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Ferrite Toroids

Toroidal Cores for Transformers


Ferrite toroids offer high magnetic efficiency as there is no air gap and the cross-sectional area is uniform. Magnetics® toroids are available in many sizes (outside diameters ranging from 2mm to 140mm) and materials (permeabilities ranging from 750µ to 15,000µ).  Different coatings can be applied to ferrite toroids  to increase winding ease and improve voltage breakdown. Hardware, such as toroid mounts and headers, is available.

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Key Characteristics

  • Composition: Mn • Zn • Fe
  • Shapes: Toroid
  • Sizes: 3 mm to 140 mm
  • Permeability: M=15,000µ, W=10,000µ, J=5,000µ,   T=3,000µ, F=3,000µ,  P=2,500µ, R=2,300µ,        C= 900µ, L=750µ
  • Coating Color: Grey 

Typical applications for high permeability ferrite toroids, 5,000µ J material, 10,000µ W material, and 15,000µ M material include common mode chokes, EMI filters, broadband transformers, pulse transformers and current transformers.  Special sizes of ferrite toroids are available in 5,000 J material for Ground Fault Interrupter (GFCI) applications. 750µ L material, 2,300µ R material, 2,500µ P material, and 3,000µ F material toroids are excellent choices for high frequency transformers.

Material Characteristics

Nine different materials for Magnetics Ferrite Toroids (L, R, P, F, T, J, W, C, M) exist.

