Website: http://www.belfuse.com

defining a degree of excellence

T1CARRIERINTERFACETRANSFORMERS

T1/CEPT Telecom Line Interface Applications

TM0006

Bel provides transformer magnetics in several

package and schematic variations for T1/CEPT

Telecom Line Interface Applications. Bel's high

quality semi-automated processes provide

superior single small form, and standard dual

* 2000 Vrms Isolation.

* Primary Inductance is 1.20mH

minimum.

* Primary DCR is 0.80 ohms

maximum.

* Custom designs available

upon request.

A553-0013-00

A553-0013-01

A553-0013-03

A553-0013-05

A553-0013-06

A553-0013-07

A553-0013-08

0553-0013-IC

0553-0013-AC

0553-0013-BC

0553-0013-HC

0553-0013-1J

0553-0013-2J

0553-0013-4J

0553-0013-RC

0553-0013-SC

0553-1167-00

0.80

1.8/0.80

0.80/0.80

0.80/0.80/1.8

1.8/1.8

0.80/1.8

0.80/1.8

0.80

0.80

0.80

1.8

1.8/1.8

1.8/0.80

1.8/0.8

0.80

0.80

0.80/1.8

16 Topper

14 Topper

14 Topper

14 Topper

14 Topper

14 Topper

14 Topper

6 "T" Topper

6 "T" Topper

6 "T" Topper

6 "T" Topper

14 DIL

14 DIL

14 DIL

6 "T" Topper

6 "T" Topper

14 DIL

A

B

C

C

C

C

C

E

F

G

K

C

D

B

G

E

C

Part

Number

Turns

Ratio

(+/- 5%)

Leakage

Inductance

L

L

(uH) Max

Coupling

Capacitance

C

ww

(pF) Max

Sec

DCR

(ohms)

Max

#Pins

on

Package

and Style

0.80/0.50

0.80/0.50

0.80/0.50

0.50/0.50/0.80

0.80/0.80

0.50/0.80

0.80/0.80

0.50

0.50

0.50

0.80

0.80/0.80

0.80/0.80

0.80/0.50

0.50

0.80

0.50/0.60

35

35

35

50

35

35

35

35

35

35

35

35

35

35

35

35

35/40

Schem.

1:1.385CT/1:1:1

1CT:2CT/1:1

1:1.385CT/1:1CT

Pins (1-2):(14:12) 1:1

(1-3):(14:12) 1.25:1

(5-7):(10:8) 1:2CT

1:2CT/1:2CT

1:1.15CT/1:2CT

1:1:1.266/1:2CT

1:1:1

1:1

1CT:1

1CT:2CT

1:2CT/1:2CT

1:2CT/1:1.36

1CT:2CT/1:1

1:1.15CT

1:1:1.266

1:1:1.266/1:2CT

Schematic and Mechanical information for the above components

are located on the facing page.

T105