Toroids

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 2 mm to 140 mm) and materials (permeabilities ranging from 900µ to 10,000µ). Different coatings can be applied to increase winding ease and improve voltage breakdown.

Typical applications for high permeability toroids, 5,000µ J material and 10,000µ W material, include common mode chokes, broadband transformers, pulse transformers and current transformers. Special sizes are available in 5,000 J material for Ground Fault Interrupter (GFCI) applications. 900µ L material, 2,300µ R material, 2,500µ P material, and 3,000µ F material are excellent choices for high frequency transformers.

Learn More about Ferrite Toroids

Toroids - Uncoated (0)

Part #	L 900µ	R 2300µ	P 2500µ	F 3000µ	J 5000µ	W 10000µ	C 900µ	L_e Path Length mm	A_e Cross Section mm²	V_e Volume mm³	WaAc cm⁴	OD mm	ID mm	Height mm
0200				525	875	1,750		5.5	0.77	4	0.000077	2.54	1.27	1.27
0301		380		495	825	1,650		7.65	1.03	8	0.0002	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	0.0003	3.94	2.24	1.27
0503					1,475	2,950		9.2	2	19	0.0006	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		13	4.3	56	0.003	5.84	3.05	3.18
0705		1,920	2,088	2,505	4,175	8,350		15	9.9	149	0.007	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	399	1,000	1,095	1,314	2,196	4,392	399	22.7	13.7	310	0.03	9.53	5.59	7.11
1005			1,650	1,980	3,308	6,616	599	20.7	10.9	227	0.018	9.53	4.75	4.78
1206			2,820	3,384	5,640	11,280		25	22	550	0.04	12.7	5.16	6.35
1303			745	894	1,488	2,976		31.7	7.1	226	0.03	12.7	8.14	3.15
1305				1,430	2,380	4,760		31.7	11.4	361	0.05	12.7	8.14	5.08
1306	508	1,360	1,485	1,782	2,968	5,936		31.7	14	451	0.07	12.7	8.14	6.35
1405					2,890			29.5	13.7	405	0.054	12.7	7.14	5.08
1406			1,805	2,166	3,612	7,224		29.5	17.1	507	0.06	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	0.07	14	8.99	5
1506			1,111	1,334	2,295	4,590		30.6	11.2	343	0.04	13.2	7.37	3.96
1605	475	1,260	1,375	1,650	2,760	5,520		37.2	15.6	580	0.09	15.9	9.07	4.7
1610					5,410			37.2	31.2	1,164		15.9	9.07	9.4
1809		2,810	3,050		6,115	12,200		41.1	43.1	1,783	0.3	18.4	9.75	10.3
2106					2,800			50.3	24.6	1,238	0.29	20.6	12.7	6.35
2109					4,200	8,400		50	34	1,733	0.41	20.6	12.7	8.89
2206	547	1,380	1,510	1,812	3,020	6,040	538	54.1	26.2	1,417	0.37	22.1	13.7	6.35
2207		1,720	1,875	2,250	3,700	7,400		54.1	32.5	1,763	0.46	22.1	13.7	7.9
2212		2,770	3,020	3,624	6,040	12,080		54.1	52.3	2,834	0.75	22.1	13.7	12.7
2507		1,800	1,958	2,348	3,913	7,825		61.5	37.1	2,284	0.7	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	1.02	29	19	7.43
2915		2,960	3,222	3,868	6,447	12,894		73.2	74.9	5,481	2.1	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
3205			1,610	1,930				67.2	36.4	2,451	0.61	32	15	4.5
3610		2,030	2,210	2,726	4,543	9,085		89.6	63.9	5,731	2.61	36	23	10
3615		3,100	3,366	4,040	6,736	13,400		89.6	95.9	8,596	3.93	36	23	15
3806			2,200	2,640	4,400	8,800		82.9	58.3	4,644	1.62	38	19	6.35
3813		3,850	4,185	5,020	8,365	16,700		82.9	115.6	9,452	3.27	38.1	19	12.7
3825			8,762	10,040	16,730	33,400		82.9	231	19,304	6.58	38.1	19	25.4
4015		3,867	4,204		8,408	16,816		103	138	14,205	7.45	41.8	26.2	18
4416			5,830					84	189	16,770	5.33	44.3	19	15.9
4419			7,970	9,550				88.4	228	20,146		44.3	19	19.1
4715			4,030			16,100		110	145.5	16,063	8.12	46.9	27	15
4916		2,710	2,950	3,540	5,900	11,800		127	118	15,010	10.4	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	14,780		123	161.8	19,927	11.6	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
6019					7,100			157.6	180.5	28,453	24	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	34.4	63	38	24.5
7313		3,700	4,024	4,880	8,140	16,280		165	210	34,771	25.2	73.7	38.9	12.5
7325		7,470						165	423	70,009	50.1	73.7	38.9	25.2
8613			2,726		5,520	11,040		215	188.8	40,852	45.2	85.7	55.5	12.7
8625					10,960			215	375	80,717	90	85.7	55.5	25.26
8626						18,760		215	377	81,165	90	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	170.7	107	65	25
9740		3,200	3,477		6,955	11,823		381.5	422.3	161,086	372.5	140	106	25

