Coaxial
Power Splitter/Combiner
ZFSC-2-1-75+
2 Way-0° 75Ω
0.25 to 300 MHz
Maximum Ratings
Features
• low insertion loss, 0.4 dB typ.
Operating Temperature
Storage Temperature
Power Input (as a splitter)
Internal Dissipation
-55°C to 100°C
CASE STYLE: K18
Connectors Model
• high isolation, 30 dB typ.
-55°C to 100°C
1W max.
• excellent amplitude unbalance, 0.1 dB typ.
• excellent phase unbalance, 0.2 deg. typ.
• very good return loss, VSWR, 1.15:1 typ.
• rugged shielded case
BNC
ZFSC-2-1-75+
BRACKET (OPTION "B")
0.125W max.
+RoHS Compliant
Coaxial Connections
SUM PORT
The +Suffix identifies RoHS Compliance. See our web site
for RoHS Compliance methodologies and qualifications
Applications
• HF/VHF
• amateur fan radio
• communication systems
3
1
2
PORT 1
PORT 2
Electrical Specifications
FREQ.
RANGE
(MHz)
ISOLATION
(dB)
INSERTION LOSS (dB)
ABOVE 3.0 dB
PHASE
UNBALANCE
(Degrees)
AMPLITUDE
UNBALANCE
(dB)
L
M
U
L
M
U
L
M
Max.
3
U
L
M
U
Outline Drawing
fL-fU
Typ. Min. Typ. Min. Typ. Min. Typ. Max. Typ. Max. Typ. Max. Max.
20 15 30 25 25 20 0.4 0.75 0.4 0.75 0.4 1.0
M = mid range [10 fL to fU/2] U= upper range [fU/2 to fU]
Max.
5
Max.
0.15
Max.
0.2
Max.
0.3
0.25-300
2
L = low range [fL to 10 fL]
Typical Performance Data
Frequency
(MHz)
Total Loss1
(dB)
Amplitude
Unbalance
(dB)
Isolation
(dB)
Phase
Unbalance
(deg.)
VSWR
S
VSWR
1
VSWR
2
S-1
S-2
0.25
1.10
1.80
2.50
6.00
3.23
3.20
3.18
3.17
3.15
3.23
3.20
3.18
3.17
3.15
0.00
0.00
0.00
0.01
0.00
19.70
32.56
34.82
35.51
36.11
0.01
0.02
0.02
0.02
0.00
1.18
1.10
1.10
1.10
1.10
1.49
1.17
1.15
1.14
1.12
1.49
1.17
1.15
1.14
1.12
9.00
38.00
94.00
150.00
194.00
3.17
3.19
3.21
3.22
3.25
3.16
3.18
3.21
3.23
3.26
0.01
0.01
0.01
0.01
0.01
36.18
35.33
32.50
29.91
28.27
0.08
0.06
0.01
0.12
0.12
1.10
1.10
1.10
1.12
1.12
1.12
1.11
1.12
1.12
1.13
1.11
1.11
1.12
1.12
1.13
inch
Outline Dimensions (
)
238.00
270.00
280.00
290.00
300.00
3.24
3.26
3.25
3.25
3.27
3.26
3.29
3.29
3.29
3.31
0.02
0.02
0.03
0.04
0.04
26.88
26.03
25.76
25.53
25.30
0.18
0.10
0.07
0.14
0.12
1.13
1.14
1.14
1.14
1.14
1.15
1.15
1.15
1.15
1.16
1.14
1.15
1.15
1.15
1.16
mm
A
1.25
B
C
D
E
F
G
H
1.25
.75
.63
.38
1.00
.125 1.000
3.18 25.40
31.75 31.75 19.05 16.00
9.65 25.40
1. Total Loss = Insertion Loss + 3dB splitter loss.
J
--
--
K
--
--
L
M
N
2.18
P
.75
Q
wt
.07 grams
1.78 70.0
ZFSC-2-1-75+
ISOLATION
ZFSC-2-1-75+
TOTAL LOSS
.125 1.688
3.18 42.88 55.37 19.05
40
3.5
S-1(dB)
S-2(dB)
35
30
25
20
15
3.4
3.3
3.2
3.1
3.0
0
50
100
150
200
250
300
0
50
100
150
200
250
300
FREQUENCY (MHz)
ZFSC-2-1-75+
VSWR
FREQUENCY (MHz)
1.50
1.40
1.30
1.20
1.10
1.00
electrical schematic
#S-VSWR
#1-VSWR
#2-VSWR
0
50
100
150
200
250
300
FREQUENCY (MHz)
Notes
A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document.
B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions.
C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled
to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp
REV. D
M151107
ZFSC-2-1-75+
HY/TD/CP/AM
151021
®
Mini-Circuits
www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com