TDK Electronics · TDK Europe

Ferrites

  • Recommended materials for automotive applications:
    N49, N87, N92, N95, N97
  • CAN bus choke materials: K1, K10
  • Suitability of other materials depends on transformer design
  • Wide range of ferrite accessories

Ring cores

  • Ring cores are primarily used as EMC chokes for suppressing RF interference
Product search

Core shape Material (Core) AL value (nH) PDF
R 2.50 x 1.50 x 1.00 K10,  N30,  T38,  T65 70 - 1020
R 2.50 x 1.50 x 1.30 K10,  T38,  T65 93 - 1320
R 2.54 x 1.27 x 1.27 K10,  T38,  T65 120 - 1760
R 3.05 x 1.27 x 1.27 K10,  T38,  T65 160 - 2200
R 3.05 x 1.27 x 2.54 K10,  T38,  T65 330 - 4200
R 3.05 x 1.78 x 2.03 K10,  T38,  T65 160 - 2150
R 3.43 x 1.78 x 1.78 K10,  T38,  T65 160 - 2300
R 3.43 x 1.78 x 2.03 K10,  T38,  T65 190 - 2650
R 3.94 x 1.78 x 1.78 K10,  T38,  T65 200 - 2830
R 3.94 x 2.24 x 1.30 K10,  T38,  T65 100 - 1470
R 3.94 x 2.24 x 2.30 K10,  T38,  T65 180 - 2600
R 4.00 x 2.40 x 1.60 N30,  T38,  T65 700 - 1630
R 4.00 x 2.40 x 1.80 N30,  T38,  T65 790 - 1840
R 5.84 x 3.05 x 1.52 N30,  T38,  T65 850 - 1900
R 5.84 x 3.05 x 3.00 N30,  T38,  T65 1680 - 3900
R 6.30 x 3.80 x 2.50 K1,  N30,  N87,  T38,  T65 20 - 2530
R 8.00 x 4.00 x 4.00 N30,  N87,  T38,  T65 1200 - 5500
R 9.53 x 4.75 x 3.17 N30,  N87,  T35,  T38,  T65 970 - 4410
R 10.0 x 6.00 x 4.00 K1 - T65 33 - 4090
R 10.0 x 6.00 x 7.00 K10,  N30,  T38,  T65 450 - 7150
R 12.5 x 7.50 x 5.00 N30 - T65 1120 - 5110
R 12.7 x 7.90 x 6.35 N30 - T65 1330 - 6030
R 13.3 x 8.30 x 5.00 N30 - T65 1040 - 4700
R 14.0 x 9.00 x 5.00 N30 - T65 970 - 4420
R 15.0 x 10.4 x 5.30 N30 - T65 850 - 3880
R 15.8 x 8.90 x 4.70 N30 - T65 1190 - 5400
R 16.0 x 9.60 x 6.30 K1 - T65 52 - 6440
R 17.0 x 10.7 x 6.80 N30 - T65 1390 - 6280
R 18.4 x 5.90 x 5.90 N30 - T65 2950 - 13400
R 20.0 x 10.0 x 7.00 N30 - T65 2130 - 9740
R 20.0 x 10.0 x 10.00 N30 - T65 3000 - 12940
R 20.0 x 10.0 x 15.00 N30 - T65 4500 - 19880
R 22.1 x 13.7 x 6.35 N30 - T65 1340 - 6070
R 22.1 x 13.7 x 7.90 N30 - T65 1660 - 7570
R 22.1 x 13.7 x 12.5 N30 - T65 2630 - 12000
R 22.6 x 14.7 x 9.20 N30 - T65 1740 - 7900
R 25.3 x 14.8 x 10.0 N30 - T65 2360 - 10700
R 25.3 x 14.8 x 15.0 N30,  N87,  T37,  T38,  T65 3500 - 16100
R 25.3 x 14.8 x 20.0 N30 - T65 4680 - 21300
R 29.5 x 19.0 x 14.9 N30,  N87,  T37,  T38,  T65 2880 - 13100
R 30.5 x 20.0 x 12.5 N30,  N87,  T37,  T38,  T65 2320 - 10600
R 34.0 x 20.5 x 10.0 N30,  N87,  T37,  T38,  T65 2230 - 10100
R 34.0 x 20.5 x 12.5 K1 - T65 100 - 12700
R 36.0 x 23.0 x 15.0 N30,  N87,  T37,  T38,  T65 2940 - 13500
R 38.1 x 19.05 x 12.7 N30,  N87,  T37,  T38,  T65 3870 - 17600
R 40.0 x 24.0 x 16.0 N30 - T65 3590 - 16300
R 41.8 x 26.2 x 12.5 N30,  N87,  T37,  T38,  T65 2560 - 11600
R 50.0 x 30.0 x 20.0 K10 - T65 1400 - 17400
R 58.3 x 32.0 x 18.0 K10 - T65 1500 - 17200
R 58.3 x 40.8 x 17.6 K10,  N30,  N87,  T37,  T65 900 - 7160
R 58.3 x 40.8 x 20.2 K10,  N30,  N87,  T37,  T65 1000 - 8000
R 63.0 x 38.0 x 25.0 K10 - T65 1800 - 17600
R 68.0 x 48.0 x 13.0 K10 - T65 600 - 7700
R 87.0 x 54.3 x 13.5 K10 - T65 900 - 8200
R 102 x 65.8 x 15.0 K10,  N30,  N87,  T38,  T65 900 - 7900
R 140 x 103 x 25.0 K10,  N30,  N87,  T37 1100 - 8400
R 202.0 x 153 x 25.0 K10,  N30 970, 5200

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