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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
E65/32/27-3C95

E65/32/27-3C95

FERRITE CORE E 3C95

Ferroxcube

3,109
E65/32/27-3C95

Datasheet

- Bulk Active E E 65 x 32 x 27 - - - 3C95 - - - - - Uncoated - - - 1.291" (32.80mm) 2.559" (65.00mm) 1.079" (27.40mm)
B64290L0040X830

B64290L0040X830

FERRITE CORE TOROID 5.4UH N30

EPCOS - TDK Electronics

4,912
B64290L0040X830

Datasheet

TX58.3/40.8/17.6 Tray Active Toroid - 2.366" (60.10mm) 5.4 µH ±25% N30 Ungapped - 4300 1.0 152.4 Epoxy 152.4 23230.0 - 0.740" (18.80mm) - -
UR55/38/36-3C90

UR55/38/36-3C90

FERRITE CORE UR 3C90

Ferroxcube

4,114
UR55/38/36-3C90

Datasheet

- Bulk Active UR UR 55 x 38 x 36 - - - 3C90 - - - - - Uncoated - - - 1.476" (37.50mm) 2.161" (54.90mm) 0.925" (23.50mm)
TX55/32/18-3E27

TX55/32/18-3E27

FERRITE CORE TOROID 3E+27

Ferroxcube

1,019
TX55/32/18-3E27

Datasheet

- Bulk Active Toroid TX 55 x 32 x 18 2.264" (57.50mm) - - 3E27 - - - - - Epoxy - - - 0.756" (19.20mm) - -
B66297G0000X187

B66297G0000X187

FERRITE CORE ELP N87

EPCOS - TDK Electronics

1,193
B66297G0000X187

Datasheet

ELP102/20/38 Tray Active ELP ELP 102 x 20 x 38 - - ±25% N87 Ungapped - - - - Uncoated - - - 0.799" (20.30mm) 4.016" (102.00mm) 1.476" (37.50mm)
TX63/38/25-3E6

TX63/38/25-3E6

FERRITE CORE TOROID

Ferroxcube

2,707
TX63/38/25-3E6

Datasheet

- Bulk Active Toroid - 2.480" (63.00mm) - - - - - - - - Epoxy - - - 0.984" (25.00mm) - -
C058438A2

C058438A2

FERRITE CORE TOROID 281NH HI FLX

Magnetics, a division of Spang & Co.

3,418
C058438A2

Datasheet

- Bulk Active Toroid - 1.875" (47.63mm) 281 nH ±8% High Flux Ungapped - 125 - 107.0 Coated 199.0 21300.0 - 0.745" (18.92mm) - -
U126/91/20-3C94

U126/91/20-3C94

FERRITE CORE U 3C94

Ferroxcube

2,892
U126/91/20-3C94

Datasheet

- Bulk Active U U 126 x 91 x 20 - - - 3C94 - - - - - Uncoated - - - 3.583" (91.00mm) 4.961" (126.00mm) 0.787" (20.00mm)
PM74/59-3C94

PM74/59-3C94

FERRITE CORE PM 3C94 2PC SET

Ferroxcube

2,884
PM74/59-3C94

Datasheet

- Bulk Active PM PM 74 x 59 2.913" (74.00mm) - - 3C94 - - - - - Uncoated - - - 2.323" (59.00mm) - -
B65686A0000R087

B65686A0000R087

FERRITE CORE PM 10UH N87 2PCS

EPCOS - TDK Electronics

4,266
B65686A0000R087

Datasheet

PM74/59 Box Active PM PM 74 x 59 2.913" (74.00mm) 10 µH -20%, +30% N87 Ungapped 1290.0 2200 0.162 128.0 Uncoated 790.0 101000.0 630.0 1.161" (29.50mm) - -
5977000101

5977000101

FERRITE CORE TOROID 77

Fair-Rite Products Corp.

468
5977000101

Datasheet

- Box Active Toroid - 0.230" (5.84mm) - ±25% 77 Ungapped - 2000 - 13.0 Uncoated 2.0 27.0 - 0.060" (1.52mm) - -
5967000101

5967000101

FERRITE CORE TOROID 67

Fair-Rite Products Corp.

864
5967000101

Datasheet

- Box Active Toroid - 0.230" (5.84mm) - - 67 Ungapped - 40 - 13.0 Uncoated 2.0 27.0 - 0.060" (1.52mm) - -
B64290A0035X038

B64290A0035X038

FERRITE CORE TOROID 1.02UH T38

EPCOS - TDK Electronics

481
B64290A0035X038

Datasheet

T2.5/1.5/1 Box Active Toroid R 2.5 x 1.5 x 1 0.098" (2.50mm) 1.02 µH ±30% T38 Ungapped - 10000 12.3 6.02 Uncoated 0.49 3.0 - 0.039" (1.00mm) - -
5980000201

5980000201

FERRITE CORE TOROID 245NH

Fair-Rite Products Corp.

982
5980000201

Datasheet

HF Bulk Active Toroid - 0.374" (9.50mm) 245 nH ±25% - Ungapped - 550 286.0 20.7 Uncoated 7.3 150.0 - 0.125" (3.18mm) - -
5975000221

5975000221

FERRITE CORE TOROID 2.2UH 75

Fair-Rite Products Corp.

308
5975000221

Datasheet

- Bulk Active Toroid - 0.402" (10.20mm) 2.2 µH ±20% 75 Ungapped - 5000 2.8549 20.7 Plastic 7.25 150.0 - 0.150" (3.81mm) - -
4077122011

4077122011

FERRITE CORE ROD 77

Fair-Rite Products Corp.

331
4077122011

Datasheet

- Bulk Active ROD - 0.128" (3.25mm) - - 77 Ungapped 29.0 2000 - 25.0 Uncoated 7.07 - - - 1.000" (25.40mm) -
5943000321

5943000321

FERRITE CORE TOROID 440NH 43

Fair-Rite Products Corp.

596
5943000321

Datasheet

- Box Active Toroid - 0.530" (13.45mm) 440 nH -25%, +20% 43 Ungapped - 800 2.2904 29.5 Plastic 12.9 381.0 - 0.213" (5.40mm) - -
B64290L0045X027

B64290L0045X027

FERRITE CORE TOROID 1.29UH N27

EPCOS - TDK Electronics

486
B64290L0045X027

Datasheet

TX16/9.6/6.3 Box Active Toroid - 0.677" (17.20mm) 1.29 µH ±25% N27 Ungapped - 2000 1.95 38.52 Epoxy 19.73 760.0 - 0.287" (7.30mm) - -
TX13/7.9/6.4-3C90

TX13/7.9/6.4-3C90

FERRITE CORE TOROID 3C90

Ferroxcube

667
TX13/7.9/6.4-3C90

Datasheet

- Bulk Active Toroid TX 13 x 7.9 x 6.4 0.526" (13.35mm) - - 3C90 - - - - - Epoxy - - - 0.275" (7.00mm) - -
B66317G0250X187

B66317G0250X187

FERRITE CORE E N87 1PC

EPCOS - TDK Electronics

233
B66317G0250X187

Datasheet

E25/13/7 Box Active E E 25 x 13 x 7 - - - N87 Gapped - - - - Uncoated - - - 0.504" (12.80mm) 0.984" (25.00mm) 0.295" (7.50mm)
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