Toroidal Transformer Core Ferrite Ring

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Toroidal Transformer Core Ferrite Ring , Power Transformer  Toroid Ferrite Core​​​​​​​ – Toroidal Ferrite Core​​​​​​​
The toroidal ferrite core uses a toroidal (ring or donut) shape ferrite core, which has the characteristics of isolating eddy current, low permeability, and suppressing interference. Due to the superior electrical performance of the ring, the usage of toroidal ferrite core is greatly increased
We provide toroidal ferrite cores in different sizes. You can use it in power transformers, current transformers, instrument transformers, inductors, chokes, ballasts, voltage stabilizers, welding transformers, broadband transformers, filters, etc. You can choose the bottle size that best suits your needs. In addition, if what you need is not in the list, please feel free to contact us. We can help you customize the toroidal ferrite core.

Toroids provide a convenient and very effective shape for many applications (wide band, pulse, power, and inductor). The continuous magnetic path yields the highest effective permeability and lowest flux leakage of any shape.
Material (-X): prefix for NiZn (ie. M-665) or suffix for MnZn (ie. T-665-M20)
Thickness: may be adjusted to suit application
Tolerances (dimensional): ±2% (nominal value may vary based on material choice)
Tolerance (magnetic): Inductance ±20% (grading available)
Finishing: edge rounding and parylene (or other) coating available

Click to Download MnZn FERRITE CORE TOROIDAL TYPE SIZE PDF

Ferrite Toroid cores are coated to provide not only a smoother corner radius but also a winding surface. In these ferrite cores, a coating is beneficial because it provides additional edge coverage. Not only protection for the edges, but the coating also provides an insulation function.

Epoxy paint is used for coating the toroid cores. They are usually available in green, blue & gray colors with CFR. Epoxy coating is UL approved and the UL file number is E483791.

The coating material for the product is in compliance with RoHS directive 2011/65/EU.

Parylene coating can be used for small ferrite rings that have a low coating thickness and high dielectric strength.

Coating of the cores causes the initial permeability (μi) to drop depending on the size of the cores. This may also happen when the cores are subjected to high winding forces or have high permeability.

Benefits of Coated Toroids
Ferrite toroids are compatible with different types of coatings including parylene, epoxy and powder coatings; these increase winding ease and improve voltage breakdown.
Epoxy coatings can work up to 200 degrees Celsius.
The coating not only offers protection for the edges, but also provides an insulation function to the cores.
The coating of ferrite toroids is necessary to create an insulation barrier between wire and ferrite cores (direct winding on the cores) to avoid a short circuit.
Coating doesn’t influence the AL value of toroids

A toroidal core coated with epoxy finishing offers the benefits of:
Moisture resistance
Chemical resistance
Durability
Strength
Strong dielectric properties

TOROIDS:
SMALL (OD < 0.512) pn OUTSIDE DIAMETER inches INSIDE DIAMETER inches THICKNESS inches T-1038-X 0.052 0.032 0.040 020728-X 0.062 0.021 0.032 11-005-X 0.080 0.050 0.025 11-012-X 0.100 0.050 0.050 11-020-X 0.100 0.070 0.030 11-106-X 0.120 0.050 0.050 11-024-X 0.120 0.070 0.060 11-040-X 0.135 0.070 0.060 11-032-X 0.138 0.051 0.128 11-149-X 0.155 0.070 0.065 11-009-X 0.155 0.079 0.040 11-050-X 0.155 0.088 0.050 11-090-X 0.163 0.063 0.125 11-091-X 0.163 0.063 0.250 T-1056-X 0.175 0.077 0.050 11-080-X 0.190 0.090 0.050 11-081-X 0.194 0.095 0.125 11-120-X 0.230 0.120 0.060 11-122-X 0.230 0.120 0.120 T-1057-X 0.237 0.070 0.120 T-1146-X 0.241 0.112 0.120 080004-X 0.246 0.064 0.250 T-1023-X 0.250 0.131 0.187 082168-X 0.250 0.152 0.085 080364-X 0.280 0.085 0.275 11-160-X 0.300 0.125 0.188 11-170-X 0.354 0.236 0.118 11-220-X 0.375 0.187 0.125 11-260-X 0.500 0.281 0.188 11-261-X 0.500 0.281 0.250 11-251-X 0.500 0.312 0.125 11-250-X 0.500 0.312 0.250 TOROIDS: MEDIUM (OD 0.513 – 1.062) pn OUTSIDE DIAMETER inches INSIDE DIAMETER inches THICKNESS inches 11-247-X 0.551 0.354 0.197 11-270-X 0.625 0350 0.185 T-663-X 0.870 0.540 0.250 11-295-X 0.906 0.551 0.276 T-1015-X 1.000 0500 0.250 TOROIDS: LARGE (OD > 1.062)

T-665-X 1.250 0.750 0.375
T-1100-X 1.395 0.641 0.375
T-1086-X 1.550 0.965 0.375
T-1090-X 1.785 0.770 0.375
T-682-X 1.855 0.450 0.375  Toroid Ferrite Core​​​​​​​
020819-x 2.000 1.000 0.300
T-1807-X 2.000 1.250 0.500
T-989-X 2.400 1.400 0.500
T-1808-X 2.500 0.500 0.750
081963-X 2.550 1.750 0.750
020601-X 2.975 0.990 0.750
T-987-X 3.100 1.865 0.500
T-1337-X 3.320 1.725 0.500  Power Transformer Ferrite Toroid Cores
T-1043-X 3.400 1.760 0.500
T-995-X 3.500 2.000 0.500
T-1809-X 3.570 1.185 1.000
020680-X 4.000 2.950 1.000
T-1443-X 4.300 2.785 0.500
T-1113-X 4.320 1.875 0.500
T-1044-X 4.420 2.490 0.500
T-1054-X 5.475 3.975 0.500
T-1009-X 5.725 2.440 1.000
T-1551-X 5.937 2.700 1.000
T-1112-X 6.260 1.995 1.000
T-1006-X 6.260 3.875 1.000
T-1529-X 6.260 4.195 1.000
T-1182-X 6.260 4.545 1.000
T-1078-X 9.500 7.000 1.000
T-1813-X 10.060 3.025 0.500