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
B65541T0250A048

B65541T0250A048

FERRITE CORE P 250NH N48 2PCS

EPCOS - TDK Electronics

978
B65541T0250A048

Datasheet

P14/8 Box Active P (Pot Core) P 14 x 8 0.563" (14.30mm) 250 nH ±3% N48 Gapped 159.0 - 0.8 20.0 Uncoated 25.0 500.0 20.0 0.167" (4.25mm) - -
B65541T0400A048

B65541T0400A048

FERRITE CORE P 400NH N48 2PCS

EPCOS - TDK Electronics

854
B65541T0400A048

Datasheet

P14/8 Box Active P (Pot Core) P 14 x 8 0.563" (14.30mm) 400 nH ±3% N48 Gapped 255.0 - 0.8 20.0 Uncoated 25.0 500.0 20.0 0.167" (4.25mm) - -
B65807N0160G048

B65807N0160G048

FERRITE CORE RM N48 2PCS

EPCOS - TDK Electronics

1,130
B65807N0160G048

Datasheet

RM6 Box Active RM RM 6 - - - N48 Gapped - - 0.86 26.9 Uncoated 31.3 840.0 - 0.246" (6.25mm) 0.701" (17.90mm) 0.323" (8.20mm)
PQ26/25-3C96

PQ26/25-3C96

FERRITE CORE PQ 3C96 2PC SET

Ferroxcube

524
PQ26/25-3C96

Datasheet

- Bulk Active PQ PQ 26 x 25 - - ±25% 3C96 Ungapped 1690.0 - 0.451 54.3 Uncoated 120.0 6530.0 108.0 0.972" (24.70mm) 1.075" (27.30mm) 0.748" (19.00mm)
B65811J0250J041

B65811J0250J041

FERRITE CORE RM 250NH N41 2PCS

EPCOS - TDK Electronics

278
B65811J0250J041

Datasheet

RM8 Box Active RM RM 8 - 250 nH ±5% N41 Gapped 118.0 2800 0.59 38.0 Uncoated 64.0 2430.0 55.0 0.324" (8.25mm) 0.913" (23.20mm) 0.433" (11.00mm)
B65541T0100A033

B65541T0100A033

FERRITE CORE P 100NH M33 2PCS

EPCOS - TDK Electronics

4,838
B65541T0100A033

Datasheet

P14/8 Box Active P (Pot Core) P 14 x 8 0.563" (14.30mm) 100 nH ±3% M33 Gapped 64.0 750 0.8 20.0 Uncoated 25.0 500.0 20.0 0.167" (4.25mm) - -
5961001221

5961001221

FERRITE CORE TOROID 145NH 61

Fair-Rite Products Corp.

161
5961001221

Datasheet

- Box Active Toroid - 1.187" (30.15mm) 145 nH ±25% 61 Ungapped - 125 1.07 73.0 Plastic 68.0 5000.0 - 0.576" (14.64mm) - -
B65811J1600K041

B65811J1600K041

FERRITE CORE RM 1.6UH N41 2PCS

EPCOS - TDK Electronics

800
B65811J1600K041

Datasheet

RM8 Box Active RM RM 8 - 1.6 µH ±10% N41 Gapped 756.0 2800 0.59 38.0 Uncoated 64.0 2430.0 55.0 0.324" (8.25mm) 0.913" (23.20mm) 0.433" (11.00mm)
TX20/10/7-4C65

TX20/10/7-4C65

FERRITE CORE TOROID 4C65

Ferroxcube

124
TX20/10/7-4C65

Datasheet

- Bulk Active Toroid TX 20 x 10 x 7 0.797" (20.25mm) - ±30% 4C65 Ungapped - - 1.3 43.6 Epoxy 33.6 1465.0 - 0.291" (7.40mm) - -
ER41/7.6/32-3C92

ER41/7.6/32-3C92

FERRITE CORE ER 3C92

Ferroxcube

263
ER41/7.6/32-3C92

Datasheet

- Bulk Active ER ER 41 x 7.6 x 32 - - - 3C92 - - - - - Uncoated - - - 0.300" (7.60mm) 1.600" (40.64mm) 1.260" (32.00mm)
B64290L0048X830

