RHOMBUS-IND T

Modem Coupling and Voiceband Transformers
Low Distortion
Schematic
"C"
Frequency Range:
300Hz to 3500Hz
Isolation is
1500VRMS Min.
PRI
Designed to
meet FCC part 68
Low Profile Package
1A
Custom Designs
Available
2A
Schematic
"D"
SEC
3A
5A
4A
6A
1B
5B
2B
6B
1A
5A
2A
6A
1B
5B
2B
6B
3B
4B
Electrical Specifications at 25OC
Parameter
T-31107
T-31108
Units
600
365
600
470
Ω
Ω
1:1
1:1
maximum
80
80
mA
PRI. + 10%
SEC. + 10%
95
180
95
180
Ω
Ω
Insertion Loss
max., ref. 1 kHz
2.0
2.1
dB
Return Loss
min., @ 300 Hz
15
26
dB
Longitudinal Balance
min., 200Hz to 4kHz
60
60
dB
Frequency Response
300 Hz to 3.5 kHz
+ 0.25
+ 0.25
dB
minimum
1500
1500
VRMS
C
D
Impedance
R Load
PRI.
SEC.
Turns Ratio
Direct Current in Pri. (DCI)
DC Resistance
Isolation
Schematic Style
.525
(13.34)
TYP.
1.65
(40.64)
2
4
1.20
(30.48)
1
6
5
5
6
3
Split-Bobbin Style
Package
3
Coil B
Coil A
4
2
1
.250
(5.72)
.200
(5.08)
TYP
1.025
(26.04)
Specifications subject to change without notice.
Rhombus
Industries Inc.
.250" x 2 Equal
Spacing
.200" X 8 Equal
Spacing
For other values & Custom Designs, contact factory.
7
COUPLNG3 - 11/98
15801 Chemical Lane, Huntington Beach, CA 92649-1595
Tel: (714) 898-0960 • Fax: (714) 896-0971