Single T1/CEPT
Transformers
(Small
Footprint)
For T1/CEPT Telecom Applications
Designed to meet CCITT & FCC Requirements
1500 VRMS Minimum Isolation
Electrical Specifications
Thru-hole
Part
Number
1
A
B
C
D
E
F
G
H
at 25
O
C
Turns
Ratio
(
+
5%)
OCL
min.
( mH )
PRI-SEC
C
W/W
max.
( pF )
Leakage
L
L
max.
(
µH
)
Pri. DCR
max.
(Ω )
Sec. DCR
max.
(Ω )
Schem.
Style
Primary
Pins
SMD
Part
Number
T-14700
T-14701
T-14702
T-14703
T-14704
T-14705
T-14706
T-14707
T-14708
T-14709
T-14710
T-14711
T-14712
T-14713
T-14714
T-14715
T-14716
T-14717
T-14718
T-14719
T-14720
T-14721
T-14722
T-14723
T-14724
T-14725
T-14726
T-14725
T-14726
T-14727
T-14728
T-14729
T-14700G
T-14701G
T-14702G
T-14703G
T-14704G
T-14705G
T-14706G
T-14707G
T-14708G
T-14709G
T-14710G
T-14711G
T-14712G
T-14713G
T-14714G
T-14715G
T-14716G
T-14717G
T-14718G
T-14719G
T-14720G
T-14721G
T-14722G
T-14723G
T-14724G
T-14725G
T-14726G
T-14725G
T-14726G
T-14727G
T-14728G
T-14729G
1:1:1
1:1:1
1CT:3CT
1:1
1:1CT
1CT:1
1:1.26CT
1CT:2CT
2CT:1CT
2.53CT:1
1:1.36
1:1:1
1:2CT
1:2CT
1:4CT
1:1.14CT
1:0.575:0.575
1:1 / 1.26
(2)
1:0.5:0.5
1:0.633:0.633
1:2.3CT
1:1.36CT
1CT:1CT
1:1.15CT
1CT:2CT
1:1
1.37:1
1CT:1
1:1.36
1CT:2CT
1:1.15CT
1:1:1.266
1.2
2.0
1.2
1.2
0.06
1.2
0.06
1.2
2.0
2.0
1.5
1.2
1.2
2.0
0.5
1.5
1.5
1.5
1.5
1.5
1.2
1.5
1.2
1.2
1.2
1.2
1.2
1.2
1.5
1.5
1.2
1.5
50
40
50
30
23
25
25
30
45
25
40
50
50
45
40
40
25
35
25
20
50
40
50
50
50
30
40
50
50
35
50
45
0.5
0.5
0.5
0.5
.75
0.8
0.75
0.55
0.6
1.5
0.5
0.5
0.5
0.8
1.0
0.5
0.8
0.4
1.2
1.1
0.8
0.5
0.8
0.5
0.8
0.5
0.5
0.8
0.5
0.8
0.5
0.4
0.8
0.7
0.7
0.7
0.6
0.7
0.6
0.7
1.0
1.0
0.7
0.8
1
2
0.5
0.7
0.7
0.7
0.7
0.7
0.8
0.7
0.8
0.8
0.8
0.7
0.8
0.8
0.7
0.7
0.8
0.7
0.8
0.7
1.6
0.7
0.6
0.7
0.6
1.1
0.7
0.7
1.0
0.8
1.4
2.4
1.5
0.9
0.5
0.9
0.5
0.5
1.8
1.0
0.8
0.8
1.8
0.7
0.7
0.8
0.9
1.4
0.8
0.9
A
A
C
B
E
E
E
C
C
E
B
A
E
E
D
D
A
E
A
A
D
D
C
E
C
F
F
H
F
G
H
A
1-5
2-6
1-5
2-6
1-5
1-5
1-5
5-6
2-6
2-6
1-5
1-5
5-6
2-6
(3)
5-6
5-6
1-5
1-5
2-6
2-6
1-5
1-5
1-5
1-5
2-6
1-2
1. OCL Measured across Primary @ 100 kHz & 20mV
2. T-10717: Sec. = Pins 3-5 for 75Ω, Sec. = Pins 1-5 for 120Ω.
Physical Dimensions
inches (mm)
Thru-hole
Package for
T-147XX
SMD
Package for
T-147XXG
Specifications subject to change without notice.
For other values & Custom Designs, contact factory.
T1-D3 - 9/97
Rhombus
Industries Inc.
5
15801 Chemical Lane, Huntington Beach, CA 92649-1595
Tel: (714) 898-0960
•
Fax: (714) 896-0971
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