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Toroids (5968001101)

Part Number: 5968001101
Low Permeability, 68 (ui=16) material
Inductive Components
Closed Magnetic Circuit
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Part Number: 5968001101


Explanation of Part Numbers:
– Digits 1 & 2 = Product Class
– Digits 3 & 4 = Material Grade
•– 9th digit 1 = Parylene Coating, 2 = Thermo-Set Plastic Coating

A ring configuration provides the ultimate utilization of the intrinsic ferrite material properties. Toroidal cores are used in a wide variety of applications such as power input filters, ground-fault interrupters, common-mode filters and in pulse and broadband transformers.

•All toroidal cores are supplied burnished to break sharp edges.

Coating Options:
••– Toroids with an outside diameter of 9.5 mm (0.375″) or smaller can be supplied Parylene C coated. The Parylene coating will increase the “A” and “C” dimensions and decrease the “B” dimension a maximum of 0.038 mm (0.0015″). The ninth digit of a Parylene coated toroid part number is a “1”. See reference tables for the material characteristics of Parylene C. Parylene C coating is RoHS compliant.
•– Toroids with an outside diameter of 9.5 mm (0.375″) or larger can be supplied with a uniform coating of thermo-set plastic coating. This coating will increase the “A” and “C” dimensions and decrease the “B” dimension a maximum of 0.5 mm (0.020″). The 9th digit of the thermo-set plastic coated toroid part number is a “2”. Thermo-set plastic coating is RoHS compliant.
•– Thermo-set plastic coated parts can withstand a minimum breakdown voltage of 1000 Vrms, uniformly applied across the “C” dimension of the toroid.

•For any toroidal core requirement not listed in the catalog, please contact our customer service department for availability and pricing.

The “C” dimension may be modified to suit specific applications.

Weight: 2.4 (g)

Dimmmmm tolnominal inchinch misc.

Chart Legend
Σl/A  :  Core Constant,    le :  Effective Path Length,    Ae :  Effective Cross-Sectional Area,    Ve :  Effective Core Volume
AL :  Inductance Factor  

Electrical Properties
AL(nH)7.2 Min

Toroids are tested for AL values at 10 kHz.

Our highest frequency NiZn ferrite intended for broadband transformers, antennas and Hi Q inductor applications up to 150 MHz.

Strong magnetic fields or excessive mechanical stresses may result in irreversible changes in permeability or losses.

This material is only supplied to customer specific requirements and close consultation with our application staff is suggested.

 68 Material Characteristics
Property Unit Symbol Value
Initial Permeability @ B < 10 gauss µi 16
Flux Density @ Field Strength Gauss
Residual Flux Density Gauss Br 900
Coercive Force Oersted Hc 6.5
Loss Factor @ Frequency 10 -6
Tan δ/ µi 400
Temperature Coefficient of Initial Permeability (20 -70°C) %/°C 0.10
Curie Temperature °C Tc >500
Resistivity ohm-cm ρ 1×107

**** Characteristic curves are measured on standard Toroids (18/10/6 mm)  at 25°C and 10 kHz unless otherwise indicated. Impedance characteristics are measured on standard shield beads (3.5/1.3/6.0 mm) unless otherwise indicated.

Ferrite Material Constants

Specific Heat
0.25 cal/g/°C
Thermal Conductivity
3.5 - 4.5 mW/cm-°C
Coefficient of Linear Expansion
8 - 10x10-6/°C
Tensile Strength
4.9 kgf/mm2
Compressive Strength
42 kgf/mm2
Young's Modulus
15x103 kgf/mm2
Hardness (Knoop)
Specific Gravity
≈4.7 g/cm3
The above quoted properties are typical for Fair-Rite MnZn and NiZn ferrites.

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