View Materials Summary
Ferrite Toroid Part Number Identification

How to Order: Magnetics Ferrite Cores

Part # AL nH/T2 (nominal) Le
Path
Length
mm		 Ae
Cross
Section
mm2		 Ve
Volume
mm3		 WaAc
cm4		 OD
mm		 ID
mm		 Height
mm
L
750µ		 R
2300µ		 P
2500µ		 F
3000µ		 T
3000µ		 J
5000µ		 W
10000µ		 M
15000µ		 C
900µ
0907     1,884 2,260   3,765 7,530 11,380   22.7 13.7 310 0.03 9.53 5.59 7.11
1003   1,000 1,095 1,314 1,330  2,196 4,392 9,988   20.7 7.3 151 0.01 9.53 4.75 3.18
1005   1,510 1,650 1,980   3,308 6,616     20.7 10.9 227 0.02 9.53 4.75 4.78
1206   2,600 2,820 3,384   5,640 11,280   1,029 25 22 550 0.05 12.7 5.16 6.35
1303   680 745 894   1,488 2,976     31.7 7.1 226 0.04 12.7 8.14 3.15
1305   1,090   1,430   2,380 4,760     31.7 11.4 361 0.06 12.7 8.14 5.08
1306 424 1,360 1,485 1,782 1,700 2,968 5,936 8,476 508 31.7 14 451 0.07 12.7 8.14 6.35
1406     1,805 2,166   3,612 7,224 10,974   29.5 17.1 507 0.07 12.7 7.14 6.35
1407   1,240 1,356 1,630   2,715 5,430     29.5 12.9 381 0.05 12.7 7.14 4.78
1450       1,290   2,160 4,320     35 12.3 430 0.08 14 8.99 5
1506   1,020 1,111 1,290   2,160 4,590     30.6 11.2 343 0.05 13.2 7.37 3.96
1605 396 1,260 1,375 1,650 1,580  2,760 5,520 7,917   37.2 15.6 580 0.1 15.9 9.07 4.7
1606       1,920           37.2 18.96 706   15.9 9.07 5.7
1610           5,410 10,600     37.2 31.2 1,164 0.2 15.9 9.07 9.4
1809   2,810 3,050     6,115 12,200     41.1 43.1 1,783 0.32 18.4 9.75 10.3
2106     1,500 1,680   2,800 5,600     50.3 24.6 1,238 0.31 20.6 12.7 6.35
2109   1,930 2,100 2,520   4,200 8,400     50 34 1,733 0.43 20.6 12.7 8.89
2206 455 1,380 1,510 1,812 1,790 3,020 6,040 8,494   54.1 26.2 1,417 0.39 22.1 13.7 6.35
2207   1,720 1,875 2,250   3,700 7,400     54.1 32.5 1,763 0.48 22.1 13.7 7.9
2212   2,770 3,020 3,624   6,040 12,080 17,313   54.1 52.3 2,834 0.77 22.1 13.7 12.7
2507   1,800 1,958 2,348   3,913 7,825 11,072   61.5 37.1 2,284 0.69 25.3 15.4 7.66
2508   2,220   2,900   4,830 9,660     61.5 48 2,981 0.89 25.3 15.4 10
2908   1,450 1,585 1,902   3,170 6,340     73.2 37 2,679 1.05 29 19 7.43
2915   2,960 3,222 3,868   6,447 12,894     73.2 74.9 5,481 2.13 29 19 15.2
3113   2,850 3,100     6,200 12,400     75.4 73.6 5,547 2.11 31 19.1 12.74
3610     2,210 2,726   4,543 9,085     89.6 63.9 5,731 2.65 36 23 10
3615   3,100 3,366 4,040   6,736 13,400     89.6 95.9 8,596 3.98 36 23 15
3620            9,086       89.6 128 11,461 5.31 36 23 20
3806   2,020 2,200 2,640   4,400 8,800     82.9 58.3 4,644 1.66 38 19 6.35
3813   3,850 4,185 5,020 5,190  8,365 16,700     82.9 115.6 9,452 3.28 38.1 19 12.7
3825   8,060 8,762 10,040   16,730 33,400     82.9 231 19,304 6.56 38.1 19 25.4
4015   3,867 4,204   5,040  8,408 16,816     103 138 14,205 7.44 41.8 26.2 18
4416     5,830       23,200     88 187 16,559 5.33 44.3 19 15.7
4419       9,550           88    228 20,146 6.50 44.3 19 19.1
4715     4,030     8,075 16,100     110 145.5 16,063 8.34 46.9 27 15
4916   2,710 2,950 3,540   5,900 11,800     127 118 15,010 10.6 49.1 33.8 15.9
4920     3,032 3,640   6,065 12,130     123 119 14,700 9.45 49.1 31.8 15.9
4925   3,420 3,718 4,460   7,435 14,870     123 161.8 19,927 12.8 49.1 31.8 19.05
4932   5,430 5,900 7,080   11,800 23,600     127 236 30,000 21.2 49.1 33.8 31.3
