B66421-U160-K187 EPCOS [EPCOS], B66421-U160-K187 Datasheet

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B66421-U160-K187

Manufacturer Part Number
B66421-U160-K187
Description
EFD 25/13/9 Core
Manufacturer
EPCOS [EPCOS]
Datasheet
I
I
I
Magnetic characteristics (per set)
l
A
A
V
Approx. weight 16,6 g/set
Ungapped
Material
N87
Gapped
Material
N87
The A
one gapped core (dimension g > 0).
Calculation factors (for formulas, see “E cores: general information”, page 382)
Material
N87
Validity range:
e
l/A = 0,98 mm
e
min
e
EFD 25/13/9
Core
E core with flattened, lower center leg
for especially flat transformer design
For DC/DC converters
EFD cores are supplied as single units
= 57 mm
= 58 mm
= 57 mm
= 3 310 mm
L
value in the table applies to a core set comprising one ungapped core (dimension g = 0) and
A
nH
2000 + 30/– 20 % 1560 1280
A
nH
160
250
315
L
L
value
value
2
2
Relationship between
air gap – A
K1 (25 °C)
103
–1
10 %
10 %
10 %
3
K1, K2: 0,10 mm < s < 1,40 mm
K3, K4: 50 nH < A
L
value
K2 (25 °C)
– 0,734
125
195
246
e
e
A
nH
L
L1min
< 410 nH
Calculation of saturation current
K3 (25 °C)
154
P
W/set
< 1,80
(200 mT, 100 kHz, 100 °C)
V
512
g
approx. mm
0,55
0,30
0,22
08/01
K4 (25 °C)
– 0,796
K3 (100 °C) K4 (100 °C)
138
Ordering code
B66421-G-X187
Ordering code
B66421-U160-K187
B66421-U250-K187
B66421-U315-K187
– 0,873
B66421

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B66421-U160-K187 Summary of contents

Page 1

... P e L1min V nH W/set < 1,80 (200 mT, 100 kHz, 100 ° approx. mm 0,55 0,30 0,22 Calculation of saturation current K3 (25 °C) K4 (25 °C) 154 – 0,796 < 410 nH L 512 08/01 B66421 Ordering code B66421-G-X187 Ordering code B66421-U160-K187 B66421-U250-K187 B66421-U315-K187 K3 (100 °C) K4 (100 °C) 138 – 0,873 ...

Page 2

EFD 25/13/9 Accessories Coil former Material: GFR thermosetting plastic V-0, insulation class to IEC 60085: B66422-B: F max.operating temperature 155 °C; color code green B66422-W: H max.operating temperature 180 °C; color code black Solderability: to IEC 60068-2-20, test ...

Page 3

Herausgegeben von EPCOS AG Marketing Kommunikation, Postfach 80 17 09, 81617 München, DEUTSCHLAND  EPCOS AG 2000. Alle Rechte vorbehalten. Vervielfältigung, Veröffentlichung, Verbreitung und Verwertung dieser Broschüre und ihres Inhalts ohne ausdrückliche Genehmigung der EPCOS AG nicht gestattet. Mit den ...

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