N72 datasheet(2/7 Pages) EPCOS

Il numero della parte	N72

Spiegazioni elettronici	Ferrites and accessories

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09/06

Please read Cautions and warnings and

Important notes at the end of this document.

Material properties

Preferred application

Power transformers

Material

N72

Base material

MnZn

Symbol

Unit

Initial permeability

(T = 25 °C)

2500

±25%

Flux density

(H = 1200 A/m, f = 10 kHz)

BS (25 °C)

BS (100 °C)

480

370

Coercive field strength

(f = 10 kHz)

Hc (25 °C)

Hc (100 °C)

A/m

Optimum frequency range

kHz

25 …

300

Hysteresis

material constant

10–6/mT <1.4

Curie temperature

°C

>210

Mean value of

at 25 … 55 °C

10–6/K

Density (typical values)

kg/m3

4750

Relative core losses

(typical values)

25 kHz, 200 mT, 100 °C

kW/m3

100 kHz, 200 mT, 100 °C

kW/m3

540

300 kHz, 100 mT, 100 °C

kW/m3

500

500 kHz, 50 mT, 100 °C

kW/m3

—

Resistivity

ρΩm12

Core shapes

E, EFD

N72

SIFERRIT materials

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