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
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Typical Performance Data
Directional Coupler Electrical Specications (TAMB= 25°C)
Maximum Ratings
Coaxial Connections
Features
• VHF/UHF
• instrumentation
• communications receivers & transmitters
• cable tv
INPUT 1
OUTPUT 2
COUPLED 3
• very at coupling
• very broad, multi-octave
• all welded construction
• protected by U.S Patents 6,140,887 & 6,784,521
& 6,790,049
Applications
Operating Temperature -40°C to 85°C
Storage Temperature -55°C to 100°C
Outline Drawing
Outline Dimensions ( )
inch
mm
ZX30-20-4
MAINLINE LOSS
0.0
0.4
0.8
1.2
0 200 400 600 800 1000
FREQUENCY (MHz)
MAINLINE LOSS (dB)
at RF level of -10 dBm
ZX30-20-4
COUPLING & DIRECTIVITY
0
10
20
30
40
50
60
0 200 400 600 800 1000
FREQUENCY (MHz)
COUPLING & DIRECTIVITY
(dB)
COUPLING DIRECTIVITY
at RF level of -10 dBm
ZX30-20-4+
ZX30-20-4
ZX30-20-4
RETURN LOSS
10
20
30
40
50
60
0 200 400 600 800 1000
FREQUENCY (MHz)
RETURN LOSS (dB)
IN OUT CPL
at RF level of -10 dBm
50Ω 5 to 1000 MHz
Directional Coupler
REV. G
M119986
ED-10213A/5
ZX30-20-4
WZ/TD/CP/AM
131015
Coaxial
A
B
C
D
E
F
G
.74
.90
.54
.50
.04
.16
.29
18.80 22.86 13.72 12.70 1.02 4.06 7.37
J
K
L
M
N
wt
.37
--
.122
.496
.106
.122
grams
9.40 -- 3.10 12.60 2.69 3.10
20.0
CASE STYLE: FL905
Connectors Model Price Qty.
SMA ZX30-20-4-S(+) $29.95 ea. (1-24)
FREQ.
(MHz)
COUPLING
(dB)
MAINLINE LOSS1
(dB)
DIRECTIVITY
(dB)
VSWR
(:1)
POWER
INPUT, W
fL-fUNom.
Typ.
Flatness
L M U L M U
Typ.
L MU
Typ. Max. Ty p. Max. Typ. Max. Ty p . Min. Ty p. Min. Typ. Min. Max. Max.
5-1000 20.5±0.6 ±0.5 0.3 0.5 0.35 0.6 0.6 0.9 21 19 22 19 19 11 1.11 1.0 1.0
Frequency
(MHz)
Mainline Loss
(dB)
In-Out
Coupling
(dB)
In-Cpl
Directivity
(dB)
In
Return Loss
(dB)
Out Cpl
L = low range [fL to 10 fL] M = mid range [10 fL to fU/2] U= upper range [fU/2 to fU]
1. Mainline loss includes theoretical power loss at coupled port.
20.00 0.29 20.09 21.35 29.65 33.25 27.81
100.00 0.29 20.12 22.22 29.95 33.34 27.20
180.00 0.32 20.16 23.67 30.03 32.96 25.43
260.00 0.33 20.17 26.11 30.01 32.22 23.53
340.00 0.34 20.18 29.14 29.95 31.83 21.53
450.00 0.36 20.20 28.63 30.13 30.82 19.44
575.00 0.41 20.29 22.50 30.59 30.09 17.36
750.00 0.46 20.46 16.86 32.61 29.81 15.04
875.00 0.51 20.63 14.14 35.69 28.84 13.69
1000.00 0.56 20.85 12.18 41.42 27.44 12.56
Electrical Schematic
Permanent damage may occur if any of these limits are exceeded.
+RoHS Compliant
The +Suffix identifies RoHS Compliance. See our web site
for RoHS Compliance methodologies and qualifications