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ETD Cores (9595343502*)
Part Number: 9595343502
95 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.
Catalog Drawing
3D Model
Weight indicated is per pair or set.
Weight: 40 (g)
| Dim | mm | mm tol | nominal inch | inch misc. |
| A | 34.2 | ± 0.65 | 1.346 | _ |
| B | 17.3 | ± 0.20 | 0.681 | _ |
| C | 10.8 | ± 0.30 | 0.425 | _ |
| D | 12.1 | ± 0.20 | 0.476 | _ |
| E | 25.6 | min | 1.008 | min |
| F | 10.8 | ± 0.30 | 0.425 | _ |
Chart Legend
Σl/A : Core Constant, le : Effective Path Length, Ae : Effective Cross-Sectional Area, Ve : Effective Core Volume
AL : Inductance Factor 
Explanation of Part Numbers: Digits 1 & 2 = product class and 3 & 4 = material grade.
| Electrical Properties |
| AL(nH) | 3570 ±25% |
| Ae(cm2) | 0.972 |
| Σl/A(cm-1) | 8.2 |
| le(cm) | 7.9 |
| Ve(cm3) | 7.68 |
| Amin(cm2) | 0.916 |
AL value is measured at 1 kHz, B < 10 gauss
A low loss MnZn ferrite material for power applications up to 200 kHz with low temperature variation. New type of 95 material is a low loss power material which features less power loss variation over temperature (25-100°C) at moderate flux densities for operation below 200 kHz.
Available in 95 material:
Pot Cores
RM
PQ
EFD
EP
95 Material Characteristics
| Property |
Unit |
Symbol |
Value |
| Initial Permeability @ B < 10 gauss |
|
µi |
3000 |
| Flux Density @ Field Strength |
Gauss
Oersted |
B
H |
5000
5 |
| Residual Flux Density |
Gauss |
Br |
1200 |
| Coercive Force |
Oersted |
Hc |
0.18 |
| Loss Factor @ Frequency |
10 -6
MHz |
Tan δ/ µi |
2.5
0.1 |
| Temperature Coefficient of Initial Permeability (20 -70°C) |
%/°C |
|
0.6 |
| Curie Temperature |
°C |
Tc |
>220 |
| Resistivity |
Ohm-cm |
ρ |
200 |
**** 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.
Material Safety Data Sheet (MSDS)
Click here to download Complex Permeability vs. Frequency (CSV)
Ferrite Material Constants
Specific Heat
0.25 cal/g/°C
Thermal Conductivity
3.5 - 4.5 mW/cm-°C
Coefficient of Linear Expansion
8 - 10x10-6/°C
Tensile Strength
4.9 kgf/mm2
Compressive Strength
42 kgf/mm2
Young's Modulus
15x103 kgf/mm2
Hardness (Knoop)
650
Specific Gravity
≈4.7 g/cm3
The above quoted properties are typical for Fair-Rite MnZn and NiZn ferrites.
Storage and Operating Temperature
Printer Friendly Data Sheet - Download as pdf file
* Non-standard part. May have longer lead time, higher price, and higher minimum order quantity.