B66381 EPCOS, B66381 Datasheet
B66381
Manufacturer Part Number
B66381
Description
Core
Manufacturer
EPCOS
Datasheet
1.B66381.pdf
(2 pages)
www.DataSheet4U.com
I
I
Magnetic characteristics (per set)
l
A
A
V
Approx. weight 58 g/set
Ungapped
Material
N27
N72
Gapped
Material
N27
The A
one gapped core (dimension g > 0).
Calculation factors (for formulas, see “E cores: general information”, page 382)
Material
N27
Validity range:
e
l/A = 0,52 mm
e
min
e
E 40/16/12
Core
Size based on US lam. size E cores
US designation E 21
E cores are supplied as single units
= 77 mm
= 149 mm
= 143 mm
= 11 500 mm
L
value in the table applies to a core set comprising one ungapped core (dimension g = 0) and
A
nH
3800 + 30/– 20 % 1560 3050
4600 + 30/– 20 % 1900 3150
g
mm
0,50
L
value
Relationship between
air gap – A
K1 (25 °C)
239
2
2
–1
3
0,05
K1, K2: 0,10 mm < s < 2,50 mm
K3, K4: 130 nH < A
L
value
K2 (25 °C)
– 0,782
A
nH
411
e
L
value approx.
A
nH
L1min
L
< 1200 nH
Calculation of saturation current
K3 (25 °C)
378
P
W/set
< 2,15
(200 mT, 25 kHz, 100 °C)
< 1,12
(200 mT, 25 kHz, 100 °C)
V
425
166
08/01
e
K4 (25 °C)
– 0,847
K3 (100 °C) K4 (100 °C)
351
B66381-G500-X127
Ordering code
B66381-G-X127
B66381-G-X172
Ordering code
– 0,865
B66381
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B66381 Summary of contents
Page 1
... A value approx 411 166 Calculation of saturation current K3 (25 °C) K4 (25 °C) 378 – 0,847 < 1200 nH L 425 08/01 B66381 Ordering code B66381-G-X127 B66381-G-X172 Ordering code B66381-G500-X127 K3 (100 °C) K4 (100 °C) 351 – 0,865 ...
Page 2
... ZVEI (German Electrical and Electronic Manufacturers’ Association), unless otherwise agreed. This brochure replaces the previous edition. For questions on technology, prices and delivery please contact the Sales Offices of EPCOS AG or the international Representatives. Due to technical requirements components may contain dangerous substances. For information on the type in question please also contact one of our Sales Offices ...