Self-Shielded
Audio Transformers
Using EP Geometry cores,
these transformers provide
excellent shielding.
Isolation is 1500 Vrms minimum
Longitudinal Balance is 60dB min.
Frequency range: 300Hz to 3400Hz
Electrical Specifications at 25
O
C
Surface Mount
Impedance
EP7 Style
(Ohms)
Part Number
T-30400G
600 / 600
UNBAL. Insertion Frequency
Response
DC
Loss
(dB)
(mA)
(dB)
(1)
0.0
0.7
0.50
Return
Loss
(dB)
(2)
18
Pri.
Sec.
DCR max. DCR max.
(Ω )
(Ω )
31
39
Electrical Specifications at 25
O
C
Surface Mount
Impedance
EP10 Style
(Ohms)
Part Number
T-30401G
600 / 600
UNBAL. Insertion Frequency
Response
DC
Loss
(1)
(dB)
(mA)
(dB)
0.0
0.9
0.50
Return
Loss
(dB)
(2)
21
Pri.
Sec.
DCR max. DCR max.
(Ω )
(Ω )
34
43
Electrical Specifications at 25
O
C
Surface Mount
Impedance
EP13 Style
(Ohms)
Part Number
T-30402G
T-30403G
Dimensions
in Inches (mm)
.370
(9.40)
MAX.
.375
(9.53)
MAX.
.375
(9.53)
MAX.
.025
(0.64)
.34
(8.6)
.098
(2.50)
.028
(0.70)
.505 (12.83)
.490 (12.45)
UNBAL. Insertion Frequency
Response
DC
Loss
(dB)
(mA)
(dB)
(1)
0.0
0.0
1.0
1.0
0.25
0.25
Return
Loss
(dB)
(2)
26
26
Pri.
Sec.
DCR max. DCR max.
(Ω )
(Ω )
36
44
47
58
600 / 600
900 / 900
1. Insertion Loss measured at 1 kHz.
2. Return Loss measured at 300 Hz.
T-30400G
Schematic
1
4
1
T-30401G
Schematic
5
2
T-30402 & 30403G
Schematic
7
EP7 Style
Surface Mount
PRI
SEC.
PRI
SEC.
PRI
SEC.
3
6
4
8
4
9
.432
(10.97)
MAX.
.492
(12.5)
.465 MAX.
(11.8)
MAX.
.522
(13.26)
MAX.
.532
(13.51)
MAX.
.516
(13.1)
MAX.
.469
(11.9)
MAX.
.413
(10.5)
.575 (14.6)
.567 (14.4)
EP10 Style
Surface Mount
EP13 Style
Surface Mount
.025
(0.64)
.098
(2.50)
.028
(0.70)
.100
(2.54)
.028
(0.70)
.025
(0.64)
.516
(13.1)
.675 (17.15)
.663 (16.85)
.525
(13.34)
6
5
4
.594
(15.10)
1
2
3
.715
(18.15)
1
2
3
4
EP7 SM
Suggested
Pad Layout
.100
(2.54)
TYP.
.050
(1.27)
TYP.
8
7
6
5
EP10 SM
.100
(2.54)
TYP.
10
9
8
EP13 SM
1
2
3
4
5
Suggested
Pad Layout
.100
(2.54)
TYP.
Suggested
Pad Layout
.050
(1.27)
TYP.
7
6
.075
(1.905)
TYP.
.050
(1.27)
TYP.
.100
(2.54)
TYP.
For other values & Custom Designs, contact factory.
.100
(2.54)
TYP.
EP - 10/98
Specifications subject to change without notice.
Rhombus
Industries Inc.
16
15801 Chemical Lane, Huntington Beach, CA 92649-1595
Tel: (714) 898-0960
•
Fax: (714) 896-0971
RHOMBUS-IND [ Rhombus Industries Inc. ]
