MnZn Power Ferrite Material

EFD CORES

EFD core, EEM core, EER Cores, EFD-core, coil former core, FD10, EFD12, EFD13, EFD15, EFD20, EFD25, EFD30, EEM8, EEM10, EEM12, EEM13, EMI-Bead Cores, furnace transformer core, ferrite six-hole core, Ferrite Bead CoresEFD core, EEM core, EER Cores, EFD-core, coil former core, FD10, EFD12, EFD13, EFD15, EFD20, EFD25, EFD30, EEM8, EEM10, EEM12, EEM13, EMI-Bead Cores, furnace transformer core, ferrite six-hole core, Ferrite Bead Cores

Introduce of EFD core

EFD core is good for low profile, and the series of EFD cores contain FD10, EFD12, EFD13, EFD15, EFD20, EFD25, EFD30, EEM8, EEM10, EEM12, EEM13, etc. Standard EFD core sizes for low profile surface mount and PC Board mount transformers that are economically manufactured on our automatic winding and assembly equipment. For customers who need low profile switching transformers,our product packs up to 110 watts into a transformer only one half an inch high

Application of EFD core:

The core type used depends mainly on size restraints. EFD cores are used when a low profile is required. EFD core can also be used depending on particular requirements such as height restrictions etc. The application field of EFD core is widely including flyback transformers, EMI-Bead Cores, furnace transformer core, ferrite six-hole core, Ferrite Bead Cores, coil former core, etc.

Type Dimensions(mm)
A B C D E F G H
EFD10 10.5±0.3 5.2±0.1 2.7±0.1 4.6±0.2 7.65±0.3 3.75±0.15 0.2±0.1 1.5±0.2
EFD12 12.5±0.3 6.2±0.2 3.5±0.1 5.4±0.2 9.0±0.3 4.5±0.2 0.2±0.1 2.0±0.2
EFD13 13.6±0.3 8.8±0.15 3.7±0.2 6.0±0.15 10.0±0.25 7.0±0.15 2.0±0.15
EFD15 15.0±0.4 7.5±0.15 4.65±0.15 5.3±0.15 11.0±0.35 5.5±0.25 2.4±0.1
ED15A 15.0±0.5 7.5±0.2 4.7±0.2 5.3±0.3 11.0±0.4 5.5±0.3 0.2±0.1 2.4±0.2
EFD20 20.0±0.55 10.0±0.25 6.65 +0.2
         -0.15
8.9±0.2 15.4±0.5 7.7±0.25 3.6±0.2
EFD20A 20.0±0.6 10.0±0.3 6.7±0.2 8.9±0.2 15.4±0.5 7.7±0.3 0.2±0.1 3.6±0.2
EFD25 25.0±0.65 12.5±0.25 9.1±0.2 11.4±0.2 18.7±0.6 9.3±0.25 5.2±0.25
EFD25A 25.0±0.7 12.5±0.3 9.1±0.3 11.4±0.3 18.7±0.7 9.3±0.3 0.6±0.1 5.2±0.3
EFD30 30.0±0.8 15.0±0.25 9.1±0.3 14.6±0.3 22.4±0.75 11.2±0.3 4.9±0.15
EFD30A 30.0±0.9 15.0±0.3 9.1±0.3 14.6±0.4 22.4±0.8 11.2±0.3 0.8±0.2 4.9±0.3
Type Core parameter weight (g/pr. ) Al(nH/N2 )±30% PC(max) F2B1
C1 (mm-1) Ae (mm2) Ie (mm) Ve (mm3) F2BD F2B1
EFD10 3.3 7.2 23.7 171 0.9 500 0.095
EFD12 2.5 11.4 28.5 325 1.7 700 0.18
EFD13 3.07 12.6 38.7 487 2.5 630 0.27
EFD15 2.27 15 34.0 510 6.8 780
ED15A 2.27 15.0 34.0 510 2.8 700 0.28
EFD20 1.52 31.0 47.0 1460 7.4 1200
EFD20A 1.52 31.0 47.0 1460 7.0 1150 0.8
EFD25 1.0 58.0 57.0 3300 16.6 2000 1800
EFD25A 1.0 58.0 57.0 3300 16 2000 1.8
EFD30 0.985 69.0 68.0 4700 24 2050 2050
EFD30A 0.98 69.0 68.0 4700 24 1900 2.59
Al:1kHz,0.5mA,100Ts
Pc:100kHz,200mT,100 ( F2B1)