6013           4,800        157.6 120.4 18,968 16.48  36 23 14.6
6113     3,491 4,107   6,845 13,690     145 156 22,500 15.5 61 35.6 12.7
6325             21,056     152 294 44,667 33.2 63 38 24
6326     6,270     12,500       152 300 45,598 33.9 63 38 24.5
7313   3,700 4,024 4,880 4,790  8,140 16,280     165 210 34,771 25 73.7 38.9 12.5
7325     8,050             165 423 70,009 50.3 73.7 38.9 25.2
7326              27,610     165 427 70,595   73.7  38.9 25.4
8613     2,726     5,520 11,040     215 188.8 40,852 45.7 85.7 55.5 12.7
8626             18,760     215 377 81,165 91.2 85.7 55.5 25.24
9715   3,025 3,464     6,575 11,178     255.3 267.2 68,281 90.8 102 65.8 15
9718   4,127 4,486     8,972 15,252     259.31 320.27 96,013 106 107 65 18
9725   5,732 6,230     9,346 21,184     259.31 514.3 133,351 170 107 65 25
9740   3,200 3,477     6,955 11,823     381.5 422.3 161,086 372 140 106 25
Part # AL nH/T2 (nominal) Le
Path
Length
mm		 Ae
Cross
Section
mm2		 Ve
Volume
mm3		 WaAc
cm4		 OD
  mm 		 ID
 mm 		 Height
mm
L
750µ		 R
2300µ		 P
2500µ		 F
3000µ		 J
5000µ		 W
10000µ		 M
15000µ		 C
900µ
0200       525 875 1,750     5.5 0.77 4 0.0001 2.54 1.27 1.27
0301       495 825 1,650     7.65 1.03 8 0.0003 3.51 1.8 1.27
0401   440   570 950 1,900   170 10.2 1.5 16 0.0006 4.83 2.29 1.27
0402       1,140 1,900 3,800   341 10.2 3.1 32 0.001 4.83 2.29 2.54
0502       440 735 1,470 2,152 129 9.2 1.05 10 0.0004 3.94 2.24 1.27
0503     716 885 1,475 2,950   258 9.2 2 19 0.0008 3.94 2.24 2.54
0601   450 488 585 980 1,960 2,963 177 13 2 27 0.001 5.84 3.05 1.52
0603 310   1,020 1,225 2,040 4,080 6,199 372 13 4.3 56 0.003 5.84 3.05 3.18
0705   1,920 2,088 2,505 4,175 8,350 12,535 751 15 9.9 149 0.008 7.62 3.18 4.78
0907     1,884 2,260 3,765 7,530     22.7 13.7 310 0.03 9.53 5.59 7.11
1003 332 1,000 1,095 1,314 2,196 4,392 6,644 399 20.7 7.3 151 0.01 9.53 4.75 3.18
1005   1,510 1,650 1,980 3,308 6,616 9,988 599 20.7 10.9 227 0.02 9.53 4.75 4.78
1206     2,820   5,640 11,280 17,163   25 22 550 0.05 12.7 5.16 6.35
1303     745 894   2,976     31.7 7.1 226 0.04 12.7 8.14 3.15
Part # AL nH/T2 (nominal) Le
Path
Length
mm		 Ae
Cross
Section
mm2		 Ve
Volume
mm3		 WaAc
cm4		 OD
mm		 ID
mm		 Height
mm
L
750µ		 R
2300µ		 P
2500µ		 F
3000µ		 J
5000µ		 W
10000µ		 M
15000µ		 C
900µ
0200       525 875 1,750     5.5 0.77 4 0.0001 2.54 1.27 1.27
0301   380   495 825 1,650     7.65 1.03 8 0.0003 3.51 1.83 1.27
0401       570 950 1,900     10.2 1.5 16 0.0006 4.83 2.29 1.27
0402       1,140   3,800     10.2 3.1 32 0.001 4.83 2.29 2.54
0502       440 735 1,470   129 9.2 1.05 10 0.0004 3.94 2.24 1.27
0503         1,475 2,950     9.2 2 19 0.0008 3.94 2.24 2.54
0601     488 585 980 1,960     13 2 27 0.001 5.84 3.05 1.52
0603     1,020 1,225 2,040 4,080 6,199   13 4.3 56 0.003 5.84 3.05 3.18
0705   1,920 2,088 2,505 4,175 8,350 12,535   15 9.9 149 0.008 7.62 3.18 4.78
0907     1,884 2,260 3,765 7,530     22.7 13.7 310 0.03 9.53 5.59 7.11
1003 332 1,000 1,095 1,314 2,196 4,392 6,644 399 20.7 7.3 151 0.01 9.53 4.75 3.18
1005     1,650 1,980 3,308 6,616 9,988 599 20.7 10.9 227 0.02 9.53 4.75 4.78
1206     2,820 3,384 5,640 11,280 17,163   25 22 550 0.05 12.7 5.16 6.35
