Directional Coupler
50Ω
Maximum Ratings
Operating Temperature
Storage Temperature
-55°C to 100°C
-55°C to 100°C
Permanent damage may occur if any of these limits are exceeded.
Coaxial
ZFDC-20-5+
BNC version shown
0.1 to 2000 MHz
Features
• very wideband, 0.1 to 2000 MHz
• excellent directivity, 27 dB typ.
• excellent mainline loss, 0.7 dB typ.
• rugged shielded case
CASE STYLE: K18
Connectors Model
Price
BNC
ZFDC-20-5+
$84.95
SMA
ZFDC-20-5-S+
$89.95
N-TYPE
ZFDC-20-5-N+
$89.95
BRACKET (OPTION"B")
$5.00
Qty.
(1-9)
(1-9)
(1-9)
(1+)
Coaxial Connections
INPUT
OUTPUT
COUPLED
3
1
2
Applications
• cellular
• instrumentation
• communication receivers & transmitters
+RoHS Compliant
The +Suffix identifies RoHS Compliance. See our web site
for RoHS Compliance methodologies and qualifications
Directional Coupler Electrical Specifications
Outline Drawing
FREQ.
RANGE
(MHz)
f
L
-f
U
0.1-2000
COUPLING*
(dB)
L
Nom.
19.5±0.5
Flatness
±0.5
MAINLINE LOSS
1
(dB)
M
U
L
DIRECTIVITY
(dB)
M
Min.
20
Typ.
27
Min.
20
Typ.
22
U
Min.
10
VSWR
(:1)
POWER
INPUT
(W)
L
MU
Max.
2.0
Max.
0.5
Typ. Max. Typ. Max. Typ. Max. Typ.
0.3
1.0
0.7
1.4
1.5
2.3
30
Typ.
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
]
1. Mainline loss includes theoretical power loss at coupled port.
* Above 1000 MHz, coupling flatness ±1 dB.
Typical Performance Data
Frequency
(MHz)
0.10
0.50
0.90
188.00
544.00
H
1.000
25.40
Mainline Loss
(dB)
In-Out
0.71
0.49
0.44
0.36
0.69
1.07
1.17
1.28
1.41
1.91
ZFDC-20-5+
MAINLINE LOSS
Coupling
(dB)
In-Cpl
19.79
19.57
19.52
19.46
19.85
20.18
20.18
20.13
19.96
19.34
Directivity
(dB)
25.09
33.79
34.79
32.56
30.03
28.13
28.46
29.48
34.06
18.40
In
11.79
21.84
23.69
26.83
22.02
19.60
19.23
18.96
18.82
18.91
Return Loss
(dB)
Out
11.84
22.89
25.23
27.83
22.00
20.58
20.30
20.07
19.75
17.73
Cpl
12.78
21.74
23.40
26.54
23.17
18.75
17.73
16.64
15.02
10.05
Outline Dimensions (
inch
)
mm
A
1.25
31.75
J
--
--
B
1.25
31.75
K
--
--
C
.75
19.05
L
.125
3.18
D
.63
16.00
M
1.688
42.88
E
.38
9.65
N
2.18
55.37
F
1.00
25.40
P
.75
19.05
G
.125
3.18
Q
wt
.07 grams
1.78
70.0
920.00
1020.00
1136.00
1310.00
2000.00
2.0
MAINLINE LOSS (dB)
1.6
1.2
0.8
0.4
0.0
at RF level of -10 dBm
ZFDC-20-5+
COUPLING & DIRECTIVITY
60
COUPLING & DIRECTIVITY
(dB)
50
40
30
20
10
0
at RF level of -10 dBm
COUPLING
DIRECTIVITY
0
400
800
1200
FREQUENCY (MHz)
1600
2000
0
400
800
1200
FREQUENCY (MHz)
1600
2000
ZFDC-20-5+
RETURN LOSS
40
RETURN LOSS (dB)
32
24
16
8
0
0
400
800
1200
FREQUENCY (MHz)
1600
2000
®
at RF level of -10 dBm
Electrical Schematic
CPL
IN
OUT
ISO 9001 ISO 14001 AS 9100
CERTIFIED
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661
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Notes: 1.
Performance and quality attributes and conditions not expressly stated in this specification sheet are intended to be excluded and do not form a part of this specification sheet.
2.
Electrical specifications
and performance data contained herein are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions.
3.
The parts covered by this specification sheet 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. B
M119986
ZFDC-20-5+
WZ/TD/CP/AM
120927