B66357 Datasheet, PDF (1/2 Pages) EPCOS – ER 54/18/18 Core

ER 54/18/18
Core
I Round center leg particularly suitable
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)
Σl/A = 0,35 mm^–1
l_e = 90 mm
A_e = 256 mm²
A_min = 252 mm²
V_e = 23 000 mm³
Approx. weight 119 g/set
B66357
Ungapped
Material
N27
N87
A_L value
nH
µ_e A_L1min P_V
nH W/set
Ordering code
5600 + 30/– 20 % 1560 4480 < 4,40
B66357-G-X127
(200 mT, 25 kHz, 100 °C)
5800 + 30/– 20 % 1620 4480 < 12,50
B66357-G-X187
(200 mT, 100 kHz, 100 °C)
Gapped
Material
N27
g
mm
0,50 ± 0,05
A_L value approx. µ_e
nH
620
173
Ordering code
B66357-G500-X127
The A_L value in the table applies to a core set comprising one ungapped core (dimension g = 0) and
one gapped core (dimension g > 0).
Calculation factors (for formulas, see “E cores: general information”, page 382)
Material
N27
N87
Relationship between
air gap – A_L value
K1 (25 °C) K2 (25 °C)
360
– 0,786
360
– 0,786
Calculation of saturation current
K3 (25 °C)
635
616
K4 (25 °C)
– 0,847
– 0,796
K3 (100 °C) K4 (100 °C)
590
– 0,865
574
– 0,873
Validity range:
K1, K2: 0,15 mm < s < 3,50 mm
K3, K4: 180 nH < A_L < 1800 nH
475 08/01