2008 Sep 01

1630

Ferroxcube

Ferrite toroids

TN13/7.5/5

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: 1500 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)

2.46

effective volume

368

effective length

30.1

mm

effective area

12.2

m

mass of core

≈ 1.8

g

Fig.1 TN13/7.5/5 ring core.

Dimensions in mm.

handbook, halfpage

;;

;;

;;

;;

CBW313

6.8

±0.35

5.4

±0.3

coating PA11

(

≈0.3)

13.0

±0.35

Ring core data

GRADE

(nH)

TYPE NUMBER

4C65

64

± 25%

≈ 125

TN13/7.5/5-4C65

4A11

358

± 25%

1.

Old permeability specification maintained.

TN13/7.5/5-4A11

3F4

460

± 25%

≈ 900

TN13/7.5/5-3F4

4A15

610

± 25%

≈ 1200

TN13/7.5/5-4A15

3F3

900

± 25%

≈ 1800

TN13/7.5/5-3F3

3C90

1170

± 25%

≈ 2300

TN13/7.5/5-3C90

3C11

2200

± 25%

≈ 4300

TN13/7.5/5-3C11

3E25

2810

± 30%

≈ 5500

TN13/7.5/5-3E25

2.

Due to the rectangular BH-loop of 3R1, inductance values strongly depend on the magnetic state of the ring core and measuring

−−

TN13/7.5/5-3R1

WARNING

Do not use 3R1 cores close to their mechanical resonant frequency. For more information refer to “3R1” material specification in this

data handbook.