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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
5961000111

5961000111

FERRITE CORE TOROID 25NH 61

Fair-Rite Products Corp.

11,399
5961000111

Datasheet

- Bag Active Toroid - 0.236" (6.00mm) 25 nH ±25% 61 Ungapped - 125 6.37 13.0 Parylene 2.0 27.0 - 0.067" (1.70mm) - -
B64290L0038X087

B64290L0038X087

FERRITE CORE TOROID 900NH N87

EPCOS - TDK Electronics

1,015
B64290L0038X087

Datasheet

TX10/6/4 Bulk Active Toroid - 0.425" (10.80mm) 900 nH ±25% N87 Ungapped - 2200 3.07 24.07 Epoxy 7.83 188.0 - 0.187" (4.75mm) - -
E13/7/4-3C94

E13/7/4-3C94

FERRITE CORE E 3C94

Ferroxcube

5,969
E13/7/4-3C94

Datasheet

- Bulk Active E E 13 x 7 x 4 - - - 3C94 - - - - - Uncoated - - - 0.256" (6.50mm) 0.496" (12.60mm) 0.146" (3.70mm)
YW40301TC

YW40301TC

TOROID-PARYLENE COATED

Magnetics, a division of Spang & Co.

92,302
YW40301TC

Datasheet

- Bulk Active Toroid - 0.149" (3.79mm) 1.65 µH ±30% W Ungapped - 10000 - 7.65 Parylene 1.03 7.87 - 0.060" (1.52mm) - -
B64290L0038X830

B64290L0038X830

FERRITE CORE TOROID 1.76UH N30

EPCOS - TDK Electronics

6,762
B64290L0038X830

Datasheet

TX10/6/4 Bulk Active Toroid - 0.425" (10.80mm) 1.76 µH ±25% N30 Ungapped - 4300 3.07 24.07 Epoxy 7.83 188.0 - 0.187" (4.75mm) - -
E16/8/5-3C94

E16/8/5-3C94

FERRITE CORE E 3C94

Ferroxcube

9,439
E16/8/5-3C94

Datasheet

- Bulk Active E E 16 x 8 x 5 - - - 3C94 - - - - - Uncoated - - - 0.323" (8.20mm) 0.630" (16.00mm) 0.185" (4.70mm)
3067990851

3067990851

FERRITE CORE ROD 67

Fair-Rite Products Corp.

4,541
3067990851

Datasheet

- Box Active ROD - 0.079" (2.00mm) - - 67 Ungapped 18.0 40 - - Uncoated 3.14 - - - 0.591" (15.00mm) -
3061990851

3061990851

FERRITE CORE ROD 61

Fair-Rite Products Corp.

1,395
3061990851

Datasheet

- Box Active ROD - 0.079" (2.00mm) - - 61 Ungapped 25.0 125 - - Uncoated 3.14 - - - 0.591" (15.00mm) -
B64290P0036X038

B64290P0036X038

FERRITE CORE TOROID 1.63UH T38

EPCOS - TDK Electronics

34,948
B64290P0036X038

Datasheet

TC4.0/2.4/1.6 Box Active Toroid - 0.158" (4.02mm) 1.63 µH ±30% T38 Ungapped - 10000 7.7 9.63 Parylene 1.25 12.0 - 0.064" (1.62mm) - -
B64290L0044X049

B64290L0044X049

FERRITE CORE TOROID 660NH N49

EPCOS - TDK Electronics

9,511
B64290L0044X049

Datasheet

TX12.5/7.5/5 Box Active Toroid - 0.535" (13.60mm) 660 nH ±25% N49 Ungapped - 1300 2.46 30.09 Epoxy 12.23 368.0 - 0.234" (5.95mm) - -
B64290L0763X087

B64290L0763X087

FERRITE CORE TOROID N87

EPCOS - TDK Electronics

20,000
B64290L0763X087

Datasheet

TX10/6/3 Box Active Toroid - - - - N87 Gapped - 2200 - - Epoxy - - - - - -
YW40503TC

YW40503TC

TOROID-PARYLENE COATED

Magnetics, a division of Spang & Co.

6,115
YW40503TC

Datasheet

- Bulk Active Toroid - 0.166" (4.22mm) 2.95 µH ±30% W Ungapped - 10000 - 9.21 Parylene 2.1 19.3 - 0.113" (2.87mm) - -
B66305G0000X127

B66305G0000X127

FERRITE CORE E N27 1PC

EPCOS - TDK Electronics

16,917
B66305G0000X127

Datasheet

E13/7/4 Box Active E E 13 x 7 x 4 - - - N27 Ungapped - - - - Uncoated - - - 0.256" (6.50mm) 0.496" (12.60mm) 0.146" (3.70mm)
5943000221

5943000221

FERRITE CORE TOROID 350NH 43

Fair-Rite Products Corp.

11,834
5943000221

Datasheet

- Box Active Toroid - 0.402" (10.20mm) 350 nH -25%, +20% 43 Ungapped - 800 2.8549 20.7 Plastic 7.25 150.0 - 0.150" (3.81mm) - -
B64290L0044X830

B64290L0044X830

FERRITE CORE TOROID 2.2UH N30

EPCOS - TDK Electronics

3,215
B64290L0044X830

Datasheet

TX12.5/7.5/5 Bulk Active Toroid - 0.535" (13.60mm) 2.2 µH ±25% N30 Ungapped - 4300 2.46 30.09 Epoxy 12.23 368.0 - 0.234" (5.95mm) - -
B64290L0044X087

B64290L0044X087

FERRITE CORE TOROID 1.12UH N87

EPCOS - TDK Electronics

4,647
B64290L0044X087

Datasheet

TX12.5/7.5/5 Box Active Toroid - 0.535" (13.60mm) 1.12 µH ±25% N87 Ungapped - 2200 2.46 30.09 Epoxy 12.23 368.0 - 0.234" (5.95mm) - -
B64290A0038X038

B64290A0038X038

FERRITE CORE TOROID 4.09UH T38

EPCOS - TDK Electronics

4,575
B64290A0038X038

Datasheet

T10/6/4 Box Active Toroid R 10 x 6 x 4 0.394" (10.00mm) 4.09 µH ±30% T38 Ungapped - 10000 3.07 24.07 Uncoated 7.83 188.0 - 0.157" (4.00mm) - -
5976000201

5976000201

FERRITE CORE TOROID 76

Fair-Rite Products Corp.

2,251
5976000201

Datasheet

- Bulk Active Toroid - 0.375" (9.53mm) - ±30% 76 Ungapped - 10000 - 20.7 Uncoated 7.2 150.0 - 0.125" (3.18mm) - -
B66307G0000X127

B66307G0000X127

FERRITE CORE E N27 1PC

EPCOS - TDK Electronics

6,547
B66307G0000X127

Datasheet

E16/8/5 Box Active E E 16 x 8 x 5 - - - N27 Ungapped - - - - Uncoated - - - 0.323" (8.20mm) 0.630" (16.00mm) 0.185" (4.70mm)
B64290L0644X830

B64290L0644X830

FERRITE CORE TOROID 2.03UH N30

EPCOS - TDK Electronics

3,874
B64290L0644X830

Datasheet

TX13.3/8.3/5 Box Active Toroid - 0.567" (14.40mm) 2.03 µH ±25% N30 Ungapped - 4300 2.67 32.7 Epoxy 12.27 401.0 - 0.234" (5.95mm) - -
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