Ceramic
Low Pass Filter
50Ω
LFCN-490
DC(1) to 490 MHz
Features
Maximum Ratings
Operating Temperature
-55°C to 100°C
Storage Temperature
-55°C to 100°C
RF Power Input*
8.5W max. at 25°C
* Passband rating, derate linearly to 3.5W at 100°C ambient.
Permanent damage may occur if any of these limits are exceeded.
Pin Connections
RF IN
1
RF OUT
3
GROUND 2,4
CASE STYLE: FV1206
• excellent power handling, 8.5W
• small size
• 7 sections
• temperature stable
• LTCC construction
• protected by U.S. Patent 6,943,646
and Reel
Available Tape cost
at no extra
Devices/Reel
20, 50, 100, 200, 500,1000, 3000
Reel Size
7”
Applications
• harmonic rejection
• VHF/UHF transmitters/receivers
• RF suppression for DC lines on PCB
• anti-aliasing for A/D converter
Electrical Specifications(1,2) at 25°C
Outline Drawing
Parameter
(ON TOP)
Pass Band
(ON TOP)
Stop Band
F#
VSWR
Min.
Typ.
Max.
Unit
DC-490
650
DC-490
800
880-2500
6000
—
—
—
20
—
—
—
3.0
1.2
—
40
20
1.2
—
—
—
—
—
dB
dB
:1
dB
dB
dB
F3-F6
Rejection Loss
Frequency (MHz)
DC-F1
F2
DC-F1
F3
F4-F5
F6
Insertion Loss
Freq. Cut-Off
VSWR
800-6000
—
20
—
:1
(1) In Application where DC voltage is present at either input or output ports, coupling capacitors are required. Alternatively, if DC pass IN-OUT
is required, Mini-Circuits’ “D” suffix version of this model will support DC IN-OUT, and provide>100 MOhm isolation to ground.
(2) Measured on Mini-Circuits Characterization Test Board TB-270.
Typical Frequency Response
ATTENUATION (dB)
PCB Land Pattern
Electrical Schematic
R F IN
40
R F OUT
20
3
1
DC
F5
F1 F2 F3 F4
FREQUENCY
F6
Typical Performance Data at 25°C
Suggested Layout,
Tolerance to be within ±.002
Outline Dimensions ( inch )
mm
Frequency
(MHz)
Insertion Loss
(dB)
VSWR
(:1)
B
.063
1.60
C
.037
0.94
D
.020
0.51
E
.032
0.81
F
.009
0.23
G
.169
4.29
H
.087
2.21
J
.024
0.61
K
.122
3.10
L
.024
0.61
M
.087
2.21
N
.012
0.30
P
wt
.071 grams
1.80
.020
Demo Board MCL P/N: TB-270
Suggested PCB Layout (PL-137)
1.00
100.00
490.00
650.00
780.00
0.05
0.25
0.82
2.45
26.27
1.01
1.09
1.08
1.88
12.71
790.00
810.00
880.00
1050.00
1485.00
30.75
41.27
48.37
39.38
67.14
13.70
15.26
19.76
28.96
46.96
2065.00
2500.00
4000.00
5500.00
6000.00
A
.126
3.20
66.75
54.57
36.98
24.86
24.74
57.91
56.04
38.61
29.46
28.49
LFCN-490
INSERTION LOSS
LFCN-490
VSWR
100
70
60
50
VSWR
INSERTION LOSS (dB)
80
40
30
10
20
10
0
1
0
1000
2000
3000
4000
5000
6000
0
1000
FREQUENCY (MHz)
2000
3000
4000
5000
6000
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
Mini-Circuits
®
www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com
REV. K
M158161
LFCN-490
EDR-6588/4
RVN/AD/CP/AM
160920
