AG 2011 265 A 25 Nm 505 mm2 Power Capacitors Standard terminals Fixing brackets The standard fixing brackets of the cases are shown in the drawing below. For heights lower than 500 mm, the lower brackets are removed. Upon request it is possible to substitute the fixing brackets by bolts (only for heights lower than 500 mm). Other specific options are available upon request. Please contact our local sales office. © EPCOS AG 2011 Z connection can be offered. It is supplied unmounted. Power Capacitors MKK-DC-R: Mechanical considerations and construction General description The MKK-DC-R capacitors are designed in aluminum rectangular cases filled with resin. Fixing brackets are available as shown below. For any other options, please contact our local sales office. The standard connection terminals are shown in the drawing below. Otherwise brass bolts tinned with male and possibility of female connection are available upon request. The capacitors should be exclusively handled by fixing brackets. In no case, the terminals should be used to lift the capacitor. Capacitors will usually be mounted upright (terminals on top), but can be mounted in any position keeping a lateral space of 25 mm minimum. © EPCOS AG 2011 Dimensions The table below shows the L dimension options and their relation to maximum current and number of terminal recommendable for low inductance option (inductance < 50 nH). Other dimensions are available on request. Tolerances are indicated in the drawing. Position of terminals (dimensions A and B) are changeable according to custom needs. MKK-DC-R Inductance < 50 nH L1 L2 L3 L1 mm 340 L2 mm 510 Number of terminals 6 8 10 L3 mm 750 Ieff (max) A 210 270 350 Power Capacitors Technical data example: B25650D1528K004 Technical data Characteristics CR Tolerance VR Vi WN Ieff, max Ieff, permanent LR tanδο ESR Climatic category (DIN IEC 68 part 1 and 2) 5200 ±10 1800 1300 8420 300 216 49 2 0.5 μF % V DC V AC Ws A A nH 10-4 2200 V 2700 36 312 7 60 V kA kA mΩ Maximum ratings ^ V VR Î Îs dv/dtmax dv/dts Test data 2700 VTT DC 3600 VTT AC ≥ 2.78 Ris XC ≤ 17 tanδ (120 Hz) Climatic conditions Tmin Tamb,max THotspot,max Humidity (av. rel.) Failure rate Estimated lifetime Tstorage © EPCOS AG 2011 Technical data V/μs V/μs V@10 s V@ 50 Hz, 60 s h 10-4 –50 +60 +85 < 95 °C °C °C % 300 100 000 fit h –50 … +85 °C Vtest Rel. humidity ttest ΔC/C Δtanδ Ris XC Design data +40 93 56 ≤1 ≤1 10000 °C % days % 10-4 s Dimensions Lcase Bcase Hcase Aterminal Terminations Max. torque Weight (approx.) Case extension 1) Impregnation Fixing elements 340 162 605 80 M12 x 30 20 40 8 gas filled acc. spec. Remarks Project study Overpressure switch recommended 1) with normal conditions mm mm mm mm mm Nm kg mm Power Capacitors Ordering code system MKK-DC series, all types with 4 terminals CR VR Ieff Vs @100Hz μF V A V 8200 900 240 1350 6000 1100 230 1650 2600 1800 175 2700 900 3000 150 4500 630 3600 130 5400 510 4000 120 6000 195 6000 75 9000 dv/dt s ESR Zth Ls V/us 30 40 60 220 260 290 750 mW 0.5 0.6 0.8 0.9 1.1 1.3 2.4 °C/W 0.7 0.7 0.9 0.9 1.0 1.0 1.0 nH < 50 < 50 < 50 < 50 < 50 < 50 < 50 dv/dt s ESR Zth Ls V/us 30 40 60 220 260 290 750 mW °C/W 0.3 0.3 0.4 0.5 0.5 0.5 0.7 nH < 80 < 80 < 80 < 80 < 80 < 80 < 80 Ordering code B25650C9828K004 B25650D1608K024 B25650D1268K004 B25650D3907K004 B25650D3637K004 B25650D4517K004 B25650D6197K004 Dimensions L x W x H: 340 x 165 x 340 mm, weight 24 kg CR μF 16400 12000 5200 1800 1250 1000 390 VR V 900 1100 1800 3000 3600 4000 6000 Ieff @100Hz A 370 360 300 275 240 220 145 Vs V 1350 1650 2700 4500 5400 6000 9000 Dimensions L x W x H: 340 x 165 x 605 mm, weight 40 kg *) see technical data on page 6 © EPCOS AG 2011 0.4 0.4 0.5 0.6 0.7 0.8 1.3 Ordering code B25650C9169K034 B25650D1129K004 B25650D1528K004* B25650D3188K024 B25650D3128K004 B25650D4108K004 B25650D6397K004 Power Capacitors CR VR μF 2500 1700 1400 V 3000 3600 4000 Ieff @100Hz A 340 300 290 dv/dt s ESR Zth Ls V/us 220 260 290 mW 0.5 0.6 0.7 °C/W 0.3 0.3 0.3 nH < 100 < 100 < 