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
B65815E0000R049

B65815E0000R049

FERRITE CORE RM 3.7UH N49 2PCS

EPCOS - TDK Electronics

926
B65815E0000R049

Datasheet

RM12 Box Active RM RM 12 - 3.7 µH -20%, +30% N49 Ungapped 1150.0 1500 0.39 57.0 Uncoated 146.0 8320.0 125.0 0.484" (12.30mm) 1.480" (37.60mm) 0.634" (16.10mm)
B64290L0659X830

B64290L0659X830

FERRITE CORE TOROID 7UH N30

EPCOS - TDK Electronics

101
B64290L0659X830

Datasheet

TX40/24/16 Tray Active Toroid - 1.646" (41.80mm) 7 µH ±25% N30 Ungapped - 4300 0.77 96.29 Epoxy 125.3 12070.0 125.3 0.677" (17.20mm) - -
E80/38/20-3C92

E80/38/20-3C92

FERRITE CORE E 3C92

Ferroxcube

134
E80/38/20-3C92

Datasheet

- Bulk Active E E 80 x 38 x 20 - - - 3C92 - - - - - Uncoated - - - 1.500" (38.10mm) 3.150" (80.00mm) 0.780" (19.80mm)
TX42/26/18-3E27-M7

TX42/26/18-3E27-M7

FERRITE CORE TOROID 3E+27

Ferroxcube

102
TX42/26/18-3E27-M7

Datasheet

- Bulk Active Toroid TX 42 x 26 x 18 1.697" (43.15mm) - ±25% 3E27 Ungapped 7000.0 - 0.769 103.0 Epoxy 134.0 13810.0 - 0.736" (18.70mm) - -
ETD59/31/22-3C94

ETD59/31/22-3C94

FERRITE CORE ETD 3C94

Ferroxcube

357
ETD59/31/22-3C94

Datasheet

- Bulk Active ETD ETD 59 x 31 x 22 - - - 3C94 - - - - - Uncoated - - - 1.220" (31.00mm) 2.354" (59.80mm) 0.852" (21.65mm)
TX40/24/16-3C94

TX40/24/16-3C94

FERRITE CORE TOROID 3C94

Ferroxcube

307
TX40/24/16-3C94

Datasheet

- Bulk Active Toroid TX 40 x 24 x 16 1.640" (41.65mm) - ±25% 3C94 Ungapped 2300.0 - 0.769 96.3 Epoxy 125.0 12100.0 - 0.673" (17.10mm) - -
PQ40/30-3F36

PQ40/30-3F36

FERRITE CORE PQ 3F36 2PC SET

Ferroxcube

227
PQ40/30-3F36

Datasheet

- Bulk Active PQ PQ 40 x 30 - - - 3F36 - - - - - Uncoated - - - 1.181" (30.00mm) 1.634" (41.50mm) 1.102" (28.00mm)
TX40/24/16-3C90

TX40/24/16-3C90

FERRITE CORE TOROID 3C90

Ferroxcube

186
TX40/24/16-3C90

Datasheet

- Bulk Active Toroid TX 40 x 24 x 16 1.640" (41.65mm) - - 3C90 - - - - - Epoxy - - - 0.673" (17.10mm) - -
B65671W0000Y038

B65671W0000Y038

FERRITE CORE P 22UH T38 2PCS

EPCOS - TDK Electronics

757
B65671W0000Y038

Datasheet

P26/16 Box Active P (Pot Core) P 26 x 16 1.024" (26.00mm) 22 µH -30%, +40% T38 Ungapped 6480.0 10000 0.37 40.0 Uncoated 108.0 4320.0 87.0 0.321" (8.15mm) - -
B66387Q0400K187

B66387Q0400K187

FERRITE CORE E 400NH N87

EPCOS - TDK Electronics

230
B66387Q0400K187

Datasheet

E65/32/27 Bulk Active E E 65 x 32 x 27 - 400 nH ±10% N87 Distributed Gapped - 2200 0.27 147.0 Uncoated 535.0 78600.0 529.0 1.291" (32.80mm) 2.559" (65.00mm) 1.079" (27.40mm)
B66343G0000X127

