Power Ring capacitors offer RMS current ratings that are an order of magnitude higher than traditional DC link caps. This allows the farad rating to be reduced to allow designers to push higher power density in their designs.
Power Ring capacitors can be directly bonded to the busbar to allow tight integration between components. Loop inductance from the module terminal to the capacitor can be as low as 5nH resulting in high resonant frequencies and the potential for a snubber free design.
Power Ring Capacitors are available with outward or inward-facing terminal feet, with the latter providing space saving capabilities.
Learn more about the technology
Capacitors can be customised to meet specific customer requirements. Click here for more information, or call us on +44 (0)1793 784389 and talk to a member of our technical sales team.
Standard PowerRing Capacitors
| Part Number | Capacitance (uF) | Max. Operating Voltage (V) | Cap. Tolerance (+/- %) | RMS Current (A) | ESL (nH) | Datasheet* |
|---|---|---|---|---|---|---|
| 700D410 | 75uF | 1500V | 10% | 140A | < 5nH | 700D410 |
| 700D719 * | 75uF | 1500V | 10% | 140A | < 5nH | 700D719 |
| 700D408 | 115uF | 1200V | 10% | 155A | < 5nH | 700D408 |
| 700D718 * | 115uF | 1200V | 10% | 155A | < 5nH | 700D718 |
| 700D411 | 140uF | 1500V | 10% | 250A | < 5nH | 700D411 |
| 700D406 | 215uF | 900V | 10% | 175A | < 5nH | 700D406 |
| 700D651 * | 215uF | 900V | 10% | 175A | < 5nH | 700D651 |
| 700D409 | 225uF | 1200V | 10% | 265A | < 5nH | 700D409 |
| 700D407 | 425uF | 900V | 10% | 285A | < 5nH | 700D407 |
| 700D529 | 500uF | 450V | 10% | 115A | < 5nH | 700D529 |
| 700D349 | 500uF | 600V | 10% | 210A | < 5nH | 700D349 |
| 700D652 * | 500uF | 600V | 10% | 210A | < 5nH | 700D652 |
| 700D599 | 500uF | 700V | 10% | 175A | < 5nH | 700D599 |
| 700D717 * | 500uF | 700V | 10% | 175A | < 5nH | 700D717 |
| 700D600 | 800uF | 450V | 10% | 225A | < 5nH | 700D600 |
| 700D348 | 1000uF | 600V | 10% | 400A | < 5nH | 700D348 |
| 700D547 | 1000uF | 700V | 10% | 300A | < 5nH | 700D547 |
| 700D525 | 1000uF | 900V | 10% | 300A | < 15nH | 700D525 |
| 700D628 | 1000uF | 1100V | 10% | 235A | < 15nH | 700D628 |
| 700D643 | 1000uF | 1300V | 10% | 300A | < 5nH | 700D643 |
| 700D523 | 1500uF | 600V | 10% | 460A | < 12nH | 700D523 |
| 700D509 | 1500uF | 900V | 10% | 380A | < 15nH | 700D509 |
| 700D590 | 1500uF | 1100V | 10% | 300A | < 15nH | 700D590 |
| 700D601 | 1600uF | 450V | 10% | 400A | < 5nH | 700D601 |
* Version with inward-facing terminal feet to reduce footprint.
Universal busbars are available for standard modules to allow for a quick integrated solution.
Universal BusBars
| Part Number | Compatible Discreet Power Rings | Compatible Switching Devices |
|---|---|---|
| Bus-1195 | 700D601 700D348 700D547 700D407 700D411 | Microsemi MSCMC170AM08CT6LIAG |
| Bus-1196 | 700D601 700D348 700D547 700D407 700D411 | Infineon FF2MR12KM1 FUJI 2MSI300VAH-120C-53 Wolfspeed WAB300M12MB3 ABB 5SNG 0300Q170300 Microsemi APTGT200A120G |
| Bus-1197 | 700D600 700D349 700D599 700D406 700D408 700D409 700D410 | Infineon FF2MR12KM1 FUJI 2MSI300VAH-120C-53 Wolfspeed WAB300M12MB3 ABB 5SNG 0300Q170300 Microsemi APTGT200A120G |
Technical Papers
| Description | PDF* |
|---|---|
| Technology Overview | Download |
| DC Link Capacitor/Bus Solutions Enabling the Highest Possible Inverter Performance | |
| Optimal DC Link Topologies for Best Utilisation of Switch Modules | Download |
| Evaluation of Infineon HybridPACK™ Drive with Optimised Integrated Capacitor/Bus DC Link for High-Performance Inverter Applications | Download |
| High-Performance DC Link Capacitor/Bus Sourcing Dual Infineon HybridPACK™ Drive Inverters for EV Applications | Download |
| Optimised DC Link for Next Generation Power Modules | Download |
| Are Snubbers the Right Choice for High Performance Inverters? | Download |
| Integrated DC Link Capacitor/Bus enables a 20% Increase in Inverter Efficiency | Download |
| Integrated DC Link Capacitor/Bus Structures to Minimise External ESL Contribution to Voltage Overshoot | Download |
| Characterisation of Equivalent Series Inductance for DC Link Capacitors and Bus Structures | Download |
| Electric Drive Cost Reduction by Design Simplification | Download |
| Low Inductance – Low Temp Rise DC Bus Capacitor Properties Enabling the Optimisation of High Power Inverters | Download |
| Resonant Circuit Applications | |
| System Level Considerations for Integration of Resonant Capacitors in High Power Wireless Charging | Download |
| Improving Capacitor Banks for Alternative Energy and UPS Systems | |
| Next Generation Dry Film AC Filter Capacitor Eliminates Catastrophic Failures | Download |
| Increasing the Life of Electrolytic Capacitor Banks Using Integrated High-Performance Film Capacitors | Download |
*Advanced Conversion has acquired all of the technology and technical data of SBE Inc. References to SBE in documentation are now Advanced Conversion.