100 dv/dt s ESR Zth Ls V/us 90 100 104 mW 1.3 1.5 1.6 °C/W 0.4 0.4 0.4 dv/dt s ESR Zth V/us 90 100 104 mW 0.6 0.6 0.6 °C/W 0.3 0.3 0.3 dv/dt s ESR Zth V/us 50 60 65 80 230 280 340 mW 0.7 0.7 0.7 0.9 0.7 0.9 1.2 °C/W 0.4 0.4 0.4 0.4 0.4 0.4 0.4 dv/dt s ESR Zth V/us 55 60 65 80 mW °C/W 0.3 0.3 0.3 0.3 Vs V 4500 5400 6000 Ordering code B25650D3258K024 B25650D3178K004 B25650D4148K004 Dimensions L x W x H: 340 x 165 x 805 mm, weight 52 kg MKK-DCI series, all types with 4 terminals CR VR μF 760 610 565 V 3500 3900 4100 Ieff @100Hz A 170 160 160 Vs V 5250 5850 6150 nH < 50 < 50 < 50 Ordering code B25750D3767K004 B25750D3617K004 B25750D4567K004 Dimensions L x W x H: 340 x 165 x 340 mm, weight 26 kg CR VR μF 1500 1200 1100 V 3500 3900 4100 Ieff @100Hz A 300 290 290 Vs V 5250 5850 6150 Ls nH < 80 < 80 < 80 Ordering code B25750D3158K004 B25750D3128K004 B25750D4118K004 Dimensions L x W x H: 340 x 165 x 605 mm, weight 44 kg MKK-DCI-H series, all types with 4 terminals CR VR μF 3400 2700 2200 1500 800 500 350 V 1800 2000 2200 2700 3600 4400 5400 Ieff @100Hz A 230 220 210 190 220 180 160 Vs V 2700 3000 3300 4000 5400 6600 8000 Ls nH < 50 < 50 < 50 < 50 < 50 < 50 < 50 Ordering code B25750H1348K004 B25750H2278K004 B25750H2228K004 B25750H2158K004 B25750H3807K004 B25750H4507K004 B25750H5357K004 Dimensions L x W x H: 340 x 165 x 340 mm, weight 30 kg CR VR μF 6900 5400 4400 3000 V 1800 2000 2200 2700 Ieff @100Hz A 370 360 350 320 Vs V 2700 3000 3300 4000 Dimensions L x W x H: 340 x 165 x 605 mm, weight 50 kg © EPCOS AG 2011 0.5 0.5 0.5 0.6 Ls nH < 80 < 80 < 80 < 80 Ordering code B25750H1698K004 B25750H2548K004 B25750H2448K004 B25750H2308K004 Power Capacitors MKK-DC-R series (terminal construction see page 5) CR VR μF 5400 4300 3600 3100 2600 V 800 900 1000 1100 1200 Ieff @100Hz A 210 200 190 190 180 Vs V 1200 1350 1500 1650 1800 dv/dt s ESR Zth V/us 30 35 40 40 45 mW 0.7 0.8 0.8 0.8 0.9 °C/W 0.6 0.6 0.6 0.6 0.6 dv/dt s ESR Zth V/us 30 35 40 40 45 mW 0.5 0.6 0.6 0.6 0.6 °C/W 0.5 0.5 0.5 0.5 0.5 dv/dt s ESR Zth V/us 30 35 40 40 45 mW °C/W 0.4 0.4 0.4 0.4 0.4 Ls nH < 50 < 50 < 50 < 50 < 50 Ordering code B25640D8548K000 B25640D9438K000 B25640D1368K000 B25640D1318K000 B25640D1268K000 Dimensions L x W x H: 340 x 170 x 200 mm, weight 18 kg CR VR μF 8300 6700 5500 4800 4100 V 800 900 1000 1100 1200 Ieff @100Hz A 270 260 260 250 240 Vs V 1200 1350 1500 1650 1800 Ls nH < 50 < 50 < 50 < 50 < 50 Ordering code B25640D8838K000 B25640D9678K000 B25640D1558K000 B25640D1488K000 B25640D1418K000 Dimensions L x W x H: 510 x 170 x 200 mm, weight 26 kg CR μF 12500 10100 8300 7300 6200 VR V 800 900 1000 1100 1200 Ieff @100Hz A 350 350 340 340 330 Vs V 1200 1350 1500 1650 1800 0.5 0.5 0.5 0.5 0.5 Ls nH < 50 < 50 < 50 < 50 < 50 Ordering code B25640D8129K000 B25640D9109K000 B25640D1838K000 B25640D1738K000 B25640D1628K000 Dimensions L x W x H: 750 x 170 x 200 mm, weight 32 kg Lifetime The end of life criterion is a capacitance loss higher than 3% compared to initial value. Capacitor Lifetime Hotspot temperature MKK-DC 100 000 h +70 °C MKK-DC-R MKK-DCI 150 000 h +75 °C MKK-DCI-H Important information: Some parts of this publication contain statements about the suitability of our products for certain areas of application. These statements are based on our knowledge of typical requirements that are often placed on our products. We expressly point out that these statements cannot be regarded as binding statements about the suitability of our products for a particular customer application. It is incumbent on the customer to check and decide whether a product is suitable for use in a particular application. This publication is only a brief product survey which may be changed from time to time. Our products are described in detail in our data sheets. The Important notes (www.epcos.com/ImportantNotes) and the product-specific Cautions and warnings must be observed. All relevant information is available through our sales offices. © EPCOS AG • A Group Company of TDK-EPC Corporation Edition 2011