B66371 Datasheet, PDF (1/2 Pages) EPCOS – E 70/33/32 Core

E 70/33/32
Core
I E cores are supplied as single units
Magnetic characteristics (per set)
Σl/A = 0,22 mm^–1
l_e = 149 mm
A_e = 683 mm²
A_min = 676 mm²
V_e = 102 000 mm³
Approx. weight 514 g/set
B66371
Ungapped
Material
N27
N87
A_L value
nH
µ_e
A_L1min P_V
nH W/set
8850 + 30/– 20 % 1530 7200 < 19,00
(200 mT, 25 kHz, 100 °C)
9700 + 30/– 20 % 1700 7200 < 9,50
(100 mT, 100 kHz, 100 °C)
Ordering code
B66371-G-X127
B66371-G-X187
Gapped
Material
N27
g
mm
1,50 ± 0,05
A_L value approx.
µ_e
nH
655
113
Ordering code
B66371-G1500-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)
903
– 0,789
903
– 0,789
Calculation of saturation current
K3 (25 °C)
1568
1485
K4 (25 °C)
– 0,847
– 0,796
K3 (100 °C) K4 (100 °C)
1470
– 0,865
1438
– 0,873
Validity range:
K1, K2: 0,20 mm < s < 5,00 mm
K3, K4: 290 nH < A_L < 2880 nH
434 08/01