4M2 datasheet(2/3 Pages) FERROXCUBE

Part #	4M2

Description	Material specification

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Manufacturer	FERROXCUBE [Ferroxcube International Holding B.V.]

Direct Link	http://www.ferroxcube.com

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2 / 3 page

2008 Sep 01

255

Ferroxcube

Material specification

4M2

4M2 SPECIFICATIONS

Low permeability specialty NiZn ferrite only used in

large toroids and machined products mainly for

scientific particle accelerators operating at frequencies

up to 10 MHz.

SYMBOL

CONDITIONS

VALUE

UNIT

µi

25

°C; ≤10 kHz;

0.25 mT

140

±20%

B25

°C; 10 kHz;

3000 A/m

≈ 310

mT

100

°C; 10 kHz;

3000 A/m

≈ 270

ρ

DC; 25

°C

≈ 105

Ωm

TC

≥ 200

°C

density

≈ 5000

kg/m3

handbook, halfpage

1

MBW446

10

102

10

3

1

10 3

10

f (MHz)

µ' ,

s µ''s

4M2

10

2

µ's

µ''

s

Fig.1

Complex permeability as

a function of frequency.

handbook, halfpage

500

50

250

0

MBW447

150

100

200

300

400

µ

i

T (oC)

4M2

Fig.2

Initial permeability as a

function of temperature.

handbook, halfpage

100

200

2000

500

0

MBW448

1000

100

200

300

400

100

0

H (A/m)

B

(mT)

4M2

25 oC

100 oC

Fig.3 Typical B-H loops.

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