Coaxial
Power Splitter/Combiner
3 Way-0°
Operating Temperature
Storage Temperature
Power Input (as a splitter)
Internal Dissipation
ZFSC-3-1+
ZFSC-3-1
BNC version shown
50Ω
-55°C to 100°C
-55°C to 100°C
1W max.
0.375W max.
1 to 500 MHz
Features
• wideband, 1 to 500 MHz
• low insertion loss, 0.5 dB typ.
• high isolation, 30 dB typ.
• rugged, shielded case
CASE STYLE: J17
Connectors Model
Price
BNC
ZFSC-3-1(+)
$51.95
SMA
ZFSC-3-1-S(+)
$56.95
N-TYPE
ZFSC-3-1-N(+)
$56.95
BRACKET (OPTION "B")
$2.50
Qty.
(1-9)
(1-9)
(1-9)
(1+)
Maximum Ratings
Applications
Coaxial Connections
SUM PORT
PORT 1
PORT 2
PORT 3
S
1
2
3
• VHF/UHF
• instrumentation
• communication system
+ 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.
Splitter Electrical Specifications
FREQ.
RANGE
(MHz)
f
L
-f
U
1-500
ISOLATION
(dB)
INSERTION LOSS (dB)
ABOVE 4.8 dB
PHASE
UNBALANCE
(Degrees)
L
Max.
2.0
M
Max.
3.0
U
Max.
4.0
AMPLITUDE
UNBALANCE
(dB)
L
Max.
0.2
M
Max.
0.3
U
Max.
0.4
Outline Drawing
L
M
U
L
M
U
Typ. Min. Typ. Min. Typ. Min. Typ. Max. Typ. Max. Typ. Max.
30
20
30
20
25
18
0.4
0.75
0.5
0.9
0.8
1.2
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
]
Typical Performance Data
Freq.
(MHz)
Insertion Loss
(dB)
S-1
1.00
4.20
7.00
10.00
67.00
124.00
181.00
220.00
250.00
310.00
5.02
5.01
5.02
5.02
5.09
5.16
5.25
5.24
5.28
5.33
5.46
5.57
5.57
5.55
5.60
Amp.
Unbal.
(dB)
1-2
0.00
0.01
0.00
0.01
0.01
0.01
0.02
0.03
0.06
0.08
0.14
0.20
0.22
0.27
0.29
35.42
35.93
36.31
36.50
33.88
30.45
28.12
26.92
26.28
25.41
25.38
25.97
26.08
26.00
25.91
Isolation
(dB)
1-3
35.35
35.81
36.18
36.38
34.07
30.83
28.54
27.33
26.69
25.80
25.74
26.51
26.78
26.98
27.09
Phase VSWR VSWR VSWR VSWR
S
1
2
3
Unbal.
(deg.)
2-3
35.32
36.47
36.81
36.98
33.28
29.38
26.82
25.52
24.76
23.71
23.33
23.79
24.04
24.29
24.49
0.03
0.03
0.07
0.10
0.56
1.09
1.49
1.71
1.91
2.16
2.50
2.80
3.14
3.41
3.49
1.11
1.06
1.05
1.05
1.07
1.13
1.18
1.21
1.23
1.26
1.26
1.24
1.23
1.22
1.22
ZFSC-3-1
ISOLATION
S-2
5.02
5.02
5.02
5.02
5.09
5.15
5.22
5.22
5.23
5.25
5.33
5.37
5.35
5.28
5.31
S-3
5.02
5.01
5.01
5.03
5.10
5.16
5.25
5.25
5.26
5.30
5.42
5.50
5.49
5.43
5.47
1.15
1.07
1.06
1.06
1.06
1.07
1.08
1.09
1.09
1.10
1.12
1.13
1.13
1.14
1.14
1.15
1.07
1.06
1.06
1.06
1.08
1.09
1.10
1.11
1.12
1.13
1.12
1.12
1.12
1.12
1.15
1.07
1.06
1.06
1.07
1.08
1.10
1.11
1.12
1.15
1.17
1.19
1.19
1.19
1.19
Outline Dimensions (
inch
)
mm
A
B
C
D
1.25
1.25
.75
.63
31.75 31.75 19.05 16.00
J
--
--
K
--
--
E
F
.38 1.000
9.65 25.40
G
H
.125 1.000
3.18 25.40
Q
wt
.07 grams
1.78
75.0
390.00
450.00
470.00
490.00
500.00
INSERTION LOSS (dB)
L
M
N
P
.125 1.688
2.18
.75
3.18 42.88 55.37 19.05
ZFSC-3-1
INSERTION LOSS
6.0
S-1(dB)
S-2(dB)
S-3(dB)
50
1-2 (dB)
1-3 (dB)
2-3 (dB)
For option B with N-Type connectors, dimension "C" increases
to 0.94 inches.
ISOLATION (dB)
0
100
200
300
400
500
5.8
5.6
5.4
5.2
5.0
FREQUENCY (MHz)
44
38
32
26
20
0
100
200
300
400
500
FREQUENCY (MHz)
ZFSC-3-1
VSWR
1.5
1.4
VSWR
1.3
1.2
1.1
1.0
0
100
200
300
400
500
FREQUENCY (MHz)
#S-VSWR
#1-VSWR
electrical schematic
Mini-Circuits
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®
minicircuits.com
REV. A
M107048
ZFSC-3-1
HY/TD/CP/AM
070220
EW
ALL N
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