Datasheet > B66421-U160-K187

B66421-U160-K187

更新时间： 2024-01-24 12:27:25

品牌	Logo	应用领域
爱普科斯 - EPCOS		/
页数	文件大小	规格书
3页	86K
描述
EFD 25/13/9 Core

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B66421-U160-K187 数据手册

EFD 25/13/9

Core

B66421

ꢀ E core with flattened, lower center leg

for especially flat transformer design

ꢀ For DC/DC converters

ꢀ EFD cores are supplied as single units

Magnetic characteristics (per set)

–1

Σl/A = 0,98 mm

= 57 mm

= 58 mm

= 57 mm

min

= 3 310 mm

Approx. weight 16,6 g/set

Ungapped

Material A value

Ordering code

L1min

W/set

N87

2000 + 30/– 20 % 1560 1280 < 1,80

B66421-G-X187

(200 mT, 100 kHz, 100 °C)

Gapped

Material A value

Ordering code

approx. mm

N87

160 10 %

250 10 %

315 10 %

125

195

246

0,55

0,30

0,22

B66421-U160-K187

B66421-U250-K187

B66421-U315-K187

The A 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

Relationship between

air gap – A value

Calculation of saturation current

K1 (25 °C) K2 (25 °C) K3 (25 °C) K4 (25 °C) K3 (100 °C) K4 (100 °C)

103 – 0,734 154 – 0,796 138 – 0,873

K1, K2: 0,10 mm < s < 1,40 mm

K3, K4: 50 nH < A < 410 nH

N87

Validity range:

512 08/01

12 3

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