INTERNET
http://www.minicircuits.com
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661
Distribution Centers NORTH AMERICA 800-654-7949 417-335-5935 Fax 417-335-5945 EUROPE 44-1252-832600 Fax 44-1252-837010
Mini-Circuits
Mini-Circuits ISO 9001 & ISO 14001 Certified
50 0.5 to 200 MHz
Bi-Directional Coupler
Plug-In
CASE STYLE: A01
PRICE: $19.20 ea. QTY. (1-9)
Outline Dimensions ( )
inch
mm
Maximum Ratings
Pin Connections
Outline Drawing
Directional Coupler Electrical Specifications
REV. A
M98898
PDC-20-1BD
WZ/TD/CP/AM
060724
A
B
C
D
E
F
.770
.800
.385
.400
.370
.400
19.56 20.32
9.78 10.16
9.40 10.16
G
H
J
K
wt
.200
.20
.14
.031
grams
5.08
5.08
3.56
0.79
5.2
Typical Performance Data
PDC-20-1BD+
PDC-20-1BD
Operating Temperature
-55C to 100C
Storage Temperature
-55C to 100C
Features
up to 5W power input
excellent VSWR, 1.1:1 typ.
very low insertion loss, 0.3 dB typ.
excellent directivity, 35 dB typ.
rugged welded construction, hermetically sealed
Applications
HF/UHF
communication receivers & transmmitters
amateur radio
PDC-20-1BD
MAINLINE LOSS
0.0
0.1
0.2
0.3
0.4
0
40
80
120
160
200
FREQUENCY (MHz)
MAINLINE
LOSS
(dB)
at RF level of -10 dBm
PDC-20-1BD
COUPLING & DIRECTIVITY
10
20
30
40
50
60
0
40
80
120
160
200
FREQUENCY (MHz)
C
O
U
P
L
I
N
G
&
D
I
R
E
C
T
I
V
I
T
Y
(
d
B
)
IN - CPL FWD
IN - CPL REV
at RF level of -10 dBm
PDC-20-1BD
RETURN LOSS
20
25
30
35
40
45
50
0
40
80
120
160
200
FREQUENCY (MHz)
R
E
T
U
R
N
L
O
S
S
(
d
B
)
IN
OUT
CPL FWD
CPL REV
at RF level of -10 dBm
electrical schematic
CPL
FORWARD
CPL
REVERSE
IN
OUT
INPUT
1
OUTPUT
4
COUPLED (forward)
3
COUPLED (reverse)
6
GROUND
2,5,7,8
CASE GROUND
2,5,7,8
+ 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.
Frequency
(MHz)
Mainline Loss
(dB)
Coupling
(dB)
Directivity
(dB)
Return Loss
(dB)
In-Out
In-Cpl Fwd
Out-Cpl Rev Out-Cpl Fwd
In-Cpl Rev
In
Out
Cpl Fwd
Cpl Rev
0.50
0.34
19.38
19.40
60.80
45.48
26.08 25.12
25.68
26.72
1.00
0.28
19.35
19.35
61.66
48.74
29.86 28.08
28.62
30.56
5.00
0.22
19.30
19.31
59.50
53.47
38.93 33.54
33.43
39.10
10.00
0.21
19.30
19.30
58.75
52.11
41.72 34.47
34.19
41.47
20.00
0.22
19.29
19.29
57.01
46.56
42.36 34.57
34.35
42.07
50.00
0.25
19.32
19.33
50.59
38.89
39.63 34.07
34.20
40.71
100.00
0.27
19.35
19.39
42.93
32.65
35.40 33.24
34.20
37.92
130.00
0.29
19.33
19.43
39.14
30.18
33.49 32.64
34.07
36.51
160.00
0.30
19.38
19.47
35.48
28.44
31.99 32.08
34.04
35.39
200.00
0.33
19.40
19.56
31.91
26.30
30.32 31.08
33.89
33.80
FREQ.
(MHz)
COUPLING
(dB)
MAINLINE LOSS
1
(dB)
DIRECTIVITY
(dB)
VSWR
(:1)
POWER
INPUT, W
Nom. Flatness
L
M
U
L
M
U
L
MU
f
L
-f
U
Typ. Max. Typ. Max. Typ. Max. Typ. Min. Typ. Min. Typ. Min.
Typ.
Max. Max.
0.5-200
19.20.5
0.5
0.3
0.7
0.3
0.5
0.4
0.6
40
30
35
20
22
18
1.1
3.0
5.0
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.
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