Ferrite Cores
Ferrite cores are a magnetic device used in the windings of transformers or other wound components. The chemical makeup of these devices help to prevent eddy currents. These are created in different form factors such as: E, toroid, ER, multi-hole, etc. and come in many different sizes. Key parameters are going to be the size, form factor or core type, and inductance factor.
Sourcing EPCOS (TDK) Ferrite Cores: in-stock lines for quick ship, BOM matching for multi-line builds, and original-channel screening — not keyword stuffing.
Product List
Total Components: 48
| Product | Pricing | Datasheet | Core Type | Material | Diameter | Inductance Factor (Al) | Tolerance | Gap | Effective Permeability (µe) | Initial Permeability (µi) | Core Factor (ΣI/A) mm<sup>-1</sup> | Effective Length (le) mm | Effective Area (Ae) mm² | Minimum Core Cross Section (Amin) mm² | Effective Magnetic Volume (Ve) mm³ | Finish | Height | Length | Width | Supplier Device Package | Stock & Quantity |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 B66421G0000X187 EPCOS (TDK) | 1 $1.4500 | EFD | N87 | - | - | - | Ungapped | - | - | - | - | - | - | - | Uncoated | 0.492" (12.50mm) | 0.984" (25.00mm) | 0.358" (9.10mm) | EFD 25 x 13 x 9 | 5,519 | |
 B62152A0007X001 EPCOS (TDK) | 1 $1.5300 | Multi-Hole (2) | K1 | - | 140 nH | ±30% | Ungapped | - | 80 | 0.75 | 7.6 | 10.2 | - | 78 | Uncoated | 0.244" (6.20mm) | 0.285" (7.25mm) | 0.165" (4.20mm) | - | 6,174 | |
 B65517D0250J048 EPCOS (TDK) | 1 $2.2800 | P (Pot Core) | N48 | 0.366" (9.30mm) | 250 nH | ±5% | Gapped | 249 | - | 1.25 | 12.5 | 10 | - | 125 | Uncoated | 0.106" (2.70mm) | - | - | P 9 x 5 | 1,287 | |
 B66365G0000X187 EPCOS (TDK) | 1 $3.5300 | ETD | N87 | - | - | - | Ungapped | - | - | - | - | - | - | - | Uncoated | 0.886" (22.50mm) | 1.724" (43.80mm) | 0.598" (15.20mm) | ETD 44 x 22 x 15 | 6,052 | |
 B64290L0058X830 EPCOS (TDK) | 1 $3.7700 | Toroid | N30 | 1.397" (35.50mm) | 4.36 µH | ±25% | Ungapped | - | 4300 | 1.24 | 82.06 | 66.08 | - | 5423 | Epoxy | 0.437" (11.10mm) | - | - | - | 4,410 | |
 B66397G0000X187 EPCOS (TDK) | 1 $11.6400 | ETD | N87 | - | - | - | Ungapped | - | - | - | - | - | - | - | Uncoated | 1.228" (31.20mm) | 2.354" (59.80mm) | 0.870" (22.10mm) | ETD 59 x 31 x 22 | 7,128 | |
 B65887E0000R087 EPCOS (TDK) | 1 $11.9700 | RM | N87 | - | 6 µH | -20%, +30% | Ungapped | 1670 | 2200 | 0.35 | 70 | 200 | 170 | 14000 | Uncoated | 0.594" (15.10mm) | 1.661" (42.20mm) | 0.748" (19.00mm) | RM 14 | 7,727 | |
