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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
E42/21/15-3F36-G500

E42/21/15-3F36-G500

FERRITE CORE E 3F36

Ferroxcube

1,899
E42/21/15-3F36-G500

Datasheet

- Bulk Active E E 42 x 21 x 15 - - - 3F36 - - - - - Uncoated - - - 0.827" (21.00mm) 1.693" (43.00mm) 0.598" (15.20mm)
ER48/21/21-3C94

ER48/21/21-3C94

FERRITE CORE ER 3C94

Ferroxcube

4,566
ER48/21/21-3C94

Datasheet

- Bulk Active ER ER 48 x 21 x 21 - - - 3C94 - - - - - Uncoated - - - 0.835" (21.20mm) 1.890" (48.00mm) 0.827" (21.00mm)
ER54/18/18-3C94-G200

ER54/18/18-3C94-G200

FERRITE CORE ER 3C94

Ferroxcube

4,134
ER54/18/18-3C94-G200

Datasheet

- Bulk Active ER ER 54 x 18 x 18 - - - 3C94 - - - - - Uncoated - - - 0.720" (18.30mm) 2.106" (53.50mm) 0.707" (17.95mm)
ER48/21/21-3C90

ER48/21/21-3C90

Ferrite Misc

Ferroxcube

1,972
ER48/21/21-3C90

Datasheet

- Bulk Active ER ER 48 x 21 x 21 - - - 3C90 Ungapped 1900.0 - - - Uncoated - - - - - -
EP20-3C91

EP20-3C91

FERRITE CORE EP 3C91 2PC SET

Ferroxcube

4,460
EP20-3C91

Datasheet

- Bulk Active EP EP 20 - - ±25% 3C91 Ungapped 2040.0 - 0.52 41.1 Uncoated 78.7 3230.0 60.8 0.843" (21.40mm) 0.945" (24.00mm) 0.591" (15.00mm)
EP20-3C94

EP20-3C94

Ferrite Misc

Ferroxcube

3,384
EP20-3C94

Datasheet

- Bulk Active EP EP 20 - 4.435 µH ±25% 3C94 Ungapped 1840.0 - 0.52 41.1 Uncoated 78.7 3230.0 60.8 0.421" (10.40mm) 0.945" (24.00mm) 0.591" (15.00mm)
B65817J0000Y030

B65817J0000Y030

RM3 N30 1600 +40%

EPCOS - TDK Electronics

2,540
B65817J0000Y030

Datasheet

- Tape & Reel (TR) Active - - - - - - - - - - - - - - - - - -
ZF43615TC

ZF43615TC

TOROID GREY COATED

Magnetics, a division of Spang & Co.

1,548
ZF43615TC

Datasheet

- Bulk Active Toroid - 1.463" (37.15mm) 4.04 µH ±20% F Ungapped - 3000 - 89.6 Epoxy 93.3 8366.0 - 0.614" (15.60mm) - -
C058050A5

C058050A5

HIGH FLUX 125 PERM KHAKI 050 SIZ

Magnetics, a division of Spang & Co.

3,123
C058050A5

Datasheet

- Bulk Active Toroid - 0.530" (13.45mm) 56 nH ±8% High Flux Ungapped - 125 - 31.2 Coated 10.9 340.0 - 0.217" (5.51mm) - -
0058040AY

0058040AY

HIGH FLUX 125 PERM AY 040 SIZE

Magnetics, a division of Spang & Co.

1,971
0058040AY

Datasheet

- Bulk Active Toroid - 0.400" (10.15mm) 66 nH ±8% High Flux Ungapped - 125 - 23.0 Uncoated 9.57 220.0 - 0.156" (3.96mm) - -
B65982E0000D001

B65982E0000D001

SPULENKOERPER PQ50/50 PHENOLIC

EPCOS - TDK Electronics

3,484
B65982E0000D001

Datasheet

- Bulk Active - - - - - - - - - - - - - - - - - -
ETD44/22/15-3F3

ETD44/22/15-3F3

Ferrite Misc

Ferroxcube

2,508
ETD44/22/15-3F3

Datasheet

- Bulk Active ETD ETD 44 x 22 x 15 - 3.5 µH ±25% 3F3 Ungapped 1660.0 - - 103.0 Uncoated 173.0 17800.0 172.0 0.878" (22.30mm) 1.772" (45.00mm) 0.598" (15.20mm)
B65805P0000Y038

B65805P0000Y038

FERRITE CORE RM T38

EPCOS - TDK Electronics

1,091
B65805P0000Y038

Datasheet

RM5/LP Tape & Reel (TR) Active RM RM 5 - - -30%, +40% T38 Ungapped 4380.0 - 0.71 17.5 Uncoated 24.5 430.0 18.0 - 0.575" (14.60mm) 0.268" (6.80mm)
B65517D0000Y038

B65517D0000Y038

FERRITE CORE P 5.5UH T38 2PCS

EPCOS - TDK Electronics

4,931
B65517D0000Y038

Datasheet

P9/5 Box Active P (Pot Core) P 9 x 5 0.366" (9.30mm) 5.5 µH -30%, +40% T38 Ungapped 4930.0 10000 1.25 12.5 Uncoated 10.0 125.0 - 0.106" (2.70mm) - -
B65517W0000Y038

B65517W0000Y038

FERRITE CORE P 5.5UH T38 2PCS

EPCOS - TDK Electronics

4,381
B65517W0000Y038

Datasheet

P9/5 Box Active P (Pot Core) P 9 x 5 0.366" (9.30mm) 5.5 µH -30%, +40% T38 Ungapped 4930.0 10000 1.13 13.4 Uncoated 11.9 159.0 9.3 0.106" (2.70mm) - -
ER32/6/25-3C97

ER32/6/25-3C97

FERRITE CORE ER 3C97

Ferroxcube

2,114
ER32/6/25-3C97

Datasheet

- Bulk Active ER ER 32 x 6 x 25 - - - 3C97 - - - - - Uncoated - - - 0.236" (6.00mm) 1.264" (32.10mm) 1.000" (25.40mm)
ER32/6/25-3F36

ER32/6/25-3F36

FERRITE CORE ER 3F36

Ferroxcube

4,428
ER32/6/25-3F36

Datasheet

- Bulk Active ER ER 32 x 6 x 25 - - - 3F36 - - - - - Uncoated - - - 0.236" (6.00mm) 1.264" (32.10mm) 1.000" (25.40mm)
PTS23/11-3F3

PTS23/11-3F3

Ferrite Misc

Ferroxcube

2,798
PTS23/11-3F3

Datasheet

- Bulk Active P PTS 23 x 11 0.902" (22.90mm) 3.28 µH ±25% 3F3 Ungapped 1510.0 - 0.55 31.6 Uncoated 57.2 1810.0 53.6 0.217" (5.51mm) - -
ER32/6/25-3F3

ER32/6/25-3F3

Ferrite Misc

Ferroxcube

3,705
ER32/6/25-3F3

Datasheet

- Bulk Active ER ER 32 x 6 x 25 - - ±25% 3F3 Ungapped 1540.0 - 0.27 38.2 Uncoated 141.0 5400.0 121.0 0.236" (6.00mm) 1.264" (32.10mm) 1.000" (25.40mm)
B64290A0774X065

B64290A0774X065

R31.5/19/12.5 T65 RINGKERN

EPCOS - TDK Electronics

1,131
B64290A0774X065

Datasheet

- Tray Active - - - - - - - - - - - - - - - - - -
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