Power Ring /
DC Link Capacitors
Integration of Power Rings with optimized bus structures, minimizes inductance, enabling efficient, fast switching for wide bandgap semiconductors like SiC.
Power Ring /
High Performance DC Link Capacitors
available from stock
The Advanced Conversion annular form factor winding enables an optimal aspect ratio where the diameter is greater than the height. The resulting large end connection area makes heat removal very efficient, and the much shorter height dramatically lowers ESR. 100 micro-Ohm or lower ESR is available on these industry-leading components, which offers the highest possible Amp per μF rating.
We offer a complete portfolio of DC Link parts with 500V to 1800V continuous voltages including capacitance values from 120μF – 1500μF with current ratings in the 100’s of Amps continuous rating.
Many of these standard parts are available with inward facing feet to minimize the footprint impact.
Sometimes there is a question on how to mount the Power Ring DC Link Capacitors on a bus bar. Please read our Mounting Instructions for Standard Power Rings for guidance.
Examples of standard DC Link products are listed here. Most are available in stock either direct from Advanced Conversion or through one of our distributors.
You may also be interested in a pre-designed Universal bus for ease in testing and validation of these parts. Please see our Universal Bus Product page for options.
Do you want to see how your needs can be addressed?
Once you are ready to advance your system ideas and needs to the next generation contact our technical team
or to ask for a quote at [email protected]
Also find below a list of frequently asked questions and answers.
Datasheets
| DC Volt (Vdc) | CAP. (μF) | Standard Part # | Nominal Case Outside Diameter | Nominal Overall Height | RMS Current at 85°C |
|---|---|---|---|---|---|
| 450 | 500 | 700D529 (pdf) | 4.57″ (116.1 mm) | 2.04″ (51.8 mm) | 115 |
| 450 | 800 | 700D600 (pdf) | 6.27″ (159.3 mm) | 2.16″ (54.9 mm) | 225 |
| 450 | 1,600 | 700D601 (pdf) | 8.47″ (215.2 mm) | 2.16″ (54.9 mm) | 400 |
| 600 | 500 | 700D652* (pdf) | 6.27″ (159.3 mm) | 2.05″ | 210 |
| 600 | 500 | 700D349 (pdf) | 6.27″ (159.3 mm) | 2.16″ (54.9mm) | 210 |
| 600 | 1,000 | 8.47″ (215.2 mm) | 2.16″ (54.9mm) | 400 | |
| 600 | 1,500 | 700D523 (pdf) | 10.52″ (267.2 mm) | 2.16″ (54.9 mm) | 460 |
| 700 | 500 | 700D717* (pdf) | 6.27″ (159.3 mm) | 2.05″ (52.1 mm) | 175 |
| 700 | 500 | 700D599 (pdf) | 6.27″ (159.3 mm) | 2.16″ (54.9mm) | 175 |
| 700 | 1,000 | 700D547 (pdf) | 8.47″ (215.2 mm) | 2.16″ (54.9mm) | 300 |
| 900 | 215 | 700D651* (pdf) | 6.27″ (159.3 mm) | 2.05″ (52.1 mm) | 175 |
| 900 | 215 | 700D406 (pdf) | 6.27″ (159.3 mm) | 2.16″ (54.9 mm) | 175 |
| 900 | 425 | 700D407 (pdf) | 8.47″ (215.2 mm) | 2.16″ (54.9 mm) | 285 |
| 900 | 1,000 | 700D525 (pdf) | 10.0″ (254 mm) | 2.72″ (69.1 mm) | 300 |
| 900 | 1,500 | 700D509 (pdf) | 12.33″ (313.2 mm) | 2.82″ (71.7 mm) | 380 |
| 1,100 | 1,000 | 700D628 (pdf) | 10.0″ (254 mm) | 2.72″ (69.1 mm) | 235 |
| 1,100 | 1,500 | 700D590 (pdf) | 12.33″ (313.2 mm) | 2.82″ (71.7 mm) | 300 |
| 1,200 | 115 | 700D718* (pdf) | 6.27″ (159.3 mm) | 2.05″ (52.1 mm) | 155 |
| 1,200 | 115 | 700D408 (pdf) | 6.27″ (159.3 mm) | 2.16″ (54.9 mm) | 155 |
| 1,200 | 225 | 700D409 (pdf) | 8.47″ (215.2 mm) | 2.16″ (54.9 mm) | 265 |
| 1300 | 1,000 | 700D643 (pdf) | 12.33″ (313.2 mm) | 2.82″ (71.7 mm) | 300 |
| 1,500 | 75 | 700D719* (pdf) | 6.27″ (159.3 mm) | 2.05″ (52.1 mm) | 140 |
| 1,500 | 75 | 700D410 (pdf) | 6.27″ (159.3 mm) | 2.16″ (54.9 mm) | 140 |
| 1,500 | 140 | 700D411 (pdf) | 8.47″ (215.2 mm) | 2.16″ (54.9 mm) | 250 |
*This part has terminal feet that face inward.
FAQs
What is the highest voltage rating for these capacitors?
1,500 V continuous DC Link voltage often used with a 1.8 kV or 2.2 kV switch module.
What is the highest current of these capacitors?
Up to 400 Arms continuous with 10,000 hours of drive cycle life.
Can I combine these capacitors?
Yes, parallel connections for increased current and more flexible packaging sizes.
What is the largest capacitance of these capacitors?
Up to 1,600 μF is available. However this varies depending on voltage rating.
How do I install these capacitors?
They are designed to be fastened to a low inductance bus bar with a matching footprint. We have some standard examples in stock.
What is the typical lifetime of these capacitors?
In maximum drive cycle applications the life is typically 10-20,000 hours. In de-rated steady current applications such as grid-tied, over 100,000 hours is possible with good temperature control.