04740474| Datasheet

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ER 49/27/17 Core
I Round center leg particularly suitable

B66391

for use of thick winding wires or tapes
I For compact winding design with

low leakage inductance
I ER cores are supplied as single units

Magnetic characteristics (per set)

l/A le Ae A min Ve

= 0,49 mm 1 = 118 mm = 243 mm2 = 225 mm2 = 28 700 mm3

Approx. weight 146 g/set

Ungapped Material N27 A L value nH

A L1min P V nH W/set

Ordering code

3500 + 30/ 20 % 1350 3240

< 5,38 B66391-G-X127 (200 mT, 25 kHz, 100 C)

Calculation factors (for formulas, see "E cores: general information", page 382) Material Relationship between air gap A L value K1 (25 C) N27 Validity range: 342 K2 (25 C) 0,750 Calculation of saturation current K3 (25 C) 578 K4 (25 C) 0,847 K3 (100 C) K4 (100 C) 540 0,865

K1, K2: 0,10 mm < s < 3,50 mm K3, K4: 130 nH < A L < 1300 nH

474 08/01