INTERNET
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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
Typical Performance Data
Electrical Specifications (T
AMB
= -55C to 100C)
Maximum Ratings
Coaxial Connections
Features
VHF/UHF
instrumentation
cable tv
cellular
INPUT
1
OUTPUT
2
COUPLED
3
very flat coupling
very broad, multi-octave
all welded construction
protected by U.S Patents 6,140,887 & 6,784,521
Applications
Operating Temperature
-55C to 100C
Storage Temperature
-55C to 100C
Outline Drawing
Outline Dimensions ( )
inch
mm
Z30-18-4-75
MAINLINE LOSS
0.0
0.4
0.8
1.2
1.6
2.0
0
200
400
600
800
1000
FREQUENCY (MHz)
M
A
I
N
L
I
N
E
L
O
S
S
(
d
B
)
at RF level of -10 dBm
Z30-18-4-75
COUPLING & DIRECTIVITY
0
10
20
30
40
50
0
200
400
600
800
1000
FREQUENCY (MHz)
C
O
U
P
L
I
N
G
&
D
I
R
E
C
T
I
VI
T
Y
(
d
B
)
COUPLING
DIRECTIVITY
at RF level of -10 dBm
Z30-18-4-75
Z30-18-4-75
RETURN LOSS
0
10
20
30
40
50
0
200
400
600
800
1000
FREQUENCY (MHz)
R
E
T
U
R
N
L
O
S
S
(
d
B
)
IN
OUT
CPL
at RF level of -10 dBm
electrical schematic
INPUT
OUTPUT
COUPLED
75 5 to 1000 MHz
Directional Coupler
REV. B
M95492
EDR-5762
Z30-18-4-75
RVN/TD/CP
060619
Coaxial
A
B
C
D
E
F
G
H
1.25
1.25
.75
.63
.38
1.00
.125 1.000
31.75
31.75
19.05
16.00
9.65
25.40
3.18 25.40
J
K
L
M
N
P
Q
wt
--
--
.125
1.688
2.18
.75
.07 grams
--
--
3.18
42.88
55.37
19.05
1.78
70.0
CASE STYLE: K18
Connectors Model
Price
Qty.
BNC
Z30-18-4-75
$29.95 ea. (1-24)
FREQ.
(MHz)
COUPLING
(dB)
MAINLINE LOSS
1
(dB)
DIRECTIVITY
(dB)
VSWR
(:1)
POWER
INPUT, W
f
L
-f
U
Nom.
Typ.
Flatness
L
M
U
L
M
U
Typ.
L MU
Typ.
Max. Typ. Max. Typ. Max. Typ. Min. Typ.
Min.
Typ. Min.
Max. Max.
5-1000
18.50.5
0.5
0.8
1.5
0.85
1.5
0.95
1.6
28
17
23
16
15
--
1.30
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 [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.
5.00
0.88
18.17
26.83
20.12
22.09
19.91
50.00
0.80
18.05
27.94
21.82
24.52
21.60
150.00
0.81
18.07
28.42
21.72
24.14
19.39
300.00
0.74
18.07
28.32
20.92
23.17
15.85
400.00
0.81
18.19
26.64
21.03
24.11
14.06
550.00
0.94
18.42
23.47
18.77
21.14
11.77
675.00
0.98
18.54
20.98
17.59
18.69
10.33
800.00
0.97
18.59
18.90
17.21
18.90
9.51
925.00
0.99
18.73
16.98
17.06
17.80
8.84
1000.00
1.00
18.84
16.02
16.74
16.72
8.45
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