for especially flat transformer design

Magnetic characteristics (per set)

= 34 mm

Approx. weight 2,8 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 < 1,00 mm

Material

nH

nH

W/set

Ordering code

N49

600 + 30/– 20 %

1080 330

< 0,11

(50 mT, 500 kHz, 100 °C)

B66413-G-X149

N87

780 + 30/– 20 %

1400 560

< 0,28

(200 mT, 100 kHz, 100 °C)

B66413-G-X187

Material

nH

g

approx. mm

Ordering code

N87

100

± 10 %

180

0,17

B66413-U100-K187

160

± 15 %

288

0,08

B66413-U160-L187

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

29,7

– 0,676

44,2

– 0,796

33,2

– 0,873

FEK0417-2

11±0,35

5,3±0,15

15±0,4

B66413

Core

EFD 15/8/5