B66347 Datasheet, PDF (1/3 Pages) EPCOS – ER 42/22/15 Core

ER 42/22/15
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 = 0,58 mm^–1
l_e = 99 mm
A_e = 170 mm²
A_min = 170 mm²
V_e = 16 800 mm³
Approx. weight 84 g/set
B66347
Ungapped
Material
N27
N87
A_L value
nH
µ_e A_L1min P_V
nH W/set
Ordering code
3200 + 30/– 20 % 1480 2700 < 3,10
B66347-G-X127
(200 mT, 25 kHz, 100 °C)
3700 + 30/– 20 % 1710 2700 < 9,00
B66347-G-X187
(200 mT, 100 kHz, 100 °C)
Gapped
Material
N27
g
mm
1,00 ± 0,05
A_L value approx. µ_e
nH
257
119
Ordering code
B66347-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
N87
Relationship between
air gap – A_L value
K1 (25 °C) K2 (25 °C)
257
– 0,741
257
– 0,741
Calculation of saturation current
K3 (25 °C)
415
401
K4 (25 °C)
– 0,847
– 0,796
K3 (100 °C) K4 (100 °C)
387
– 0,865
377
– 0,873
Validity range:
K1, K2: 0,10 mm < s < 3,00 mm
K3, K4: 110 nH < A_L < 1100 nH
471 08/01