B66343G0000X127

FERRITE CORE EC N27 1PC

EPCOS - TDK Electronics

164
B66343G0000X127

Datasheet

EC70/35/16 Box Active EC EC 70 x 35 x 16 - - - N27 Ungapped - - - - Uncoated - - - 1.364" (34.65mm) 2.756" (70.00mm) 0.661" (16.80mm)
E58/11/38-3F4

E58/11/38-3F4

FERRITE CORE E 3F4

Ferroxcube

343
E58/11/38-3F4

Datasheet

- Bulk Active E E 58 x 11 x 38 - - - 3F4 - - - - - Uncoated - - - 0.413" (10.50mm) 2.299" (58.40mm) 1.500" (38.10mm)
B66395G0500X187

B66395G0500X187

FERRITE CORE ETD N87

EPCOS - TDK Electronics

319
B66395G0500X187

Datasheet

ETD54/28/19 Box Active ETD ETD 54 x 28 x 19 - - - N87 Gapped - 2200 0.45 127.0 Uncoated 280.0 35600.0 280.0 1.094" (27.80mm) 2.156" (54.50mm) 0.760" (19.30mm)
LRF251515MKCX

LRF251515MKCX

FERRITE CORE TOROID 38.1UH

Chemi-Con

208
LRF251515MKCX

Datasheet

FL-V Bulk Active Toroid - 1.114" (28.30mm) 38.1 µH - Nanocrystalline Ungapped - - - - Uncoated 63.0 - - - 2.512" (63.80mm) 0.689" (17.50mm)
PQ35/30-3C95

PQ35/30-3C95

FERRITE CORE PQ 3C95 2PC SET

Ferroxcube

361
PQ35/30-3C95

Datasheet

- Bulk Active PQ PQ 35 x 30 - - - 3C95 - - - - - Uncoated - - - 1.181" (30.00mm) 1.421" (36.10mm) 1.024" (26.00mm)
B65877B0000R095

B65877B0000R095

FERRITE CORE PQ 6.3UH N95 2PCS

EPCOS - TDK Electronics

652
B65877B0000R095

Datasheet

PQ26/20 Box Active PQ PQ 26 x 20 - 6.3 µH -20%, +30% N95 Ungapped 1820.0 2000 0.363 44.4 Uncoated 122.3 5435.0 108.8 0.397" (10.08mm) 1.043" (26.50mm) 0.748" (19.00mm)
B65701T0250G048

B65701T0250G048

FERRITE CORE N48

EPCOS - TDK Electronics

370
B65701T0250G048

Datasheet

P30/19 Box Active - P 30 x 19 1.200" (30.50mm) - - N48 Gapped - 2300 0.33 45.0 Uncoated 136.0 6120.0 - 0.374" (9.50mm) - -
B64290L0022X097

B64290L0022X097

FERRITE CORE TOROID N97

EPCOS - TDK Electronics

674
B64290L0022X097

Datasheet

TX42/26/13 Box Active Toroid - - - - N97 Gapped - 2300 - - Epoxy - - - - - -
B66387G0000X127

B66387G0000X127

FERRITE CORE E N27 1PC

EPCOS - TDK Electronics

156
B66387G0000X127

Datasheet

E65/32/27 Box Active E E 65 x 32 x 27 - - - N27 Ungapped - - - - Uncoated - - - 1.291" (32.80mm) 2.559" (65.00mm) 1.079" (27.40mm)
B64290L0659X037

B64290L0659X037

FERRITE CORE TOROID 9.8UH T37

EPCOS - TDK Electronics

248
B64290L0659X037

Datasheet

TX40/24/16 Box Active Toroid - 1.646" (41.80mm) 9.8 µH ±25% T37 Ungapped - 6000 0.77 96.29 Epoxy 125.3 12070.0 125.3 0.677" (17.20mm) - -
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