EPCOS B66413-G-X1 Datasheet

EFD 15/8/5

B66413Core

■ 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)

Σl/A = 2,27 mm

–1

le= 34 mm

= 15 mm

A

e

A

= 12,2 mm

min

Ve= 510 mm

2

2

3

Approx. weight 2,8 g/set

Ungapped

Material A

nH

value

L

µ

e

A

nH

L1min

P

V

W/set

N49 600 + 30/– 20 % 1080 330 < 0,11

(50 mT, 500 kHz, 100 °C)

N87 780 + 30/– 20 % 1400 560 < 0,28

(200 mT, 100 kHz, 100 °C)

Gapped

Material A

value

L

µ

e

nH

N87 100

± 10 % 180 0,17 B66413-U100-K187

± 15 % 288 0,08 B66413-U160-L187

160

g

approx. mm

g

4,65±0,15

Ordering code

B66413-G-X149

B66413-G-X187

Ordering code

15±0,4

5,3±0,15

11±0,35

5,5±0,2

0,2±0,1

FEK0417-2

7,5±0,15

2,4±0,1

The A

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

L

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)

N87 29,7 – 0,676 44,2 – 0,796 33,2 – 0,873

Validity range: K1, K2: 0,10 mm < s < 1,00 mm

K3, K4: 30 nH < A

< 280 nH

L

507 08/01

EFD 15/8/5

B66414Accessories

Coil former

Material: GFR thermosetting plastic; UL 94 V-0, insulation class to IEC 60085:

B66414-B: F max.operating temperature 155 °C; color code green

B66414-W: H max.operating temperature 180 °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 157
Squared pins

Yoke

Material: Stainless spring steel (0,25 mm)

Coil former Ordering code
Sections A

mm

N

2

l

N

mm

A

µΩ

value

R

Pins

1 15,5 35,9 79,7 8 B66414-B1008-D1

B66414-W1008-D1

Yoke (ordering code per piece, 2 are required) B66414-B2000

Coil former Yoke

1

8

Duroplast

Marking of pin 1

10,55

5,55+0,15

1,7

8,3 max.3,5±0,2

15±0,2

_

0,1

6,95

2

7

6

_

0,15

0,45

CuSn6, tinned

43

5

16,5±0,2

2,55

0,2

_

7,5

_

13,75

0,151,6

Mounting holes

8

1

3,75

11,25

_

0,2

10,4

8,85 min.

508 08/01

5

ø1+0,1

4

4

FEK0418-A

15,6

4,4

13,6 min. 1

1

4,8 max.

FEK0271-J

EFD 15/8/5

SMD coil former with J terminals

Material: GFR liquid crystal polymer (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): 350 °C, 1 s
Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 °C, 3,5 s

permissible soldering temperature for wire-wrap connection on coil former: 400 °C, 1 s
Winding: see “Processing Notes”, page 160

Yoke

Material: Stainless spring steel (0,25 mm)
Mounting: Preferred assembly direction from the top

Cover plate

For marking and improved processing on assembly machines.
See under coil former for material and resistance to soldering heat.

B66414Accessories

Sections A

mm

N

2

l

N

mm

A

µΩ

value

R

Terminals Ordering code

1 18,1 35,1 66,7 8 B66414-B6008-T1

2 17,1 35,1 70,5 8 B66414-B6008-T2

Yoke (ordering code per piece, 2 are required) B66414-B2000

Cover plate B66414-A7000

Coil former Yoke

_

0,2515

_

0,2

10,4

0,5±0,05

0,5±0,05

_

0,3

20,8

0,6±0,05

0,2

_

6,4

2

3

4

0,55±0,05

Center flange omitted for one-section version

0,2

_

3,45

81

7

6

3,75

11,25

5

10,6 0,2

5,5+0,2

7,7±0,15

16 0,2

Recommended

Empfehlung für das
Leiterplattenlayout

PCB layout

1,2

2,5

17,7

_

_

7,3 0,1

2,6+0,15

_

3,75

11,25

FEK0329-J

4,4

15,6

Cover plate

Abdeckplatte

0,5 max.

12,8±0,1

13,6 min. 1

1

FEK0187-Y

4,8 max.

FEK0271-J

1,8±0,1

6,6±0,1

509 08/01

Herausgegeben von EPCOS AG
Marketing Kommunikation, Postfach 80 17 09, 81617 München, DEUTSCHLAND

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Published by EPCOS AG
Marketing Communications, P.O. Box 80 17 09, 81617 Munich, GERMANY

 EPCOS AG 2000. All Rights Reserved. Reproduction, publication and dissemination of this bro­chure and the information contained therein without EPCOS’ prior express consent is prohibited.

The information contained in this brochure describes the type of component and shall not be con­sidered as guaranteed characteristics. Purchase orders are subject to the General Conditions for
the Supply of Products and Services of the Electrical and Electronics Industry recommended by the
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
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the type in question please also contact one of our Sales Offices.

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