4B2 datasheet(2/3 Pages) FERROXCUBE

2 / 3 page

2008 Sep 01

232

Ferroxcube

Material specification

4B2

4B2 SPECIFICATIONS

Medium permeability NiZn ferrite for use in RF tuning,

especially antenna rods in RFID transponders in

automotive applications, and wideband and balun

transformers.

SYMBOL

CONDITIONS

VALUE

UNIT

µi

°C; ≤10 kHz;

0.25 mT

250

± 20 %

B25

°C; 10 kHz;

3000 A/m

≈ 360

100

°C; 10 kHz;

3000 A/m

≈ 310

tan

δ/µi

°C; 3 MHz;

0.25 mT

≤ 300 × 10−6

αF

≤10 kHz; 0.25 mT;

−40 to 25 °C(−1 ± 4) × 10−6

K−1

−10 to 55 °C(−1 ± 4) × 10−6

0to25

°C(−2.5 ± 4) × 10−6

25 to 55

°C(2 ± 4) × 10−6

25 to 85

°C(0.5 ± 4) × 10−6

DC; 25

°C

≈ 105

Ωm

≥ 335

°C

density

≈ 4600

kg/m3

Fig.1

Complex permeability as

a function of frequency.

handbook, halfpage

MFP116

102

10 3

f (MHz)

µ' ,

s µ''s

4B2

µ's

µ''

Fig.2

Initial permeability as a

function of temperature.

handbook, halfpage

500

100

500

MFP117

300

100

200

300

400

T ( C)

4B2

Fig.3 Typical B-H loops.

handbook, halfpage

100

200

2000

500

MFP118

1000

100

200

300

400

100

H (A/m)

(mT)

4B2

25 oC

100 oC

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