TN25SLASH15SLASH10-3F3 datasheet(2/3 Pages) FERROXCUBE

2 / 3 page

2008 Sep 01

1683

Ferroxcube

Ferrite toroids

TN25/15/10

RING CORES (TOROIDS)

Effective core parameters

Coating

The cores are coated with polyamide 11 (PA11), flame

retardant in accordance with “UL 94V-2”; UL file number

E 45228 (M).

The colour is white.

Maximum operating temperature is 160

°C.

Isolation voltage

DC isolation voltage: 2000 V.

Contacts are applied on the edge of the ring core, which is

also the critical point for the winding operation.

SYMBOL

PARAMETER

VALUE

UNIT

Σ(I/A)

core factor (C1)

1.23

mm−1

effective volume

2944

mm3

effective length

60.2

effective area

48.9

mm2

mass of core

≈ 15

Fig.1 TN25/15/10 ring core.

Dimensions in mm.

handbook, halfpage

;;

CBW306

14.0

±0.6

10.6

±0.5

coating PA11

(

≈0.3)

25.8

±0.7

Ring core data

Properties of cores under power conditions

GRADE

(nH)

µi

TYPE NUMBER

3F3

1840

± 25%

≈ 1800

TN25/15/10-3F3

3C90

2350

± 25%

≈ 2300

TN25/15/10-3C90

3C11

4400

± 25%

≈ 4300

TN25/15/10-3C11

3E25

5620

± 25%

≈ 5500

TN25/15/10-3E25

GRADE

B (mT) at

CORE LOSS (W) at

H = 250 A/m;

f = 25 kHz;

T = 100

°C

f= 25 kHz;

=200 mT;

T = 100

°C

f = 100 kHz;

= 100 mT;

T = 100

°C

f = 400 kHz;

=50 mT;

T = 100

°C

3C90

≥320

≤ 0.33

−

3F3

≥320

−≤ 0.32

≤ 0.56

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