B64290L0048X830

FERRITE CORE TOROID 5.46UH N30

EPCOS - TDK Electronics

1,138
B64290L0048X830

Datasheet

TX34/20.5/12.5 Tray Active Toroid - 1.397" (35.50mm) 5.46 µH ±25% N30 Ungapped - 4300 0.99 82.06 Epoxy 82.6 6778.0 - 0.535" (13.60mm) - -
B66329G1500X187

B66329G1500X187

FERRITE CORE E N87

EPCOS - TDK Electronics

249
B66329G1500X187

Datasheet

E42/21/20 Box Active E E 42 x 21 x 20 - - - N87 Gapped - 2200 0.41 97.0 Uncoated 234.0 22700.0 229.0 0.835" (21.20mm) 1.654" (42.00mm) 0.787" (20.00mm)
B66329G0500X187

B66329G0500X187

FERRITE CORE E N87

EPCOS - TDK Electronics

566
B66329G0500X187

Datasheet

E42/21/20 Box Active E E 42 x 21 x 20 - - - N87 Gapped - 2200 0.41 97.0 Uncoated 234.0 22700.0 229.0 0.835" (21.20mm) 1.654" (42.00mm) 0.787" (20.00mm)
B64290L0616X087

B64290L0616X087

FERRITE CORE TOROID 4.68UH N87

EPCOS - TDK Electronics

291
B64290L0616X087

Datasheet

TX25.3/14.8/20 Box Active Toroid - 1.047" (26.60mm) 4.68 µH ±25% N87 Ungapped - 2200 0.59 60.07 Epoxy 102.5 6157.0 - 0.839" (21.30mm) - -
B64290L0048X087

B64290L0048X087

FERRITE CORE TOROID 2.79UH N87

EPCOS - TDK Electronics

1,175
B64290L0048X087

Datasheet

TX34/20.5/12.5 Box Active Toroid - 1.397" (35.50mm) 2.79 µH ±25% N87 Ungapped - 2200 0.99 82.06 Epoxy 82.6 6778.0 - 0.535" (13.60mm) - -
B65811P0000R087

B65811P0000R087

FERRITE CORE RM 4.1UH N87 2PCS

EPCOS - TDK Electronics

398
B65811P0000R087

Datasheet

RM8/LP Tray Active RM RM 8 LP - 4.1 µH -20%, +30% N87 Ungapped 1440.0 2200 0.44 28.7 Uncoated 64.9 1860.0 55.4 0.228" (5.80mm) 0.913" (23.20mm) 0.433" (11.00mm)
E55/28/21-3C92

E55/28/21-3C92

FERRITE CORE E 3C92

Ferroxcube

184
E55/28/21-3C92

Datasheet

- Bulk Active E E 55 x 28 x 21 - - - 3C92 - - - - - Uncoated - - - 1.083" (27.50mm) 2.213" (56.20mm) 0.827" (21.00mm)
0077076A7

0077076A7

FERRITE CORE TOROID 56NH KOOL MU

Magnetics, a division of Spang & Co.

2,098
0077076A7

Datasheet

- Bulk Active Toroid - 1.445" (36.70mm) 56 nH ±8% Kool Mu Ungapped - 60 - 89.8 Coated 67.8 6090.0 - 0.447" (11.35mm) - -
B65661W0000R030

B65661W0000R030

FERRITE CORE P 8.3UH N30 2PCS

EPCOS - TDK Electronics

608
B65661W0000R030

Datasheet

P22/13 Box Active P (Pot Core) P 22 x 13 0.866" (22.00mm) 8.3 µH -20%, +30% N30 Ungapped 3020.0 4300 0.46 33.2 Uncoated 72.6 2410.0 58.1 0.268" (6.80mm) - -
B66365G0500X187

B66365G0500X187

FERRITE CORE ETD N87 1PC

EPCOS - TDK Electronics

445
B66365G0500X187

Datasheet

ETD44/22/15 Box Active ETD ETD 44 x 22 x 15 - - - N87 Gapped - - - - Uncoated - - - 0.886" (22.50mm) 1.724" (43.80mm) 0.598" (15.20mm)
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