Low Pass Filter
50Ω
Operating Temperature
Storage Temperature
RF Power Input*
Max. DC Voltage at pins 1&3
DC Current Input to Output
Ceramic
LFCN-1800D-1+
DC to 1800 MHz
Features
-55°C to 100°C
-55°C to 100°C
10W max. at 25°C
25 VDC
0.5A max. at 25°C
Maximum Ratings
• excellent power handling, 10W
• small size
• 7 sections
• temperature stable
• LTCC construction
• protected by U.S. Patent 6,943,646
CASE STYLE: FV1206
PRICE: $3.49 ea. QTY (10-49)
+ RoHS compliant in accordance
with EU Directive (2002/95/EC)
The +Suffix has been added in order to identify RoHS
Compliance. See our web site for RoHS Compliance
methodologies and qualifications.
* Derate linearly to 3.5W at 100°C ambient.
Permanent damage may occur if any of these limits are exceeded.
Pin Connections
RF IN
RF OUT
GROUND
1
3
2,4
Applications
• harmonic rejection
• VHF/UHF transmitters/receivers
• lab use
Parameter
Pass Band
Insertion Loss
Freq. Cut-Off
VSWR
Rejection Loss
VSWR
Electrical Specifications
1
at 25°C
F#
DC-F1
F2
DC-F1
F3
F4-F5
F6
F3-F6
Frequency (MHz)
DC-1800
2125
DC-1800
2550
3000-7200
8600
2550-8650
Min.
—
—
—
20
—
—
—
Typ.
—
3.0
1.2
—
40
20
20
Max.
1.0
—
—
—
—
—
—
Unit
dB
dB
:1
dB
dB
dB
:1
Outline Drawing
Stop Band
1. DC Resistance to ground is 100 Mohms min.
Typical Frequency Response
ATTENUATION (dB)
Electrical Schematic
R F IN
R F OUT
PCB Land Pattern
40
20
3
1
DC
F5
F1 F2 F3 F4
FREQUENCY
F6
Suggested L ayout,
T olerance to be within ±.002
Typical Performance Data at 25°C
Frequency
(MHz)
1.00
1000.00
1800.00
1900.00
2000.00
2100.00
2200.00
2300.00
2400.00
2500.00
3000.00
4000.00
5000.00
8000.00
9000.00
LFCN-1800D-1+
INSERTION LOSS
Outline Dimensions (
inch
)
mm
A
.126
3.20
H
.087
2.21
B
.063
1.60
J
.024
0.61
C
.037
0.94
K
.122
3.10
D
.020
0.51
L
.024
0.61
E
.032
0.81
M
.087
2.21
F
.009
0.23
N
.012
0.30
G
.169
4.29
P
wt
.071 grams
1.80
.020
Insertion Loss
(dB)
0.03
0.41
0.74
0.86
1.06
1.46
2.72
6.84
15.18
28.34
47.02
36.22
41.86
25.75
21.86
VSWR
(:1)
1.01
1.27
1.06
1.06
1.08
1.22
1.88
4.29
9.33
14.03
21.46
28.03
44.55
15.81
14.03
LFCN-1800D-1+
VSWR
Demo Board MCL P/N: TB-270
Suggested PCB Layout (PL-137)
80
INSERTION LOSS (dB)
70
60
40
30
20
10
0
0
1.4
1.3
VSWR
1.2
1.1
1.0
50
1000 2000 3000 4000 5000 6000 7000 8000 9000
0
®
200
400
600
800 1000 1200 1400 1600 1800
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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FREQUENCY (MHz)
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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. OR
M126521
LFCN-1800D-1+
ED-11960
AD/CP/AM
100302
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