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

TM00118

T1-41

ELECTRICAL SPECIFICATIONS AT 25° C

SCHEMATIC

•

Operates as a line-interface pulse transformer in

DS1 and CEPT applications

•

Contains specific interwinding insulation to mini-

mize capacitance

•

Winding (3-2)(2-1) is highly balanced

•

Designed for automatic machine placement into

printed wiring boards

•

Only difference between the 2745AF and 2745AF2

is the terminal length

HIGH FREQUENCY MAGNETICS

T1/E1 Through Hole Transformers

2745AF

2745AF2

t

r

a

P

r

e

b

m

u

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

x

a

m

e

c

n

a

t

c

u

d

n

I

e

g

a

k

a

e

L

2

x

a

m

H

µ

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

m

u

m

i

n

I

M

g

n

i

d

n

i

w

r

e

t

n

I

n

w

o

d

k

a

e

r

B

e

g

a

t

l

o

V

s

m

r

V

)

6

-

4

(

:

)

1

-

3

(

)

1

-

3

(

)

1

-

3

(

)

6

-

4

(

)

1

-

3

(

)

6

-

4

(

d

n

a

)

1

-

3

(

F

A

5

4

7

2T

C

2

:

T

C

15

1

.

35

5

.

15

1

.

30

.

33

20

0

0

1

2

F

A

5

4

7

2T

C

2

:

T

C

15

1

.

35

5

.

15

1

.

30

.

33

20

0

0

1

V

1

.

0

,

z

H

k

9

1

t

a

d

e

r

u

s

a

e

m

.

1

d

e

t

r

o

h

s

)

6

-

4

(

h

t

i

w

,

z

H

k

0

0

1

t

a

d

e

r

u

s

a

e

m

.

2

3

2

CT

1

1 CT : 2 CT

4

CT

5

6

•

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

e

s

n

o

p

s

e

R

e

m

i

T

d

n

a

y

c

n

e

u

q

e

r

F

l

a

c

i

p

y

T

g

n

i

t

a

n

i

m

r

e

T

s

e

c

n

a

d

e

p

m

I

h

t

d

i

w

d

n

a

B

)

B

d

3

(

e

m

i

t

e

s

i

R

t

o

o

h

s

r

e

v

O

p

o

o

r

D

)

e

s

l

u

p

s

n

0

5

3

(

0

0

1

Ω

0

0

4

:

Ω

z

H

M

1

2

-

z

H

k

2s

n

7

1%

0%

5

.

0