Coaxial
Power Splitter/Combiner
3 Way-0°
Operating Temperature
Storage Temperature
Power Input (as a splitter)
Internal Dissipation
ZFSC-3-1W+
ZFSC-3-1W
50Ω
-55°C to 100°C
-55°C to 100°C
1W max.
0.5W max.
2 to 750 MHz
Features
• wideband, 2 to 750 MHz
• low insertion loss, 0.5 dB typ.
• high isolation, 30 dB typ.
• rugged shielded case
BNC version shown
Maximum Ratings
Applications
• VHF/UHF
• instrumentation
• communication style
CASE STYLE: J17
Connectors Model
Price
BNC
ZFSC-3-1W+
$53.95
SMA
ZFSC-3-1W-S+
$58.95
N-TYPE
ZFSC-3-1W-N(+)
$58.95
BRACKET (OPTION "B")
$2.50
Qty.
(1-9)
(1-9)
(1-9)
(1+)
Coaxial Connections
SUM PORT
PORT 1
PORT 2
PORT 3
S
1
2
3
+ 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.
Electrical Specifications
FREQ.
RANGE
(MHz)
f
L
-f
U
2-750
ISOLATION
(dB)
INSERTION LOSS (dB)
ABOVE 4.8 dB
PHASE
UNBALANCE
(Degrees)
L
Max.
3.0
M
Max.
5.0
U
Max.
7.0
AMPLITUDE
UNBALANCE
(dB)
L
Max.
0.2
M
Max.
0.3
U
Max.
0.5
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
1.0
1.0
1.6
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
2.00
6.80
16.40
20.00
104.00
188.00
272.00
330.00
375.00
442.50
5.05
4.99
5.00
5.00
5.10
5.18
5.21
5.29
5.42
5.34
5.44
5.45
5.41
5.37
5.38
Amp.
Unbal.
(dB)
1-2
0.00
0.00
0.00
0.01
0.01
0.02
0.04
0.05
0.08
0.10
0.15
0.19
0.22
0.27
0.29
31.97
31.59
31.51
31.49
29.46
26.83
24.83
23.82
23.45
22.89
22.98
23.59
24.60
25.76
26.13
Isolation
(dB)
1-3
32.43
32.02
31.92
31.94
29.98
27.40
25.45
24.48
24.14
23.66
23.90
24.79
26.31
28.49
29.46
Phase VSWR VSWR VSWR VSWR
S
1
2
3
Unbal.
(deg.)
2-3
32.13
31.67
31.59
31.56
29.29
26.51
24.42
23.36
22.97
22.37
22.36
22.87
23.75
24.81
25.26
0.05
0.02
0.03
0.03
0.06
0.11
0.10
0.09
0.15
0.13
0.11
0.16
0.20
0.37
0.46
1.17
1.14
1.13
1.13
1.18
1.26
1.34
1.39
1.42
1.45
1.44
1.39
1.32
1.21
1.15
ZFSC-3-1W
ISOLATION
S-2
5.04
4.99
5.00
5.01
5.10
5.19
5.23
5.31
5.46
5.39
5.53
5.56
5.54
5.53
5.55
S-3
5.04
4.99
5.00
5.01
5.11
5.21
5.25
5.34
5.50
5.44
5.59
5.64
5.63
5.64
5.67
1.15
1.14
1.14
1.14
1.16
1.19
1.23
1.26
1.28
1.30
1.33
1.34
1.33
1.32
1.31
1.15
1.15
1.15
1.15
1.16
1.20
1.24
1.27
1.29
1.32
1.35
1.37
1.38
1.38
1.37
1.15
1.14
1.14
1.14
1.16
1.19
1.23
1.26
1.28
1.31
1.33
1.35
1.36
1.35
1.34
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
532.50
600.00
660.00
720.00
750.00
INSERTION LOSS (dB)
L
M
N
P
.125 1.688
2.18
.75
3.18 42.88 55.37 19.05
ZFSC-3-1W
INSERTION LOSS
6.5
S-1(dB)
S-2(dB)
S-3(dB)
40
1-2 (dB)
ISOLATION (dB)
35
30
25
20
0
150
300
450
600
750
1-3 (dB)
2-3 (dB)
6.0
5.5
5.0
4.5
FREQUENCY (MHz)
For option B with N-Type connectors, dimension "C" increases
to 0.94 inches.
0
150
300
450
600
750
FREQUENCY (MHz)
ZFSC-3-1W
VSWR
2.0
#S-VSWR
1.8
VSWR
1.6
1.4
1.2
1.0
0
150
300
450
600
750
FREQUENCY (MHz)
#1-VSWR
electrical schematic
Mini-Circuits
ISO 9001 ISO 14001
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RF/IF MICROWAVE COMPONENTS
®
EW
ALL N
minicircuits.com
REV. B
M113397
ZFSC-3-1W
HY/TD/CP
080228
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