Toroids - Epoxy coated (Z)

Part #	L 900µ	R 2300µ	P 2500µ	F 3000µ	J 5000µ	W 10000µ	C 900µ	L_e Path Length mm	A_e Cross Section mm²	V_e Volume mm³	WaAc cm⁴	OD mm	ID mm	Height mm
0907			1,884	2,260	3,765	7,530		22.7	13.7	310	0.03	9.53	5.59	7.11
1003		1,000	1,095	1,314	2,196	4,392		20.7	7.3	151	0.012	9.53	4.75	3.18
1005		1,510	1,650	1,980	3,308	6,616		20.7	10.9	227	0.018	9.53	4.75	4.78
1206		2,600	2,820	3,384	5,640	11,280	1,029	25	22	550	0.04	12.7	5.16	6.35
1303		680	745	894	1,488	2,976		31.7	7.1	226	0.03	12.7	8.14	3.15
1305		1,090		1,430	2,380	4,760		31.7	11.4	361	0.05	12.7	8.14	5.08
1306	424	1,360	1,485	1,782	2,968	5,936		31.7	14	451	0.07	12.7	8.14	6.35
1406			1,805	2,166	3,612	7,224		29.5	17.1	507	0.06	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	0.07	14	8.99	5
1506		1,020	1,111	1,290	2,160	4,590		30.6	11.2	343	0.04	13.2	7.37	3.96
1605	396	1,260	1,375	1,650	2,760	5,520		37.2	15.6	580	0.09	15.9	9.07	4.7
1610					5,410	10,600		37.2	31.2	1,164		15.9	9.07	9.4
1809		2,810	3,050		6,115	12,200		41.1	43.1	1,783	0.3	18.4	9.75	10.3
2106			1,500	1,680	2,800	5,600		50.3	24.6	1,238	0.29	20.6	12.7	6.35
2109		1,930	2,100	2,520	4,200	8,400		50	34	1,733	0.41	20.6	12.7	8.89
2206	455	1,380	1,510	1,812	3,020	6,040		54.1	26.2	1,417	0.37	22.1	13.7	6.35
2207		1,720	1,875	2,250	3,700	7,400		54.1	32.5	1,763	0.46	22.1	13.7	7.9
2212		2,770	3,020	3,624	6,040	12,080		54.1	52.3	2,834	0.75	22.1	13.7	12.7
2507		1,800	1,958	2,348	3,913	7,825		61.5	37.1	2,284	0.7	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	1.02	29	19	7.43
2915		2,960	3,222	3,868	6,447	12,894		73.2	74.9	5,481	2.1	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	2.61	36	23	10
3615		3,100	3,366	4,040	6,736	13,400		89.6	95.9	8,596	3.93	36	23	15
3806		2,020	2,200	2,640	4,400	8,800		82.9	58.3	4,644	1.62	38	19	6.35
3813		3,850	4,185	5,020	8,365	16,700		82.9	115.6	9,452	3.27	38.1	19	12.7
3825		8,060	8,762	10,040	16,730	33,400		82.9	231	19,304	6.58	38.1	19	25.4
4015		3,867	4,204		8,408	16,816		103	138	14,205	7.45	41.8	26.2	18
4416			5,830			23,200		84	189	16,770	5.33	44.3	19	15.9
4419				9,550				88.4	228	20,146		44.3	19	19.1
4715			4,030		8,075	16,100		110	145.5	16,063	8.12	46.9	27	15
4916		2,710	2,950	3,540	5,900	11,800		127	118	15,010	10.4	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	14,780		123	161.8	19,927	11.6	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
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	34.4	63	38	24
6326			6,270		12,500			152	300	45,598	34.4	63	38	24.5
7313		3,700	4,024	4,880	8,140	16,280		165	210	34,771	25.2	73.7	38.9	12.5
7325			8,050					165	423	70,009	50.1	73.7	38.9	25.2
8613			2,726		5,520	11,040		215	188.8	40,852	45.2	85.7	55.5	12.7
8626						18,760		215	377	81,165	90	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	170.7	107	65	25
9740		3,200	3,477		6,955	11,823		381.5	422.3	161,086	372.5	140	106	25

