Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel: 201-432-0463 • Fax: 201-432-9542 • E-Mail: BelFuse@belfuse.com
Website: http://www.belfuse.com
defining a degree of excellence
T1 CARRIER INTERFACE TRANSFORMERS
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
transformers.
* 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
ELECTRICALS @ 25
o
C
#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
