Rhombus
Transformers & Magnetic Products
Industries Inc.
15801 Chemical Lane, Huntington Beach, CA 92649
Phone: (714) 898-0960
FAX: (714) 896-0971
www.rhombus-ind.com
PARAMETER
UNITS
(1)
Inductance
85.0 Min.
H
(1)
Leakage Inductance
0.25 Max.
H
(1)
Interwinding Capacitance
12 Max.
pF
Primary DC Resistance
0.30 Max.
Isolation (HI-POT)
500 Min.
V
RMS
SRF (Ref.)
20
MHz
Insulation Resistance
10k Min.
M
Power Rating
250
mW
Crosstalk 60 dB @ 5 MHz Nominal
50 dB @ 10 MHz Nominal
Longitudinal Conversion Loss
0 - 300KHz 56 dB Min.
300 KHz - 500KHz 52 db Min.
500 KHz - 1MHz 46 dB Min.
1MHz - 5 MHz 36 db Min.
Operating Temperature Range -40
O
C TO +85
O
C
Storage Temperature Range -55
O
C TO +125
O
C
1/25/01
High Frequency
Data Line Filter
3 Coils 6 Data Lines
Schematic Diagram
F-129G
Turns ratio 1:1 + 0%
Current Rating: 100mA
1
Tested at 100KHz and 500 mV
RMS
.400 (10.16)
.430 (10.92)
.285
(7.24)
MAX.
.010
(0.25)
TYP.
.008 R
(0.20)
.030
(0.76)
TYP.
.205
(5.21)
MAX.
.015
(0.38)
TYP.
.050
(1.27)
TYP.
.020
(0.51)
TYP.
.100
(2.54)
TYP.
.885
(22.48)
MAX.
Dimensions in inches (mm)
Rhombus
Transformers & Magnetic Products
Industries Inc.
15801 Chemical Lane, Huntington Beach, CA 92649
Phone: (714) 898-0960
FAX: (714) 896-0971
www.rhombus-ind.com
7/29/97
High Frequency
Data Line Filter:
P/N F-129G
C
r
o
sst
a
l
k
(
d
B
)
- 40
Frequency
10 MHz
1 MHz
- 50
- 60
- 70
- 80
1000
2000
Frequency
(
)
Impe
d
a
n
c
e
500 MHz
1 MHz
1500
3000
3500
2500
500
Impedance
Crosstalk
Rhombus
Transformers & Magnetic Products
Industries Inc.
15801 Chemical Lane, Huntington Beach, CA 92649
Phone: (714) 898-0960
FAX: (714) 896-0971
www.rhombus-ind.com
D.U.T = F-129G
20 Log E
L
/E
Tr
Resistors Matched to within 0.03%
R1 + R2 = 67.5
R3 + R4 = 67.5
Longitudinal Conversion Loss
20 Log V/E
Crosstalk
Sine Wave 2V
RMS
up to 10MHz
R
S
= 50
R
L
= 135
D.U.T = F-129G
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