DC

Astrodyne TDI offers the solutions needed to combat issues concerning both EMI and RFI, safely and effectively. We offer an array of DC EMI/RFI/EMC Filters to meet the needs of various industries and applications. At Astrodyne TDI, we offer DC EMI Filters that can attenuate EMI with the highest performance possible. We offer models designed for both high performance and high current. High-performance filters are specifically designed to produce the best filter quality, while high-current models require more phases to reduce the effects of EMI successfully.

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  1. All EMI Filters 5217 items
  2. Single-Phase 1483 items
  3. IEC Inlet 598 items
  4. DC 678 items
  5. 3-Phase Delta 1159 items
  6. 3-Phase WYE 837 items
  7. Feed-Thru 42 items
  8. Tempest 22 items
  9. MIL-COTS 126 items
  10. Facility MRI/Shielded Rooms 79 items
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Items 1-10 of 678

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Part Number Description Part ID Current Rating Maximum Operating Voltage Input Terminals Output Terminals
EMI Filter, RP681-250-0-B, 1000VDC, 250ADC, Busbar 1214-001 EMI Filter, RP681-250-0-B, 1000VDC, 250ADC, Busbar 250.00 1000VDC 4x20 Bus Bars 4x20 Bus Bars
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EMI Filter, RP681-250-2000-B, 1000VDC, 250ADC, Busbar 1214-002 EMI Filter, RP681-250-2000-B, 1000VDC, 250ADC, Busbar 250.00 1000VDC 4x20 Bus Bars 4x20 Bus Bars
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EMI Filter, RP681-320-0-B, 1000VDC, 320ADC, Busbar 1214-003 EMI Filter, RP681-320-0-B, 1000VDC, 320ADC, Busbar 320.00 1000VDC 6x25 Bus Bars 6x25 Bus Bars
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EMI Filter, RP681-320-2000-B, 1000VDC, 320ADC, Busbar 1214-004 EMI Filter, RP681-320-2000-B, 1000VDC, 320ADC, Busbar 320.00 1000VDC 6x25 Bus Bars 6x25 Bus Bars
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EMI Filter, RP681-400-0-B, 1000VDC, 400ADC, Busbar 1214-005 EMI Filter, RP681-400-0-B, 1000VDC, 400ADC, Busbar 400.00 1000VDC 6x25 Bus Bars 6x25 Bus Bars
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EMI Filter, RP681-400-2000-B, 1000VDC, 400ADC, Busbar 1214-006 EMI Filter, RP681-400-2000-B, 1000VDC, 400ADC, Busbar 400.00 1000VDC 6x25 Bus Bars 6x25 Bus Bars
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EMI Filter, RP681-600-0-B, 1000VDC, 600ADC, Busbar 1214-007 EMI Filter, RP681-600-0-B, 1000VDC, 600ADC, Busbar 600.00 1000VDC 8x25 Bus Bars 8X25 Bus Bars
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EMI Filter, RP681-600-2000-B, 1000VDC, 600ADC, Busbar 1214-008 EMI Filter, RP681-600-2000-B, 1000VDC, 600ADC, Busbar 600.00 1000VDC 8x25 Bus Bars 8X25 Bus Bars
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EMI Filter, RP681-800-0-B, 1000VDC, 800ADC, Busbar 1214-009 EMI Filter, RP681-800-0-B, 1000VDC, 800ADC, Busbar 800.00 1000VDC 8x40 Bus Bars 8x40 Bus Bars
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EMI Filter, RP681-800-2000-B, 1000VDC, 800ADC, Busbar 1214-010 EMI Filter, RP681-800-2000-B, 1000VDC, 800ADC, Busbar 800.00 1000VDC 8x40 Bus Bars 8x40 Bus Bars
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Items 1-10 of 678

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CUSTOMIZED DC FILTERS FROM ASTRODYNE TDI

For more than 50 years, Astrodyne TDI has provided reliable solutions that meet the needs of various global corporations.

Along with our extensive inventory, we also offer custom EMI Filters at cost-effective prices and fast manufacturing times. Request your quote today, or contact us to learn more about how we can help you create the best solutions for your industry needs.

 

WHAT ARE DC EMI FILTERS?

Most types of electrical and electronic devices, including Power Supplies, emit electrical noise. When two devices are close to each other, the electrical noise of one can interfere with the operation of another — known as Electromagnetic Interference (EMI) or Radio Frequency Interference (RFI). An EMI filter is used to suppress the electrical noise that stems from electric currents in the device's wiring, reducing EMI for a clearer signal.

Due to the fact that most Power Supplies operate using DC voltages, DC EMI Filters allow DC and low-frequency currents to pass through while blocking harmful high-frequency currents. This arrangement allows for the full functionality of the device while diverting unnecessary noise.

DC EMI Line Filters help Power Supplies meet EMI regulations. EMI filters themselves must meet stringent safety standards to minimize the device's risk of electric shock and fire hazards. At Astrodyne TDI, our DC power line filters are tested in-house to conform to worldwide safety standards. Each filter carries U.S. (UL), European (IEC/VDE/Semko), and Canadian (cUL/CSA) agency approvals.

 

USES OF DC POWER LINE FILTERS

Although AC/DC Power Supplies feature their own internal EMI Filters, sometimes, the systems they power generate more electrical noise than the internal filter can handle on its own. Separate Power Filters are useful in these situations to bring the noise down to acceptable levels.

Use DC EMI power line filters to combat interference in applications such as:

  • Modems
  • Network Routing Equipment
  • Servers
  • Ethernet Hubs
  • Base Stations
  • Power Supplies