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G&M Golden Mangetic Technology ( Shenzhen ) Co., LTD.

Tel:+86-755-86332949  Fax: +86-755-26406857

Address:Unit 603, block A huachuangda building,  Baoan District, Shenzhen, Guangodng 

G&M Golden Magnetic Technology (Hongkong ) Co.,Ltd.

Tel:+852-29477355    Fax:+852-29477356

Office Address:1101 Leader industry center, No.57-59 An pui wan Street, Fotan, Shatin, Hongkong

Factory Add:118 Liangtian Zone, Taimei town, Boluo disrict, huizhou city, guangdong province

E-mail:Daniel@goldenmagnetic.com


Magnetic Core for Amplifier Inductor

Magnetic Core for Amplifier Inductor

Sendust Core is made from 6%Al,9%Si and 85%Fe. It is mainly used to replace iron powder core as its core loss is 80% less than the powdered iron, so it can be applied with the frequency above 8kHz.

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Physical Dimensions

OD

Bare Core Nominal

74.1 mm

2.917 in

Coated Core (max)

75.2 mm

2.961 in

ID

Bare Core Nominal

45.3 mm

1.783 in

Coated Core (min)

44.1 mm

1.736 in

Ht

Bare Core Nominal

35 mm

1.378 in

Coated Core (max)

36.2 mm

1.425 in

Magnetic Dimensions

Ae

Effective  Magnetic Cross Section 4.94 cm²

Le

Effective  Magnetic Path Length 18.4 cm

Ve

Effective Core Volume 90.9 cm³

WA

Minimum Effective Window Area 15.3 cm²

SA

Surface Area 228 cm²

MLT

Mean Length Per Turn 12.6 cm

Permeability

Reference Perm.

AL Value (nH/N²)

AS Sendust

AF Fe-Si

APH Super  Sendust

AH High Flux

14µ

48

AS740014

AF740014

APH740014

AH740014

26µ

89

AS740026

AF740026

APH740026

AH740026

40µ

137

AS740040

AF740040

APH740040

AH740040

60µ

206

AS740060

AF740060

APH740060

AH740060

75µ

257

AS740075

AF740075

APH740075

AH740075

90µ

309

AS740090

AF740090

APH740090

AH740090

125µ

429

AS740125

AF740125

 

AH740125

147µ

505

AS740147

 

 

AH740147

Approx. Unit Weight:

530 g

620 g

510 g

620 g

Test Conditions

Winding

N=100, #18 AWG

Frequency

10 kHz

Voltage

2.2 V

AL Tolerance

±8%

Magnet Wire Winging Data

Wire Size

AWG

8

10

12

14

16

18

20

22

24

26

28

mm

3.150

2.500

2.000

1.600

1.250

1.000

0.800

0.630

0.500

0.400

0.315

Single Layer

Turns

35

44

55

69

87

109

136

170

212

264

329

Rdc(Ω)

9.0 m

18.1m

35.9m

71.7m

143.7m

286.3m

568.1m

1.1

2.2

4.4

8.8

Full Winding

Turns

80

124

192

296

459

710

1,099

1,701

2,633

4,075

6,307

Rdc(Ω)

20.7m

50.9m

125.4m

307.4m

758.0m

1.9

4.6

11.3

27.8

68.5

168.5

Coating/Packaging Information

Coating Type

Black Epoxy

Voltage Breakdown

2500 Vrms

Limit

0.1 mA, 5 s

Package Quantity

30 Pcs/Box

G&M is able to customize the design to meet customers’ requirements.

Company Profile:

Strength of the company, the existing factory building, by self-purchased land for building modern dormitory and workshop of 16000 square meters, owns excellent pulverizing equipment, automatic bell type furnace, large-tonnage hydraulic press, automatic inductance sorting machine, automatic chamfering machine, automatic powder coating equipment, etc., to better meet the requirements of customers, the company has more than 60 acres of new land, has been put into production in December 17 years, with a total investment of 60 million yuan, the new factory will be planned according to the requirements of new automation.

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Percent Initial Permeability vs.DC Magnetizing Force


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Percent Initial Permeability vs.Peak AC Flux Density

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Initial Permeability vs.Frequency


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Permeability vs. Temperature

Sendust (AS) Core Loss

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Typical Applications:

Workshop and equipment:

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Corporate honor:

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