Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

ADSL MAGNETICS

©1999 Bel Fuse Inc. Specifications subject to change without notice. 06.99

TM9957

T514

Through Hole Transformers

SCHEMATICS

ELECTRICAL SPECIFICATIONS at 25° C

•

2718AF2 and 2718AH2 operate over the frequency

range from 1kHz to 1.1MHz

•

2718BK2 operates over the frequency range from

500Hz to 1.1MHz

•

Designed for broadband applications

•

Minimum interwinding breakdown voltage of 1500 Vrms

•

Qualified per Bellcore TR-TSY-000357-1

‘S’ denotes an

electrostatic shield.

2718AF2

2718AH2

2718BK2

1

10

2

9

4

7

5

6

Primary

Secondary

S

8

1

10

2

9

4

7

5

6

Primary

Secondary

1

3

2

4

10

8

9

7

Primary

Secondary

r

e

b

m

u

N

t

r

a

P

o

i

t

a

R

s

n

r

u

T

%

3

±

y

r

a

m

i

r

P

e

c

n

a

t

c

u

d

n

I

n

i

m

H

m

R

C

D

Ω

Ω

Ω

Ω

Ω

x

a

m

s

s

o

L

n

o

i

t

r

e

s

n

I

p

y

t

B

d

y

c

n

e

u

q

e

r

F

e

s

n

o

p

s

e

R

B

d

g

n

i

d

n

i

w

r

e

t

n

I

e

c

n

a

t

i

c

a

p

a

C

x

a

m

F

p

c

e

S

:

i

r

P

i

r

P

c

e

S

z

H

k

1

z

H

M

1

2

F

A

8

1

7

20

.

1

:

0

.

15

.

5

20

8

.

20

3

.

20

2

.

00

5

.

00

5

.

0*

0

.

7

2

H

A

8

1

7

20

.

1

:

0

.

15

.

5

20

8

.

20

3

.

20

2

.

00

5

.

00

5

.

00

.

0

1

2

K

B

8

1

7

20

.

1

:

0

.

10

.

1

10

5

.

10

5

.

1A

/

NA

/

NA

/

N0

3

d

e

d

n

u

o

r

g

8

l

a

n

i

m

r

e

T

*