Low Pass Filter
50Ω
Operating Temperature
Storage Temperature
RF Power Input*
DC Current Input to Output
Ceramic
LFCN-2850+
LFCN-2850
DC to 2800 MHz
Features
-55°C to 100°C
-55°C to 100°C
10W max. at 25°C
0.5A max. at 25°C
Maximum Ratings
* Passband rating, derate linearly to 3.5W at 100°C ambient.
• excellent power handling, 10W
• small size
• 7 sections
• temperature stable
• hermetically sealed
• protected by U.S. Patent 6,943,646
CASE STYLE: FV1206
Model
LFCN-2850+
LFCN-2850
LFCN-2850D+
LFCN-2850D
Price
$1.99
$1.99
$2.49
$2.49
Qty.
(10-49)
(10-49)
(10-49)
(10-49)
Pin Connections
RF IN
RF OUT
GROUND
** RF IN & RF OUT can be interchanged
Applications
1**
3**
2,4
PASSBAND
(MHz)
(loss < 1.2 dB)
Max.
DC-2800
• harmonic rejection
• VHF/UHF transmitters/receivers
• lab use
fco, MHz
Nom.
(loss 3 dB)
Typ.
3300
+ RoHS compliant in accordance
with EU Directive (2002/95/EC)
The +Suffix identifies RoHS Compliance. See our web site
for RoHS Compliance methodologies and qualifications.
Electrical Specifications
1
(T
AMB
=25°C)
STOP BAND (MHz)
(loss, dB)
F 20
Min.
4000
VSWR
(:1)
Stopband
Typ.
20
NO. OF
SECTIONS
Typ.
1.2
7
Outline Drawing
30
Typ.
4200-7400
FR 20
Typ.
9000
Passband
1. For applications requiring DC voltage to be applied to the Input or output, use LFCN-2850D (DC Resistance to ground is 100 Mohms min.)
typical frequency response
ATTENUATION (dB)
40dB
20dB
electrical schematic
RF IN
RF OUT
PCB Land Pattern
3dB
1dB
Fco F20
FREQUENCY
FR 20dB
Typical Performance Data at 25°C
Frequency
(MHz)
Suggested Layout,
Tolerance to be within
±.002
Insertion Loss
(dB)
0.04
0.24
0.36
0.80
3.00
15.16
31.03
44.67
39.17
29.02
20.75
15.45
11.89
14.80
20.40
LFCN-2850
VSWR
VSWR
(:1)
1.02
1.08
1.20
1.32
2.86
15.53
27.16
25.94
26.74
24.83
20.45
13.29
8.77
5.00
8.51
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
50
1000
1500
2740
3320
3760
4080
4500
5000
7000
10000
12000
15000
18000
20000
LFCN-2850
INSERTION LOSS
Demo Board MCL P/N: TB-270
Suggested PCB Layout (PL-137)
50.0
INSERTION LOSS (-dB)
40.0
1000
20.0
10.0
0.0
0
5000
10000
FREQUENCY (MHz)
15000
20000
VSWR
10
1
0
5000
10000
FREQUENCY (MHz)
15000
20000
30.0
100
Distribution Centers
NORTH AMERICA 800-654-7949 • 417-335-5935 • Fax 417-335-5945 • EUROPE 44-1252-832600 • Fax 44-1252-837010
Mini-Circuits
®
INTERNET
http://www.minicircuits.com
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661
Mini-Circuits
ISO 9001 & ISO 14001
Certified
REV. E
M102432
LFCN-2850
ED-6783/1
RVN/AD/CP/AM
060912
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