 B64290L0040X065 EPCOS (TDK) | 1 $14.5500 | Toroid | T65 | 2.366" (60.10mm) | 6.25 µH | ±30% | Ungapped | - | 5000 | 1 | 152.4 | 152.4 | - | 23230 | Epoxy | 0.740" (18.80mm) | - | - | - | 1,606 | |
 B66295G0000X187 EPCOS (TDK) | 1 $15.4300 | ELP | N87 | - | - | - | Ungapped | - | - | - | - | - | - | - | Uncoated | 0.402" (10.20mm) | 2.520" (64.00mm) | 2.000" (50.80mm) | ELP 64 x 10 x50 | 6,817 | |
 B65684A0000R087 EPCOS (TDK) | 1 $35.0300 | PM | N87 | 2.441" (62.00mm) | 9.2 µH | -20%, +30% | Ungapped | 1400 | 2200 | 0.191 | 109 | 570 | 470 | 62000 | Uncoated | 0.965" (24.50mm) | - | - | PM 62 x 49 | 2,580 | |
 B64290L0084X830 EPCOS (TDK) | 1 $57.6800 | Toroid | N30 | 4.126" (104.80mm) | 5.5 µH | ±25% | Ungapped | - | 4200 | 0.96 | 255.3 | 267.2 | - | 68220 | Epoxy | 0.650" (16.50mm) | - | - | - | 9,950 | |
 B64290L0038X087 EPCOS (TDK) | 1 $0.3300 | Toroid | N87 | 0.425" (10.80mm) | 900 nH | ±25% | Ungapped | - | 2200 | 3.07 | 24.07 | 7.83 | - | 188 | Epoxy | 0.187" (4.75mm) | - | - | - | 6,176 | |
 B64290P0036X830 EPCOS (TDK) | 1 $0.3300 | Toroid | N30 | 0.158" (4.02mm) | 700 nH | ±25% | Ungapped | - | 4300 | 7.7 | 9.63 | 1.25 | - | 12 | Parylene | 0.064" (1.62mm) | - | - | - | 7,843 | |
 B64290L0038X830 EPCOS (TDK) | 1 $0.3700 | Toroid | N30 | 0.425" (10.80mm) | 1.76 µH | ±25% | Ungapped | - | 4300 | 3.07 | 24.07 | 7.83 | - | 188 | Epoxy | 0.187" (4.75mm) | - | - | - | 1,899 | |
B64290P0036X038 EPCOS (TDK) | 1 $0.4100 | Toroid | T38 | 0.158" (4.02mm) | 1.63 µH | ±30% | Ungapped | - | 10000 | 7.7 | 9.63 | 1.25 | - | 12 | Parylene | 0.064" (1.62mm) | - | - | - | 3,439 | |
 B64290L0038X038 EPCOS (TDK) | 1 $0.4600 | Toroid | T38 | 0.425" (10.80mm) | 4.09 µH | ±30% | Ungapped | - | 10000 | 3.07 | 24.07 | 7.83 | - | 188 | Epoxy | 0.187" (4.75mm) | - | - | - | 1,499 | |
 B64290L0044X087 EPCOS (TDK) | 1 $0.4800 | Toroid | N87 | 0.535" (13.60mm) | 1.12 µH | ±25% | Ungapped | - | 2200 | 2.46 | 30.09 | 12.23 | - | 368 | Epoxy | 0.234" (5.95mm) | - | - | - | 5,177 | |
 B64290L0044X830 EPCOS (TDK) | 1 $0.5200 | Toroid | N30 | 0.535" (13.60mm) | 2.2 µH | ±25% | Ungapped | - | 4300 | 2.46 | 30.09 | 12.23 | - | 368 | Epoxy | 0.234" (5.95mm) | - | - | - | 4,940 | |
B64290P0037X087 EPCOS (TDK) | 1 $0.5500 | Toroid | N87 | 0.249" (6.32mm) | 560 nH | ±25% | Ungapped | - | 2200 | 4.97 | 15.21 | 3.06 | - | 46.5 | Parylene | 0.099" (2.52mm) | - | - | - | 5,426 | |
B64290L0038X049 EPCOS (TDK) | 1 $0.5600 | Toroid | N49 | 0.425" (10.80mm) | 610 nH | ±25% | Ungapped | - | 1500 | 3.07 | 24.07 | 7.83 | - | 188 | Epoxy | 0.187" (4.75mm) | - | - | - | 9,195 |