Toroids - Nylon coated (V)

Part #	R 2300µ	P 2500µ	F 3000µ	J 5000µ	C 900µ	L_e Path Length mm	A_e Cross Section mm²	V_e Volume mm³	WaAc cm⁴	OD mm	ID mm	Height mm
1206		2,820	3,384	5,640		25	22	550	0.04	12.7	5.16	6.35
1303		745	894			31.7	7.1	226	0.03	12.7	8.14	3.15
1305			1,430	2,380		31.7	11.4	361	0.05	12.7	8.14	5.08
1306	1,360	1,485	1,782	2,968	508	31.7	14	451	0.07	12.7	8.14	6.35
1406		1,805	2,166	3,612	625	29.5	17.1	507	0.06	12.7	7.14	6.35
1407	1,240	1,356	1,630	2,715		29.5	12.9	381	0.05	12.7	7.14	4.78
1450				2,160		35	12.3	430	0.07	14	8.99	5
1506	1,020	1,111	1,290	2,160		30.6	11.2	343	0.04	13.2	7.37	3.96
1605	1,260	1,375	1,650	2,760		37.2	15.6	580	0.09	15.9	9.07	4.7
1610				5,410		37.2	31.2	1,164		15.9	9.07	9.4
1809	2,810	3,050		6,115		41.1	43.1	1,783	0.3	18.4	9.75	10.3
2106		1,500	1,680	2,800		50.3	24.6	1,238	0.29	20.6	12.7	6.35
2109		2,100	2,520	4,200		50	34	1,733	0.41	20.6	12.7	8.89
2206	1,380	1,510	1,812	3,020	538	54.1	26.2	1,417	0.37	22.1	13.7	6.35
2207	1,720	1,875	2,250	3,700		54.1	32.5	1,763	0.46	22.1	13.7	7.9
2212	2,770	3,020	3,624	6,040		54.1	52.3	2,834	0.75	22.1	13.7	12.7
2507	1,800	1,958	2,348	3,913		61.5	37.1	2,284	0.7	25.3	15.4	7.66
2508			2,900	4,830		61.5	48	2,981	0.89	25.3	15.4	10
2908	1,450	1,585	1,902	3,170		73.2	37	2,679	1.02	29	19	7.43

Toroids - Parylene coated (Y)

Part #	L 900µ	R 2300µ	P 2500µ	F 3000µ	J 5000µ	W 10000µ	C 900µ	L_e Path Length mm	A_e Cross Section mm²	V_e Volume mm³	WaAc cm⁴	OD mm	ID mm	Height mm
0200				525	875	1,750		5.5	0.77	4	0.000077	2.54	1.27	1.27
0301				495	825	1,650		7.65	1.03	8	0.0002	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		10.2	3.1	32	0.001	4.83	2.29	2.54
0502				440	735	1,470	129	9.2	1.05	10	0.0003	3.94	2.24	1.27
0503			716	885	1,475	2,950	258	9.2	2	19	0.0006	3.94	2.24	2.54
0601		450	488	585	980	1,960	177	13	2	27	0.001	5.84	3.05	1.52
0603	310		1,020	1,225	2,040	4,080	372	13	4.3	56	0.003	5.84	3.05	3.18
0705		1,920	2,088	2,505	4,175	8,350	751	15	9.9	149	0.007	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	399	20.7	7.3	151	0.012	9.53	4.75	3.18
1005		1,510	1,650	1,980	3,308	6,616	599	20.7	10.9	227	0.018	9.53	4.75	4.78
1206			2,820	3,384	5,640	11,280		25	22	550	0.04	12.7	5.16	6.35
1303			745	894	1,488	2,976		31.7	7.1	226	0.03	12.7	8.14	3.15
1305					2,380	4,760		31.7	11.4	361	0.05	12.7	8.14	5.08
1306			1,485	1,782	2,968	5,936		31.7	14	451	0.07	12.7	8.14	6.35
1406		1,660		2,166	3,612	7,224		29.5	17.1	507	0.06	12.7	7.14	6.35
1407		1,240			2,715			29.5	12.9	381	0.05	12.7	7.14	4.78
1450						4,320		35	12.3	430	0.07	14	8.99	5
1506				1,290	2,160			30.6	11.2	343	0.04	13.2	7.37	3.96
1605			1,375	1,650				37.2	15.6	580	0.09	15.9	9.07	4.7
2212		2,770						54.1	52.3	2,834	0.75	22.1	13.7	12.7

Each Magnetics part has a unique ordering code that identifies material, shape, size and finish. Below is an overview of the ordering code for ferrite toroids.

RoHS Compliant