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

©2000 Bel Fuse Inc. Specifications subject to change without notice. 09.00

TM00128

T1-63

ELECTRICAL SPECIFICATIONS AT 25° C

SCHEMATIC

•

Designed to operate at the DS1 rate of 1.544 Mbits/s

as a line interface transformer

•

Only difference between 2745F and 2745F2 is the

terminal length

•

Winding (3-1) can handle a 6 A surge current for 1

second

•

Designed for remote powering with simplex-feed

current

HIGH FREQUENCY MAGNETICS

T1/E1 Through Hole Hardened Transformers

2745F

2745F2

3

1

2

6

4

1 CT : 2

CT

r

e

b

m

u

N

t

r

a

P

l

a

n

i

m

o

N

o

i

t

a

R

s

n

r

u

T

%

2

±

e

c

n

a

t

c

u

d

n

I

1

n

i

M

H

m

R

C

D

Ω

Ω

Ω

Ω

Ω

e

g

a

k

a

e

L

e

c

n

a

t

c

u

d

n

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x

a

m

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µ

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u

m

i

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g

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d

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w

r

e

t

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d

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)

1

-

3

(

)

6

-

4

(

)

4

-

6

(

:

)

1

-

3

(

)

1

-

3

(

x

a

m

n

i

m

x

a

m

n

i

m

)

1

-

3

(

F

5

4

7

22

:

T

C

15

1

.

35

6

.

02

4

.

02

.

53

.

47

.

10

5

8

2

F

5

4

7

22

:

T

C

15

1

.

35

6

.

02

4

.

02

.

53

.

47

.

10

5

8

c

a

V

1

.

0

,

z

H

k

0

1

t

a

d

e

r

u

s

a

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m

.

1

•

Operating temperature range: -40° C to +85° C

•

Meets IEC 695, 2-2 flammability requirements

•

PWB Process Capability: standard printed wiring board

assembly techniques, total-immersion cleaning

•

Reliability testing: Shock, vibration, temperature cycling,

temperature - humidity - bias