Ceramic
Low Pass Filter
DC to 2850 MHz
LFCN-2850
Maximum Ratings
OperatingTemperature
StorageTemperature
Features
• excellent power handling, 10W
• small size
-55°C to 100°C
-55°C to 100°C
CASESTYLE:FV1206
• 7 sections
• temperature stable
• patent pending
RF Power Input*
10W max. at 25°C
Model
Price
Qty.
(10-49)
(10-49)
LFCN-2850
$1.99
DC Current Input to Output 0.5A max. at 25°C
LFCN-2850D $2.49
*Passband rating, derate linearly to 3.5W at 100°C ambient.
Applications
• harmonic rejection
• VHF/UHF transmitters/receivers
• lab use
Pin Connections
RF IN
1**
3**
2,4
RF OUT
Low Pass Filter Electrical Specifications1 (TAMB=25°C)
GROUND
**RF IN & RF OUT can be interchanged
PASSBAND
(MHz)
(loss < 1 dB)
fco, MHz
Nom.
(loss 3 dB)
STOP BAND (MHz)
(loss, dB)
VSWR (:1)
NO. OF
SECTIONS
MODEL
NO.
Outline Drawing
f 20
30
fr 20
Stopband Passband
Typ.
Min.
Typ.
Typ.
Typ.
Typ.
Max.
LFCN-2850
DC-2850
3300
4000
4200-7400
9000
20
1.2
7
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
schematic
RF IN
RF OUT
40dB
20dB
3dB
1dB
f co
f 20
fR 20 dB
FREQUENCY
Typical Performance Data at 25°C
Frequency
(MHz)
InsertionLoss
(dB)
VSWR
(:1)
50.00
1000.00
1500.00
2740.00
3320.00
3760.00
4080.00
4500.00
5000.00
7000.00
10000.00
12000.00
15000.00
18000.00
20000.00
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
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
inch
Outline Dimensions (
)
G
mm
A
.126
3.20
B
.063
1.60
C
.039
0.99
D
.020
0.51
E
.032
0.81
F
.009
0.23
H
.087
2.21
.169
4.29
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
5.00
8.51
Demo Board MCL P/N: TB-270
Suggested PCB Layout (PL-137)
LFCN-2850
INSERTION LOSS
LFCN-2850
VSWR
50.0
40.0
30.0
20.0
10.0
0.0
1000
100
10
1
0
5000
10000
15000
20000
0
5000
10000
15000
20000
FREQUENCY (MHz)
FREQUENCY (MHz)
®
INTERNET http://www.minicircuits.com
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661
REV.
M96263
LFCN-2850
EDR-6783/1
RVN/AD/CP
050113
B
Mini-Circuits
Distribution Centers NORTH AMERICA 800-654-7949 • 417-335-5935 • Fax 417-335-5945 • EUROPE 44-1252-832600 • Fax 44-1252-837010
Mini-Circuits ISO 9001 & ISO 14001 Certified