Datasheet > 4330-030-37700

4330-030-37700

更新时间： 2024-02-18 10:22:54

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CORE TOROID 3R1 24MM

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4330-030-37700 数据手册

Philips Components

Product speciﬁcation

Ferrite ring cores (toroids)

TN23/14/7

RING CORES (TOROIDS)

Effective core parameters

23.7 ±0.7

SYMBOL

PARAMETER

core factor (C1)

VALUE UNIT

handbook, halfpage

Σ(I/A)

V_e

1.81

1722

55.8

30.9

≈8.4

mm⁻¹

mm³

mm²

effective volume

effective length

effective area

mass of core

I_e

A_e

13.1 ±0.6

Coating

coating PA11

(≈0.3)

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

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

E 45228 (M).

7.5

±0.45

Isolation voltage

CBW307

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.

Dimensions in mm.

Fig.1 TN23/14/7 ring core.

Ring core data

A_L

GRADE

µ_i

COLOUR CODE

violet

TYPE NUMBER

(nH)

4C65

4A11

3R1⁽¹⁾

3F3

87 ±25%

485 ±25%

−

≈125

≈700

TN23/14/7-4C65

TN23/14/7-4A11

TN23/14/7-3R1

TN23/14/7-3F3

TN23/14/7-3C90

TN23/14/7-3C11

TN23/14/7-3E25

pink

≈800

black

1250 ±25%

1600 ±25%

3000 ±25%

3820 ±25%

≈1800

≈2300

≈4300

≈5500

blue

3C90

3C11

3E25

ultramarine

white

orange

Note

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

measuring conditions. Therefore no A_Lvalue is specified. For the application in magnetic amplifiers A_Lis not a critical

parameter.

WARNING

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

speciﬁcation in this data handbook.

1999 Dec 23

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