1303     745 894 1,488 2,976     31.7 7.1 226 0.04 12.7 8.14 3.15
1305       1,430 2,380 4,760     31.7 11.4 361 0.06 12.7 8.14 5.08
1306 424 1,360 1,485 1,782 2,968 5,936 8,476   31.7 14 451 0.07 12.7 8.14 6.35
1405         2,890       29.5 13.7 405 0.05 12.7 7.14 5.08
1406     1,805 2,166 3,612 7,224     29.5 17.1 507 0.07 12.7 7.14 6.35
1407   1,240 1,356 1,630 2,715 5,430   470 29.5 12.9 381 0.05 12.7 7.14 4.78
1450         2,160 4,320     35 12.3 430 0.08 14 8.99 5
1506     1,111 1,334 2,295 4,590     30.6 11.2 343 0.05 13.2 7.37 3.96
1605 396 1,260 1,375 1,650 2,760 5,520     37.2 15.6 580 0.1 15.9 9.07 4.7
1610         5,410       37.2 31.2 1,164 0.2 15.9 9.07 9.4
1809   2,810 3,050   6,115 12,200     41.1 43.1 1,783 0.32 18.4 9.75 10.3
2106         2,800       50.3 24.6 1,238 0.31 20.6 12.7 6.35
2109         4,200 8,400     50 34 1,733 0.43 20.6 12.7 8.89
2206 455 1,380 1,510 1,812 3,020 6,040   538 54.1 26.2 1,417 0.39 22.1 13.7 6.35
2207   1,720 1,875 2,250 3,700 7,400     54.1 32.5 1,763 0.48 22.1 13.7 7.9
2212   2,770 3,020 3,624 6,040 12,080     54.1 52.3 2,834 0.77 22.1 13.7 12.7
2507   1,800 1,958 2,348 3,913 7,825     61.5 37.1 2,284 0.69 25.3 15.4 7.66
2508   2,220     4,830       61.5 48 2,981 0.89 25.3 15.4 10
2908   1,450 1,585 1,902 3,170 6,340     73.2 37 2,679 1.05 29 19 7.43
2915   2,960 3,222 3,868 6,447 12,894     73.2 74.9 5,481 2.13 29 19 15.2
3113   2,850 3,100   6,200 12,400     75.4 73.6 5,547 2.11 31 19.1 12.74
3610   2,030 2,210 2,726 4,543 9,085     89.6 63.9 5,731 2.65 36 23 10
3615   3,100 3,366 4,040 6,736 13,400     89.6 95.9 8,596 3.98 36 23 15
3806     2,200 2,640 4,400 8,800     82.9 58.3 4,644 1.66 38 19 6.35
3813   3,850 4,185 5,020 8,365 16,700     82.9 115.6 9,452 3.28 38.1 19 12.7
3825     8,762 10,040 16,730 33,400     82.9 231 19,304 6.56 38.1 19 25.4
4015   3,867 4,204   8,408 16,816     103 138 14,205 7.44 41.8 26.2 18
4416     5,830           88 187 16,559 5.33 44.3 19 15.7
4419     7,970 9,550         88 228 20,146 6.50 44.3 19 19.1
4715     4,030     16,100      110 145.5 16,063 8.34 46.9 27 15
4916   2,710 2,950 3,540 5,900 11,800     127 118 15,010 10.6 49.1 33.8 15.9
4920     3,032 3,640 6,065 12,130     123 119 14,700 9.45 49.1 31.8 15.9
4925     3,718 4,460 7,435 14,870     123 161.8 19,927 12.8 49.1 31.8 19.05
4932     5,900 7,080 11,800 23,600     127 236 30,000 21.2 49.1 33.8 31.3
6013     1,960           157.6 118.9 18,745 16.48 61 41.8 12.6
6019         7,100       157.6 180.5 28,453 24.7 61 41.8 19.05
6113     3,491 4,107 6,845 13,690     145 156 22,500 15.5 61 35.6 12.7
6326         12,500       152 300 45,598 33.9 63 38 24.5
7313   3,700 4,024 4,880 8,140 16,280     165 210 34,771 25 73.7 38.9 12.5
7325   7,470             165 423 70,009 50.3 73.7 38.9 25.2
8613     2,726   5,520 11,040     215 188.8 40,852 45.7 85.7 55.5 12.7
8625         10,960       215 375 80,717 90.8 85.7 55.5 25.26
8626           18,760     215 377 81,165 91.2 85.7 55.5 25.24
9715   3,025 3,464   6,575 11,178     255.3 267.2 68,281 90.8 102 65.8 15
9718   4,127 4,486   8,972 15,252     259 370 96,000 106 107 65 18
9725   5,732 6,230   12,461 21,184     259.31 514.3 133,351 171 107 65 25
9740   3,200 3,477   6,955 11,823     381.5 422.3 161,086 372 140 106 25