ER51 datasheet(2/4 Pages) FERROXCUBE

2 / 4 page

2008 Sep 01

Ferroxcube

Planar ER cores and accessories

ER51/10/38

CORE SETS

Effective core parameters

SYMBOL

PARAMETER

VALUE

UNIT

Σ(I/A)

core factor (C1)

0.209

mm−1

effective volume

25800

mm3

effective length

73.5

effective area

351

mm2

Amin

minimum area

314

mm2

mass of core half

≈ 74.7

MFP219

R0.25 max (4x)

4.95

± 0.15

10.16

± 0.15

± 0.4

R2.0 (8x)

5˚

3 +

0.3

− 0

R1.0

(2x)

Section A-A

38.1

± 0.7

4.4 min (2x)

41.8

± 0.8

± 1.0

Fig.1 ER51/10/38 core half.

Dimensions in mm.

Core halves for general purpose transformers and power applications

Clamping force for AL measurements, 150

± 25 N.

Properties of core sets under power conditions

GRADE

(nH)

µe

AIR GAP

(

µm)

TYPE NUMBER

3C92

8100

± 25 %

≈ 1350

≈ 0

ER51/10/38-3C92

3C93

9400

± 25 %

≈ 1570

≈ 0

ER51/10/38-3C93

3C95

14230

± 25 %

≈ 2370

≈ 0

ER51/10/38-3C95

3C96

10200

± 25 %

≈ 1700

≈ 0

ER51/10/38-3C96

3F3

10200

± 25 %

≈ 1700

≈ 0

ER51/10/38-3F3

GRADE

B (mT) at

CORE LOSS (W) at

H = 250 A/m;

f = 25 kHz;

T = 100

°C

f = 100 kHz;

= 100 mT;

T = 100

°C

f = 100 kHz;

= 200 mT;

T=25

°C

f= 100 kHz;

= 200 mT;

T=100

°C

f = 400 kHz;

=50 mT;

T = 100

°C

f = 500 kHz;

=50 mT;

T = 100

°C

3C92

≥ 370

≤ 2.5

−≤ 15.2

−−

3C93

≥ 320

≤ 2.5 (1)

Measured at 140

°C.

−≤ 15.2 (1)

−−

3C95

≥ 320

−≤ 17.9

≤ 17

−−

3C96

≥ 340

≤ 1.68

−≤ 11.2

−≤ 10.5

3F3

≥ 300

≤ 3.2

−−

≤ 5.0

−

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