Coaxial
Directional Coupler
ZMDC-30-1+
50Ω
0.1 to 250 MHz
Maximum Ratings
Features
Operating Temperature
-55°C to 100°C
-55°C to 100°C
• excellent mainline loss, 0.5 dB typ.
CASE STYLE: M21
• rugged shielded case
Storage Temperature
Connectors Model
SMA ZMDC-30-1+
BRACKET (OPTION"B")
BRACKET (OPTION "BR")
Price
Qty.
(1-9)
(1+)
(1+)
Permanent damage may occur if any of these limits are exceeded.
$51.95
$5.00
$1.50
Applications
• HF/VHF
• amateur radio
• instrumentation
Coaxial Connections
INPUT
3
2
1
OUTPUT
COUPLED
+RoHS Compliant
The +Suffix identifies RoHS Compliance. See our web site
for RoHS Compliance methodologies and qualifications
Directional Coupler Electrical Specifications
FREQ.
RANGE
(MHz)
COUPLING
MAINLINE LOSS1
DIRECTIVITY
VSWR
(:1)
POWER
INPUT
(W)
(dB)
(dB)
(dB)
Outline Drawing
L
M
U
L
M
U
L
MU
fL-fU
Nom.
Flatness Typ. Max. Typ. Max. Typ. Max. Typ. Min. Typ. Min. Typ. Min.
±0.5 0.4 0.6 0.5 0.8 0.55 0.85 23 18 20 15 17 10
M = mid range [10 fL to fU/2] U= upper range [fU/2 to fU]
Typ.
1.5
Max. Max.
0.1-250
30±0.5
1.0
3.0
L = low range [fL to 10 fL]
1. Mainline loss includes theoretical power loss at coupled port.
Typical Performance Data
Frequency
(MHz)
Mainline Loss
(dB)
Coupling
(dB)
In-Cpl
Directivity
(dB)
Return Loss
(dB)
In-Out
In
Out
Cpl
0.10
0.50
0.90
24.00
52.00
0.33
0.25
0.24
0.20
0.22
30.77
30.66
30.68
30.67
30.68
40.14
40.18
40.64
37.39
35.22
14.97
28.11
31.51
37.30
31.72
14.57
24.39
26.80
29.40
28.95
22.19
22.07
22.06
21.95
21.94
inch
Outline Dimensions (
)
mm
A
B
C
D
E
F
G
H
1.50
1.13
1.00
.50
.155 2.345
3.94 59.56
.138
3.51 25.07
.987
89.00
132.00
169.00
214.00
250.00
0.24
0.27
0.29
0.32
0.35
30.72
30.80
30.87
30.97
31.09
33.59
30.45
29.99
28.18
28.60
27.65
24.51
22.53
20.61
19.35
27.78
26.44
24.92
23.40
22.21
21.97
22.01
22.09
22.22
22.35
38.10 28.70 25.40 12.70
J
2.50
63.50
K
.10
2.54
L
.31
M
.75
N
P
S
wt
.150 grams
3.81 40.0
1.19
.66
7.87 19.05 30.23 16.76
ZMDC-30-1+
MAINLINE LOSS
ZMDC-30-1+
COUPLING & DIRECTIVITY
at RF level of -10 dBm
at RF level of -10 dBm
0.5
0.4
0.3
0.2
0.1
45
41
37
33
29
25
COUPLING
DIRECTIVITY
0
50
100
150
200
250
0
50
100
150
200
250
FREQUENCY (MHz)
FREQUENCY (MHz)
ZMDC-30-1+
RETURN LOSS
Electrical Schematic
at RF level of -10 dBm
50
42
34
26
18
10
IN
OUT
CPL
0
50
100
150
200
250
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. C
M131858
®
ZMDC-30-1+
WZ/TD/CP/AM
131015
Mini-Circuits
www.minicircuits.com P.O. Box 35166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com
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