for especially flat transformer design

Magnetic characteristics (per set)

= 47 mm

Approx. weight 7,2 g/set

Ungapped

Gapped

one gapped core (dimension g > 0).

Calculation factors (for formulas, see “E cores: general information”, page 382)

Validity range:

K1, K2: 0,10 mm < s < 1,40 mm

Material

nH

nH

W/set

Ordering code

N49

910 + 30/– 20 % 1100 750

< 0,29

(50 mT, 500 kHz, 100 °C)

B66417-G-X149

N87

1200 + 30/– 20 % 1440 660

< 1,05

(200 mT, 100 kHz, 100 °C)

B66417-G-X187

Material

nH

g

approx. mm

Ordering code

N87

100

± 10 %

120

0,49

B66417-U100-K187

160

± 10 %

193

0,25

B66417-U160-K187

Material

Relationship between

Calculation of saturation current

K1 (25 °C)

K2 (25 °C)

K3 (25 °C)

K4 (25 °C)

K3 (100 °C) K4 (100 °C)

N87

61,1

– 0,699

85,4

– 0,796

75,7

– 0,873

B66417

Core

EFD 20/10/7