ETD Cores (9578494902)
Part Number: 9578494902
78 ETD CORE SET
ETD cores have been designed to make optimum use of a given volume of ferrite material for maximum throughput power, specifically for forward converter transformers. The structure, which includes a round center post, approaches a nearly uniform cross-sectional area throughout the core and provides a winding area that minimizes winding losses. ETD cores are used mainly in switched-mode power supplies and permit off-line designs where IEC and VDE isolation requirements must be met.
ETD cores can be supplied with the center post gapped to a mechanical dimension or an ALvalue.
Weight indicated is per pair or set.
Weight: 124 (g)
|Dim||mm||mm tol||nominal inch||inch misc.|
AL value is measured at 1 kHz, B < 10 gauss
A MnZn ferrite specifically designed for power applications for frequencies up to 200 kHz and low loss inductive applications to 500 kHz.
Available in 78 material:
78 Material Characteristics
|Initial Permeability @ B < 10 gauss||µi||2300|
|Flux Density @ Field Strength||Gauss
|Residual Flux Density||Gauss||Br||1500|
|Loss Factor @ Frequency||10 -6
|Tan δ/ µi||4.5
|Temperature Coefficient of Initial Permeability (20 -70°C)||%/°C||1.0|
**** Characteristic curves are measured on standard Toroids (18/10/6 mm) at 25°C and 10 kHz unless otherwise indicated. Impedance characteristics are measured on standard shield beads (3.5/1.3/6.0 mm) unless otherwise indicated.