top hat®
Surface Mount
TCD-18-122-75X+
Directional Coupler
75Ω
18 dB 5 to 1250 MHz
Maximum Ratings
Operating Temperature
Storage Temperature
* Case temperature is defined as temperature on ground leads.
Permanent damage may occur if any of these limits are exceeded.
Features
CASE STYLE: DB1627
• wideband, 5 to 1250 MHz
• low mainline loss, 1.0 dB typ.
• aqueous washable
-40°C to 85°C*
-55°C to 100°C
+RoHS Compliant
The +Suffix identifies RoHS Compliance. See our web site
for RoHS Compliance methodologies and qualifications
• leads for excellent solderability
• protected by US Patent 6,140,887
Applications
• DOCSIS® 3.1 Systems
• VHF/UHF
• CATV
• cellular
Pin Connections
Reel Size
7”
13”
Devices/Reel
20, 50, 100, 200, 500
1000, 2000
INPUT
3
4
1
2
6
5
OUTPUT
COUPLED
GROUND
Electrical Specifications at 25°C
Parameter
Condition (MHz)
Min.
Typ.
Max.
Unit
Frequency Range
5
1250
MHz
75
Ω TERM EXTERNAL*
5 - 50
50 - 1000
1000 - 1250
—
—
—
1.2
1.0
1.1
1.5
1.4
1.5
NOT USED
Mainline Loss1 (above theoretical 0.1 dB)
dB
Nominal Coupling
5 - 1250
—
17.5 0.8
—
dB
dB
Outline Drawing
Coupling Flatness(±)
5 - 1250
—
0.7
1.1
5 - 50
50 - 1000
1000 - 1250
5 - 50
50 - 1000
1000 - 1250
5 - 50
50 - 1000
1000 - 1250
5 - 50
50 - 1000
1000 - 1250
5 - 100
15
15
14
14
18
17
15
18
17
15
18
17
—
—
18
22
18
17
22
24
18
23
18
17
23
25
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0.5
1.0
Directivity
dB
dB
dB
Return Loss (Input)
Return Loss (Output)
Return Loss (Coupling)
dB
W
Total thickness: .013 inches MAX.
PCB Land Pattern
Input Power
100 - 1250
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
Suggested Layout,
Tolerance to be within .002
5
50
1.17
0.89
0.88
0.89
0.89
0.89
0.89
0.91
0.96
1.06
18.56
18.04
18.02
18.01
17.95
17.82
17.65
17.48
17.20
16.81
18.08
30.89
31.98
29.01
25.48
23.18
21.47
20.00
18.50
16.74
16.32
20.97
21.28
21.36
21.18
21.42
22.01
23.30
26.44
29.71
17.22
23.02
23.07
22.54
21.63
21.46
22.80
28.26
29.66
19.14
17.73
21.18
21.50
21.91
22.86
24.47
26.65
29.39
31.72
30.64
inch
Outline Dimensions (
)
mm
100
200
350
500
650
800
1000
1250
A
.160
4.06
B
.150
3.81
C
.160
4.06
D
.050
1.27
E
.040
1.02
F
.025
0.64
G
.028
0.71
H
.065
1.65
J
.190
4.83
K
.030
0.76
wt
grams
0.15
TCD-18-122-75X+
COUPLING & DIRECTIVITY
TCD-18-122-75X+
MAINLINE LOSS
Demo Board MCL P/N:TB-72
Suggested PCB Layout (PL-010)
35
30
25
20
15
2.0
COUPLING
DIRECTIVITY
1.5
1.0
0.5
0.0
0
250
500
750
1000
1250
0
250
500
750
1000
1250
FREQUENCY (MHz)
FREQUENCY (MHz)
TCD-18-122-75X+
RETURN LOSS
Electrical Schematic
35
IN
OUT
CPL
30
25
20
15
0
250
500
750
1000
1250
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. OR
M151380
ED-13989/1
TCD-18-122-75X+
WP/CP/AM
®
Mini-Circuits
160202
www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com
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