B66418-B1008-D1 Epcos, B66418-B1008-D1 Datasheet

B66418-B1008-D1

Manufacturer Part Number

B66418-B1008-D1

Description

EFD 20/10/7 Core

Manufacturer

Epcos

Datasheet

1.B66418-B1008-D1.pdf (3 pages)

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Magnetic characteristics (per set)

Approx. weight 7,2 g/set

Ungapped

Material

N49

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:

l/A = 1,52 mm

min

EFD 20/10/7

Core

E core with flattened, lower center leg

for especially flat transformer design

For DC/DC converters

EFD cores are supplied as single units

= 47 mm

= 31 mm

= 1 460 mm

value in the table applies to a core set comprising one ungapped core (dimension g = 0) and

1200 + 30/– 20 % 1440 660

100

160

910 + 30/– 20 % 1100 750

value

Relationship between

air gap – A

K1 (25 °C)

61,1

–1

10 %

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

K3, K4: 50 nH < A

value

K2 (25 °C)

– 0,699

120

193

L1min

< 410 nH

Calculation of saturation current

K3 (25 °C)

85,4

W/set

< 0,29

(50 mT, 500 kHz, 100 °C)

< 1,05

(200 mT, 100 kHz, 100 °C)

510

approx. mm

0,49

0,25

08/01

K4 (25 °C)

– 0,796

K3 (100 °C) K4 (100 °C)

75,7

Ordering code

B66417-G-X149

B66417-G-X187

Ordering code

B66417-U100-K187

B66417-U160-K187

– 0,873

B66417

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B66418-B1008-D1 Summary of contents

Page 1

EFD 20/10/7 Core I E core with flattened, lower center leg for especially flat transformer design I For DC/DC converters I EFD cores are supplied as single units Magnetic characteristics (per set) –1 l ...

Page 2

... Duroplast Markierung für Stift 1 Marking of pin 1 _ 14,8 0,2 9,2+0,1 0,45 CuSn6, verzinnt CuSn6, tinned Ordering code A value Pins R 49,2 8 B66418-B1008-D1 B66418-W1008-D1 B66418-B2000 Yoke Mounting holes Montagelochung 8 5 ø1,3+0 14,8 0,2 13,2 min. FEK0210-2 511 08/01 B66418 View A Ansicht A 5,1 6,3 max. A FEK0274-8 ...

Page 3

... 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 ...

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