DATASHEETCommon-mode ChokesRD series
Current-compensated Chokes
Rated currents from 6 to 64 AUp to 600 VAC or 850 VDCDC to 400 Hz frequenciesDual, triple and quad-choke configurationsTechnical specificationsMaximum continuous operating voltage600 VAC/850 VDC @ 40°COperating frequencyDC to 400 HzRated currents6 to 64 A @ 40°C max.High potential test voltagewinding-to-winding2500 V, 50 Hz, 2 sec, factory test2500 VAC, 60 sec, guaranteedwinding-to-housing4000 VAC, 60 sec, guaranteedSurge current @ 10 msec20 x IN@ 25 °CTemperature range (operation and storage)-25°C to +110°C (25/110/21)Flammability corresponding toUL 94 V-0 (insulation tubes UL 94 V-2)MTBF @ 40°C/230 V (Mil-HB-217F)>5,000,000 hoursApprovals
RD chokes are attenuating common-mode orasymmetric (P/N –> E) interference signals, by beingconnected in series with the phase and neutral linesof an AC powerline input. Symmetrical componentsof the noise are also attenuated by the leakageinductance of the windings. These chokes aretypically used in conjunction with suppressioncapacitors.
Features and benefits
High saturation resistance and excellent thermalbehaviorThrough hole or wire connectionsDual, triple and quad-choke configurationUp to 64 A quad configurationMultiple housing optionsCustom-specific versions are available on request
Typical applications
Phase-angle control circuits in combination withsaturating chokesEMI input filtersFor suppressing equipment with no earthconnectionSuppressing high interference levels
Typical electrical schematic
2EMC/EMI ProductsSchaffner GroupDatasheets11 Oct 2018Choke selection table
ChokeNominal currentInductanceResistanceChokeInput/OutputPin footprintWeight@ 40°CLRconfigurationconnectionsconnections[A][mH/path][mΩ/path][Qty][mm][g]RD 5122-6-9m669.652.552-02Ø1160RD 5122-10-6m010624.252-02Ø1.3160RD 5122-16-2m01629.52-02Ø1.6160RD 5132-6-5m065383-02Ø1160RD 5132-10-3m010317.63-02Ø1.3160RD 5132-16-1m01616.93-02Ø1.6160RD 6127-6-15m061566.652-07Ø1235RD 6127-10-9m010925.92-07Ø1.5235RD 6127-16-3m016310.92-07Ø1.8235RD 6137-6-7m567.5493-07Ø1235RD 6137-10-4m5104.518.353-07Ø1.5235RD 6137-16-1m5161.58.33-07Ø1.8235RD 7127-6-25m062584.22-07Ø1320RD 7127-10-14m0101433.52-07Ø1.4350RD 7127-16-5m7165.714.12-07Ø1.8370RD 7127-25-2m8252.86.42-07Ø2.4400RD 7127-36-1m03613.32-07Ø2.7380RD 7137-6-12m061260.63-07Ø1340RD 7137-10-6m6106.621.93-07Ø1.5380RD 7137-16-2m8162.810.73-07Ø1.8380RD 7137-25-1m3251.34.453-07Ø2.5440RD 7137-36-0m5360.52.753-07Ø2.7400RD 7147-6-6m06645.14-07Ø1320RD 7147-10-3m5103.519.14-07Ø1.4370RD 7147-16-1m5161.58.54-07Ø1.8390RD 7147-25-0m7250.73.654-07Ø2.4430RD 7147-36-0m2360.22.34-07Ø2.5400RD 8127-16-12m0161220.052-07Ø2590RD 8127-25-5m02558.452-07Ø2.4630RD 8127-36-3m03634.552-071.5 x 4.5690RD 8127-50-1m05012.52-071.7 x 5640RD 8127-64-0m8640.81.62-072.5 x 5710RD 8137-16-5m016511.63-07Ø2630RD 8137-25-2m5252.56.43-07Ø2.4650RD 8137-36-1m5361.53.653-071.5 x 4.5720RD 8137-50-0m6500.62.153-071.7 x 5700RD 8137-64-0m5640.51.353-072.5 x 5780RD 8147-16-3m01639.254-07Ø2650RD 8147-25-1m3251.35.054-07Ø2.4650RD 8147-36-0m8360.834-071.5 x 4.5760RD 8147-50-0m3500.31.754-071.7 x 5740RD 8147-64-0m2640.21.14-072.5 x 5820Test conditions:Measuring frequency: 1 kHz; 500 μA >0.16 mH >1.6 mH; 50 μA >1.6 mH <160 mHInductance tolerance: +50%, -30%Resistance tolerance: ±15% @ 25 °CElectrical characteristics @ 25°C: ±2°C
3EMC/EMI ProductsSchaffner GroupDatasheets11 Oct 2018Typical choke attenuation/resonance frequency characteristics
Per CISPR 17; 50 Ω/50 Ω asym
RD 51x2
RD 61x7
RD 7127
RD 7137
RD 7147
RD 8127
RD 8137
RD 8147
Typical saturation characteristics
Inductance (typical value in %) vs. nominal current (A DC)
RD 51x2
RD 61x7
RD 71x7
RD 81x7
4EMC/EMI ProductsSchaffner GroupDatasheets11 Oct 2018Mechanical dataRD 5122RD 5132RD 6127, RD 7127, RD 8127RD 6137, RD 7137, RD 8137RD 7147, RD 8147Dimensions
RD 5122RD 5132RD 6127RD 6137RD 7127RD 7137RD 7147RD 8127RD 8137RD 8147TolerancesA50506060707070808080±0.5C35353535404040505050±0.5D5 ±0.55 ±0.5150150150150150200200200+5/-0Esee choke selection tableF1010101010202020±1G1520±0.3H2040 ±0.4±0.3I4.1 +3/-04.1 +3/-04.1 +3/-04.1 +3/-06.16.16.16.16.16.1+6/-0J120°K5All dimensions in mm; 1 inch = 25.4 mmTolerances according: ISO 2768-m/EN 22768-mPlease visit www.schaffner.com to find more details on filter connectors.
5EMC/EMI ProductsSchaffner GroupDatasheets11 Oct 2018
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