B66343 Datasheet, PDF (1/2 Pages) EPCOS – EC 70/35/16 Core

EC 70/35/16
Core
I In accordance with IEC 60647
I Compact E core with large winding window
I Round center leg particularly suitable
for use of thick winding wires
I EC cores are supplied as single units
Magnetic characteristics (per set)
Σl/A = 0,52 mm^–1
l_e = 144 mm
A_e = 279 mm²
A_min = 211 mm²
V_e = 40 200 mm³
Approx. weight 252 g/set
B66343
Ungapped
Material
N27
A_L value
nH
µ_e A_L1min P_V
nH W/set
Ordering code
3900 + 30/– 20 % 1600 3050 < 4,80
B66343-G-X127
(200 mT, 25 kHz, 100 °C)
Gapped
Material
N27
g
mm
0,50 ± 0,05
1,00 ± 0,05
A_L value approx. µ_e
nH
529
217
320
131
Ordering code
B66343-G500-X127
B66343-G1000-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
Relationship between
air gap - A_L value
K1 (25 °C) K2 (25 °C)
320
– 0,725
Calculation of saturation current
K3 (25 °C) K4 (25 °C) K3 (100 °C) K4 (100 °C)
644
– 0,847
603
– 0,865
Validity range:
K1, K2: 0,10 mm < s < 3,50 mm
K3, K4: 120 nH < A_L < 1200 nH
503 08/01