
Outline Drawing
Low Pass Filter Electrical Specifications
1
(T
AMB
=25°C)
Maximum Ratings
Operating Temperature
Pin Connections
RF IN
Features
excellent power handling, 10W
small size
7 sections
temperature stable
patent pending
-55°C to 100°C
Storage Temperature -55°C to 100°C
RF Power Input*
10W max. at 25°C
DC Current Input to Output 0.5A max. at 25°C
*Passband rating, derate linearly to 3.5W at 100°C ambient.
1**
RF OUT
3**
GROUND
2,4
**RF IN & RF OUT can be interchanged
Demo Board MCL P/N: TB-270
Suggested PCB Layout (PL-137)
Applications
harmonic rejection
VHF/UHF transmitters/receivers
lab use
Outline Dimensions ( )
B
C
D
.063
.039
.020
1.60
0.99
0.51
K
L
M
.122
.024
.087
3.10
0.61
2.21
A
E
F
G
H
.126
3.20
.032
0.81
.009
0.23
.169
4.29
wt.
.087
2.21
J
N
P
.024
0.61
.012
0.30
.071 grams
1.80
.020
LFCN-2850
DC-2850
3300
4000
4200-7400
9000
20
1.2
7
MODEL
NO.
PASSBAND
(MHz)
(loss < 1 dB)
Max.
fco, MHz
Nom.
(loss 3 dB)
Typ.
STOP BAND (MHz)
(loss, dB)
f 20
Min.
Typ.
VSWR (:1)
Stopband
Typ.
Passband
Typ.
NO. OF
SECTIONS
fr 20
Typ.
30
Typical Performance Data at 25°C
Frequency
(MHz)
Insertion Loss
(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
5.00
8.51
LFCN-2850
INSERTION LOSS
0.0
10.0
20.0
30.0
40.0
50.0
0
5000
10000
15000
20000
FREQUENCY (MHz)
I
LFCN-2850
VSWR
1
10
100
1000
0
5000
10000
15000
20000
FREQUENCY (MHz)
V
fR 20 dB
20dB
3dB
1dB
40dB
A
FREQUENCY
f 20
f co
RF IN
RF OUT
schematic
typical frequency response
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.)
Model
LFCN-2850
LFCN-2850D
Price
$1.99
$2.49
Qty.
(10-49)
(10-49)
CASE STYLE: FV1206
INTERNET
http://www.minicircuits.com
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661
Distribution Centers
NORTH AMERICA 800-654-7949 417-335-5935 Fax 417-335-5945 E
UROPE 44-1252-832600
Fax 44-1252-837010
Mini-Circuits
Mini-Circuits
ISO 9001 & ISO 14001
Certified
DC to 2850 MHz
Low Pass Filter
Ceramic
LFCN-2850
REV. B
M96263
LFCN-2850
EDR-6783/1
RVN/AD/CP
050113
NEW!