EPCOS B66389 User Manual
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E 36/18/11
■ E cores are supplied as single units
Magnetic characteristics (per set)
Σl/A = 0,68 mm
le= 81 mm
= 120 mm
A
e
A
= 112 mm
min
Ve= 9 670 mm
Approx. weight 50 g/set
Ungapped
–1
2
2
3
B66389Core
Material A
value
L
nH
N27 2900 + 30/– 20 % 1550 2330 < 1,85
µ
A
nH
L1min
P
V
W/set
e
Ordering code
B66389-G-X127
(200 mT, 25 kHz, 100 °C)
N87 3100 + 30/– 20 % 1680 2330 < 5,00
B66389-G-X187
(200 mT, 100 kHz, 100 °C)
Gapped
Material g
mm
N27 1,00
The A
value in the table applies to a core set comprising one ungapped core (dimension g = 0) and
L
± 0,05 183 96 B66389-G1000-X127
value approx.
A
L
nH
µ
e
Ordering code
one gapped core (dimension g > 0).
Calculation factors (for formulas, see “E cores: general information”, page 382)
Material Relationship between
air gap – A
value
L
Calculation of saturation current
K1 (25 °C) K2 (25 °C) K3 (25 °C) K4 (25 °C) K3 (100 °C) K4 (100 °C)
N27 182 – 0,749 302 – 0,847 280 – 0,865
N87 182 – 0,749 295 – 0,796 273 – 0,873
Validity range: K1, K2: 0,10 mm < s < 2,50 mm
K3, K4: 100 nH < A
< 930 nH
L
423 08/01
E 36/18/11
Coil former
Material: GFR polyterephthalate (UL 94 V-0, insulation class to IEC 60085:
F max. operating temperature 155 °C), color code black
Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 °C, 2 s
Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 °C, 3,5 s
Winding: see “Processing Notes”, page 159
Squared pins
B66390Accessories
Sections A
N
mm
l
2
N
mm
A
valueµΩPins Ordering code
R
1 122,55 76,4 21,45 16 B66390-A1016-T1
_
38,5
0,4
27,7 max.
0,43,5
_
0,5
_
37,4
_
0,3
24,2
10,6+0,15
_
12,8 0,2
9. 16
11,7+0,150,2
_
9
0,1
_
3
ø1,6+0,1
0,2
_
14
7 x 5 = 35
23,5 0,35
_
0,11
_
_
1 0,1
0,7
Hole arrangement
View in
mounting direction
18
5
30
FEK0354-Z
424 08/01
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