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Ferrite Cores

Manufacturer Series Packaging Part Status Core Type Supplier Device Package Diameter Inductance Factor (Al) Tolerance Material Gap Effective Permeability (µe) Initial Permeability (µi) Core Factor (ΣI/A) mm⁻¹ Effective Length (le) mm Finish Effective Area (Ae) mm² Effective Magnetic Volume (Ve) mm³ Minimum Core Cross Section (Amin) mm² Height Length 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Photo Mfr. Part # Availability Price Quantity Datasheet Series Packaging Part Status Core Type Supplier Device Package Diameter Inductance Factor (Al) Tolerance Material Gap Effective Permeability (µe) Initial Permeability (µi) Core Factor (ΣI/A) mm⁻¹ Effective Length (le) mm Finish Effective Area (Ae) mm² Effective Magnetic Volume (Ve) mm³ Minimum Core Cross Section (Amin) mm² Height Length Width
CF139 T5818

CF139 T5818

COSMO INDIA TOROIDAL RINGS MN-Z

Cosmo Ferrites Ltd.

500
CF139 T5818

Datasheet

- Bulk Active Toroid TX 58 x 41 x 18 2.354" (59.80mm) - ±30% - Ungapped - - 1.0 152.0 Epoxy 152.0 23200.0 - 0.729" (18.60mm) - -
50ALL 25-25-25-0000

50ALL 25-25-25-0000

I Bar / Block

Ferrite International

3,600
50ALL 25-25-25-0000

Datasheet

* Bulk Active I - - - ±25% 50ALL - - - - - Uncoated - - - 1.000" (25.40mm) 1.000" (25.40mm) 1.000" (25.40mm)
5099 25-25-25-0000

5099 25-25-25-0000

I Bar / Block

Ferrite International

3,600
5099 25-25-25-0000

Datasheet

* Bulk Active I - - - ±25% 5099 - - - - - Uncoated - - - 1.000" (25.40mm) 1.000" (25.40mm) 1.000" (25.40mm)
7070 25-25-25-0000

7070 25-25-25-0000

I Bar / Block

Ferrite International

3,600
7070 25-25-25-0000

Datasheet

* Bulk Active I - - - ±25% 7070 - - - - - Uncoated - - - 1.000" (25.40mm) 1.000" (25.40mm) 1.000" (25.40mm)
7099 25-25-25-0000

7099 25-25-25-0000

I Bar / Block

Ferrite International

3,600
7099 25-25-25-0000

Datasheet

* Bulk Active I - - - ±25% 7099 - - - - - Uncoated - - - 1.000" (25.40mm) 1.000" (25.40mm) 1.000" (25.40mm)
N001 25-25-25-0000

N001 25-25-25-0000

I Bar / Block

Ferrite International

3,600
N001 25-25-25-0000

Datasheet

* Bulk Active I - - - ±25% N001 - - - - - Uncoated - - - 1.000" (25.40mm) 1.000" (25.40mm) 1.000" (25.40mm)
7070 81-13-16-0000

7070 81-13-16-0000

I Bar / Mate with 81mm UR Core

Ferrite International

4,320
7070 81-13-16-0000

Datasheet

* Bulk Active I - - - ±25% 7070 - - - - - Uncoated - - - 0.500" (12.70mm) 3.197" (81.20mm) 0.622" (15.80mm)
7099 81-13-16-0000

7099 81-13-16-0000

I Bar / Mate with 81mm UR core

Ferrite International

4,320
7099 81-13-16-0000

Datasheet

* Bulk Active I - - - ±25% 7099 - - - - - Uncoated - - - 0.500" (12.70mm) 3.197" (81.20mm) 0.622" (15.80mm)
50ALL 81-13-16-0000

50ALL 81-13-16-0000

I Bar / Mate with 81mm UR Core

Ferrite International

4,320
50ALL 81-13-16-0000

Datasheet

* Bulk Active I - - - ±25% 50ALL - - - - - Uncoated - - - 0.500" (12.70mm) 3.197" (81.20mm) 0.622" (15.80mm)
CF196 EE6527

CF196 EE6527

COSMO INDIA E CORE MN-ZN

Cosmo Ferrites Ltd.

