Ferrites and accessories
E 42/21/20
Core and accessories
Series/Type:
Date:
B66329, B66243
May 2017
EPCOS AG 2017. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS’ prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
E 42/21/20
Core
■
To IEC 62317-8
■
Delivery mode: single units
B66329
Magnetic characteristics
(per set)
Σl/A
l
e
A
e
A
min
V
e
= 0.41 mm
–1
= 97 mm
= 234 mm
2
= 229 mm
2
= 22700 mm
3
Approx. weight
116 g/set
Ungapped
Mate- A
L
value
rial
nH
N27
N87
N97
N95
4750 +30/–20%
5200 +30/–20%
5400 +30/–20%
6700 +30/–20%
μ
e
B
S
*
mT
P
V
W/set
Ordering code
1560 320
1690 320
1781 320
2292 320
< 4.40 (200 mT, 25 kHz, 100 °C) B66329G0000X127
< 12.00 (200 mT, 100 kHz, 100 °C) B66329G0000X187
< 10.20 (200 mT, 100 kHz, 100 °C) B66329G0000X197
< 12.60 (200 mT, 100 kHz, 25 °C) B66329G0000X195
< 11.50 (200 mT, 100 kHz, 100 °C)
* H = 250 A/m; f = 10 kHz; T = 100 °C
Gapped
(A
L
values/air gaps examples)
Material
g
mm
N27,
N87
0.25
±0.02
0.50
±0.05
1.00
±0.05
1.50
±0.05
A
L
value
approx.
nH
1029
603
354
259
μ
e
Ordering code
** = 27 (N27)
= 87 (N87)
B66329G0250X1**
B66329G0500X1**
B66329G1000X1**
B66329G1500X1**
338
198
116
85
The A
L
value in the table applies to a core set comprising one ungapped core (dimension g = 0 mm)
and one gapped core (dimension g > 0 mm).
Other A
L
values/air gaps and materials available on request – see Processing remarks on page 6.
Please read
Cautions and warnings
and
Important notes
at the end of this document.
2
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E 42/21/20
Core
Calculation factors
(for formulas, see
“E cores: general information”
)
Material
Relationship between
air gap – A
L
value
K1 (25 °C)
N27
N87
Validity range:
354
354
K2 (25 °C)
–0.770
–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
521
–0.865
–0.873
B66329
K1, K2: 0.10 mm < s < 3.00 mm
K3, K4: 160 nH < A
L
< 1500 nH
Please read
Cautions and warnings
and
Important notes
at the end of this document.
3
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E 42/21/20
Accessories
Coil former
GFR polyterephthalate (UL 94 V-0, insulation class to IEC 60085:
F max. operating temperature 155 °C), color code black
Valox 420-SE0 [E121562 (M)] SABIC INNOVATIVE PLASTICS US L L C
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, 2.1
Sections
1
A
N
mm
2
172
l
N
mm
100
A
R
value
μΩ
20
Pins
18
Ordering code
B66243B1018T001
Material:
B66243
Please read
Cautions and warnings
and
Important notes
at the end of this document.
4
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E 42/21/20
Accessories
Coil former
Polyterephthalate GV (UL 94 V-0, insulation class to IEC 60085:
H max. operating temperature 180 °C), color code black
Rynite FR 530
®
[
E41938 (M)
]
, E I DUPONT DE NEMOURS & CO INC
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, 2.1
Sections
1
A
N
mm
2
187
l
N
mm
133
A
R
value
μΩ
24.4
Pins
12
Ordering code
B66243S1012T001
Material:
B66243
Please read
Cautions and warnings
and
Important notes
at the end of this document.
5
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