B66329 Datasheet, PDF (1/3 Pages) EPCOS – E 42/21/20 Core

E 42/21/20
Core
I In accordance with IEC 61246
I E cores are supplied as single units
Magnetic characteristics (per set)
Σl/A = 0,41 mm^–1
l_e = 97 mm
A_e = 234 mm²
A_min = 229 mm²
V_e = 22 700 mm³
Approx. weight 116 g/set
B66329
Ungapped
Mate- A_L value
rial nH
µ_e A_L1min P_V
nH W/set
Ordering code
N27 4750 + 30/– 20 % 1560 3800 < 4,40 (200 mT, 25 kHz, 100 °C) B66329-G-X127
N87 5200 + 30/– 20 % 1690 3800 < 12,00 (200 mT, 100 kHz, 100 °C) B66329-G-X187
Gapped
Mate- g
rial mm
A_L value approx.
µ_e
nH
N27 0,25 ± 0,02
1029
338
0,50 ± 0,05
603
198
1,00 ± 0,05
354
116
1,50 ± 0,05
259
85
Ordering code
B66329-G250-X127
B66329-G500-X127
B66329-G1000-X127
B66329-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)
354
– 0,770
354
– 0,770
Calculation of saturation current
K3 (25 °C)
574
555
K4 (25 °C)
– 0,847
– 0,796
K3 (100 °C) K4 (100 °C)
534
– 0,865
521
– 0,873
Validity range:
K1, K2: 0,10 mm < s < 3,00 mm
K3, K4: 160 nH < A_L < 1500 nH
427 08/01