500
CF196 EE6527

Datasheet

- Bulk Active E E 65 x 32 x 27 - - - N27 Ungapped - - - - Uncoated - - - 1.291" (32.80mm) 2.559" (65.00mm) 1.079" (27.40mm)
50ALL 81-42-16-0000

50ALL 81-42-16-0000

UR 81

Ferrite International

1,800
50ALL 81-42-16-0000

Datasheet

- Bulk Active UR - - - ±25% 50ALL Ungapped - - - - Uncoated - - - 1.634" (41.50mm) 3.197" (81.20mm) 0.622" (15.80mm)
7099 81-42-16-0000

7099 81-42-16-0000

UR 81

Ferrite International

1,800
7099 81-42-16-0000

Datasheet

- Bulk Active UR - - - ±25% 7099 Ungapped - - - - Uncoated - - - 1.634" (41.50mm) 3.197" (81.20mm) 0.622" (15.80mm)
7070 81-42-16-0000

7070 81-42-16-0000

UR 81

Ferrite International

1,800
7070 81-42-16-0000

Datasheet

- Bulk Active UR - - - ±25% 7070 Ungapped - - - - Uncoated - - - 1.634" (41.50mm) 3.197" (81.20mm) 0.622" (15.80mm)
CF296 ETD4917

CF296 ETD4917

COSMO INDIA E CORE MN-ZN

Cosmo Ferrites Ltd.

500
CF296 ETD4917

Datasheet

- Bulk Active E EER 49 - 6.25 µH ±25% PC47 Ungapped - - 0.4 91.3 Uncoated 231.0 21100.0 - 0.748" (19.00mm) 1.929" (49.00mm) 0.677" (17.20mm)
50ALL 70-54-32-0000

50ALL 70-54-32-0000

E-Core

Ferrite International

1,728
50ALL 70-54-32-0000

Datasheet

- Bulk Active E - - - ±25% 50ALL Ungapped - - - - Uncoated - - - - 2.756" (70.00mm) 1.248" (31.70mm)
CF139 PQ4040

CF139 PQ4040

COSMO INDIA PQ CORE MN-ZN

Cosmo Ferrites Ltd.

500
CF139 PQ4040

Datasheet

- Bulk Active PQ PQ 40 x 40 - 4.3 µH -20%, +30% N87 Ungapped - 2200 0.49 92.5 Uncoated 188.3 17430.0 - 0.783" (19.90mm) 1.594" (40.50mm) 1.102" (28.00mm)
CF249 EE6420P

CF249 EE6420P

COSMO INDIA E CORE MN-ZN

Cosmo Ferrites Ltd.

500
CF249 EE6420P

Datasheet

- Bulk Active E E 64 x 10 x 50 - - - 3C92 - - - - - Uncoated - - - 0.402" (10.20mm) 2.520" (64.00mm) 2.000" (50.80mm)
7070 81-45-16-0000

7070 81-45-16-0000

UR 81

Ferrite International

1,800
7070 81-45-16-0000

Datasheet

- Bulk Active UR - - - ±25% 7070 Ungapped - - - - Uncoated - - - 1.755" (44.58mm) 3.197" (81.20mm) 0.622" (15.80mm)
50ALL 81-45-16-0000

50ALL 81-45-16-0000

UR 81

Ferrite International

1,800
50ALL 81-45-16-0000

Datasheet

- Bulk Active UR - - - ±25% 50ALL Ungapped - - - - Uncoated - - - 1.755" (44.58mm) 3.197" (81.20mm) 0.622" (15.80mm)
7099 81-45-16-0000

7099 81-45-16-0000

UR 81

Ferrite International

1,800
7099 81-45-16-0000

Datasheet

- Bulk Active UR - - - ±25% 7099 Ungapped - - - - Uncoated - - - 1.755" (44.58mm) 3.197" (81.20mm) 0.622" (15.80mm)
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