Low Pass Filter
50Ω
DC to 1800 MHz
-55°C to 100°C
-55°C to 100°C
10W max. at 25°C
25 VDC
0.5A max. at 25°C
Ceramic
LFCN-1800D-6+
CASE STYLE: FV1206
Maximum Ratings
Operating Temperature
Storage Temperature
RF Power Input*
Max. DC Voltage at pins 1&3
DC Current Input to Output
Features
• excellent power handling, 10W
• small size
• 7 sections
• temperature stable
• LTCC construction
• protected by U.S. Patent 6,943,646
+RoHS Compliant
The +Suffix identifies 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
Reel Size
7”
and Reel
Available Tape cost
extra
at no
Devices/Reel
20, 50, 100, 200, 500,1000, 3000
Electrical Specifications
1,2
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
Product Marking:
EM
Outline Drawing
(ON TOP)
Stop Band
(ON TOP)
1. DC Resistance to ground is 100 Mohms min.
2.
Measured on Mini-Circuits Characterization Test Board TB-270.
Typical Frequency Response
ATTENUATION (dB)
40
20
Electrical Schematic
R F IN
R F OUT
PCB Land Pattern
3
1
DC
F5
F1 F2 F3 F4
FREQUENCY
F6
Typical Performance Data at 25°C
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
LFCN-1800D+
VSWR
Suggested Layout,
Tolerance to be within
±.002
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+
INSERTION LOSS
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
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
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
FREQUENCY (MHz)
0
200
400
600
800 1000 1200 1400 1600 1800
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
www.minicircuits.com
P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com
Mini-Circuits
®
REV. OR
M159085
LFCN-1800D-6+
ED-11960
AD/CP/AM
161214