L = low range [f
L
to 10 f
L
] M = mid range [10 f
L
to f
U
/2] U= upper range [f
U
/2 to f
U
]
FREQ.
RANGE
(MHz)
ISOLATION
(dB)
INSERTION LOSS (dB)
ABOVE 4.8 dB
PHASE
UNBALANCE
(Degrees)
AMPLITUDE
UNBALANCE
(dB)
f
L
-f
U
L
M
U
L
M
U
L
M
U
L
M
U
Typ. Min Typ. Min Typ. Min Typ. Max. Typ. Max. Typ. Max. Max.
Max.
Max.
Max.
Max.
Max.
1-1000
34
22
27
17
23
15
0.2
0.5
0.4
1.2
1.2
2.0
3
6
10
0.5
0.7
0.9
ZFSC-3-4-75
INSERTION LOSS
4.5
4.9
5.3
5.7
6.1
6.5
0
200
400
600
800
1000
FREQUENCY (MHz)
INSERTION
LOSS
(dB)
S-1(dB)
S-2(dB)
S-3(dB)
ZFSC-3-4-75
ISOLATION
15
20
25
30
35
40
45
0
200
400
600
800
1000
FREQUENCY (MHz)
ISOLATION
(dB)
1-2 (dB)
1-3 (dB)
2-3 (dB)
INTERNET
http://www.minicircuits.com
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661
Distribution Centers NORTH AMERICA 800-654-7949 417-335-5935 Fax 417-335-5945 EUROPE 44-1252-832600 Fax 44-1252-837010
Mini-Circuits
Mini-Circuits ISO 9001 & ISO 14001 Certified
Typical Performance Data
Maximum Ratings
Coaxial Connections
SUMPORT
S
PORT 1
1
PORT 2
2
PORT 3
3
Operating Temperature
-55C to 100C
Storage Temperature
-55C to 100C
Power Input (as a splitter)
1W max.
Internal Dissipation
0.5W max.
Outline Drawing
Outline Dimensions ( )
inch
mm
ZFSC-3-4-75+
ZFSC-3-4-75
electrical schematic
3 Way-0 75 1 to 1000 MHz
Power Splitter/Combiner
REV. A
M104502
ZFSC-3-4-75
HY/TD/CP
060905
Coaxial
A
B
C
D
E
F
G
H
1.25
1.25
.75
.63
.38 1.000
.125 1.000
31.75 31.75 19.05 16.00
9.65 25.40
3.18 25.40
J
K
L
M
N
P
Q
wt
--
--
.125 1.688
2.18
.75
.07 grams
--
--
3.18 42.88 55.37 19.05
1.78
75.0
CASE STYLE: J17
Connectors Model
Price
Qty.
BNC
ZFSC-3-4-75
$59.95 (1-9)
BRACKET (OPTION "B")
$2.50
(1+)
Features
very wideband, 1 to 1000 MHz
low insertion loss, 0.4 dB typ.
good isolation, 27 dB typ.
rugged shielded case
Applications
cellular
instrumentation
communication system
ZFSC-3-4-75
VSWR
1.0
1.2
1.4
1.6
1.8
0
200
400
600
800
1000
FREQUENCY (MHz)
V
S
W
R
#S-VSWR
#1-VSWR
Splitter Electrical Specifications
For option B with N-Type connectors, dimension "C" increases
to 0.94 inches.
+ RoHS compliant in accordance
with EU Directive (2002/95/EC)
The +Suffix identifies RoHS Compliance. See our web site
for RoHS Compliance methodologies and qualifications.
Freq.
(MHz)
Insertion Loss
(dB)
Amp.
Unbal.
(dB)
Isolation
(dB)
Phase
Unbal.
(deg.)
VSWR
S
VSWR
1
VSWR
2
VSWR
3
S-1
S-2
S-3
1-2
1-3
2-3
1.00
5.05
5.05
5.05
0.00
30.83
31.08
29.50
0.03
1.10
1.26
1.27
1.27
4.20
5.00
4.98
5.00
0.02
36.92
36.71
36.08
0.04
1.04
1.14
1.14
1.14
7.00
4.98
4.98
4.98
0.00
37.49
37.09
37.06
0.06
1.03
1.13
1.13
1.13
10.00
4.97
4.97
4.98
0.01
37.49
37.02
37.30
0.04
1.02
1.12
1.12
1.12
127.00
5.04
5.04
5.04
0.00
32.23
32.37
32.81
0.12
1.01
1.11
1.11
1.11
244.00
5.08
5.06
5.08
0.02
28.25
28.57
28.74
0.20
1.02
1.11
1.11
1.11
361.00
5.14
5.10
5.14
0.04
25.73
26.13
26.28
0.46
1.03
1.13
1.12
1.13
440.00
5.17
5.11
5.17
0.06
24.53
24.94
25.09
0.43
1.04
1.16
1.14
1.15
500.00
5.22
5.13
5.21
0.09
23.79
24.25
24.41
0.55
1.06
1.18
1.16
1.18
590.00
5.30
5.18
5.30
0.13
22.91
23.42
23.58
0.59
1.09
1.23
1.20
1.23
710.00
5.41
5.22
5.41
0.19
22.12
22.71
22.92
0.77
1.15
1.31
1.27
1.31
800.00
5.55
5.31
5.54
0.24
21.94
22.67
22.91
0.83
1.21
1.39
1.33
1.39
880.00
5.68
5.38
5.66
0.30
22.17
23.01
23.36
0.87
1.25
1.47
1.40
1.46
960.00
5.85
5.48
5.83
0.37
22.78
23.88
24.33
0.90
1.26
1.55
1.46
1.54
1000.00
5.94
5.54
5.90
0.40
23.07
24.36
24.75
0.84
1.26
1.58
1.49
1.58
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