Click here for product information pb rohs_mat rohs_comp  msds

ETD Cores (9578606002)

Part Number: 9578606002
78 ETD CORE SET
Dimensions
Inductive Components
Closed Magnetic Circuit
Printer Friendly Data Sheet
Check Stock

Part Number: 9578606002

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.

Catalog Drawing
3D Model

Weight indicated is per pair or set.

Weight: 274 (g)

Dimmmmm tolnominal inchinch misc.
A59.8± 1.002.354_
B30± 0.251.181_
C21.7± 0.400.854_
D22.55± 0.250.888_
E43.6min1.717min
F21.7± 0.400.854_

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)6650 ±25%
Ae(cm2)3.57
Σl/A(cm-1)3.9
le(cm)13.87
Ve(cm3)49.52
Amin(cm2)3.23

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:

RFID Rods

Toroids

Mated Parts

78 Material Characteristics
Property Unit Symbol Value
Initial Permeability @ B < 10 gauss µi 2300
Flux Density @ Field Strength Gauss
Oersted
B
H
4800
5
Residual Flux Density Gauss Br 1500
Coercive Force Oersted Hc 0.20
Loss Factor @ Frequency 10 -6
MHz
Tan δ/ µi 4.5
0.1
Temperature Coefficient of Initial Permeability (20 -70°C) %/°C 1.0
Curie Temperature °C Tc >200
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

You must be signed in to use the forums

Need an account? Sign Up Here

Fill your details to signup

Have an account? Login Here