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Mini-Circuits
Mini-Circuits ISO 9001 & ISO 14001 Certified
Outline Drawing
Low Pass Filter Electrical Specifications
1
(T
AMB
=25C)
Maximum Ratings
Pin Connections
Features
Operating Temperature
-55C to 100C
Storage Temperature -55C to 100C
RF Power Input*
10W max. at 25C
DC Current Input to Output 0.5A max. at 25C
*Passband rating, derate linearly to 3.5W at 100C ambient.
RF IN
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
Outline Dimensions ( )
inch
mm
harmonic rejection
VHF/UHF transmitters/receivers
lab use
excellent power handling, 10W
small size
7 sections
temperature stable
protected by US Patent 6,943,646
LFCN-2500
(+)
DC-2500
3075
3675
3800-6100
8000
20
1.2
7
MODEL
NO.
PASSBAND
(MHz)
fco, MHz
Nom.
(loss 3 dB)
Typ.
STOP BAND (MHz)
(loss, dB)
(loss < 1 dB)
Max.
VSWR (:1)
Stopband
Typ.
Passband
Typ.
NO. OF
SECTIONS
F 20
Min.
FR 20
Typ.
30
Typ.
Typical Performance Data at 25C
Frequency
(MHz)
Insertion Loss
(dB)
VSWR
(:1)
20dB
20dB
3dB
3dB
40dB
40dB
ATTENUATION (dB)
A
T
T
E
N
U
A
T
I
O
N
(
d
B
)
1dB
1dB
co
co
F
F
F20
F20
FREQUENCY
FREQUENCY
FR 20dB
FR 20dB
RF IN
RF OUT
schematic
schematic
schematic
schematic
schematic
typical frequency response
typical frequency response
typical frequency response
typical frequency response
typical frequency response
1. For Applications requiring DC voltage to be applied to the Input or output, use LFCN-2500D (DC Resistance to
ground is 100 Mohms min.)
Model
Price
Qty.
LFCN-2500+
$1.99
(10-49)
LFCN-2500
$1.99
(10-49)
LFCN-2500D+ $2.49
(10-49)
LFCN-2500D
$2.49
(10-49)
CASE STYLE: FV1206
+ 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.
A
B
C
D
E
F
G
.126
.063
.037
.020
.032
.009
.169
3.20
1.60
0.94
0.51
0.81
0.23
4.29
H
J
K
L
M
N
P
wt
.087
.024
.122
.024
.087
.012
.071 grams
2.21
0.61
3.10
0.61
2.21
0.30
1.80
.020
PCB Land Pattern
Suggested Layout,
Tolerance to be within
.002
DC to 2500 MHz
Low Pass Filter
Ceramic
LFCN-2500+
LFCN-2500
REV. C
M98898
LFCN-2500
EDR-6783/2
RVN/AD/CP/AM
060725
50
0.05
1.02
2000
0.50
1.26
2530
0.80
1.24
3000
2.72
2.58
3660
24.30
23.81
3760
29.63
28.03
4000
43.19
31.03
5000
34.98
26.33
6000
34.38
24.48
7000
26.29
26.74
8000
22.85
27.59
10000
19.22
18.30
12000
14.60
13.09
15000
17.48
3.73
20000
15.48
4.84
LFCN-2500
INSERTION LOSS
0.0
10.0
20.0
30.0
40.0
50.0
0
5000
10000
15000
20000
FREQUENCY (MHz)
I
N
SERTI
O
N
L
O
SS (
-
d
B)
LFCN-2500
VSWR
1
10
100
1000
0
5000
10000
15000
20000
FREQUENCY (MHz)
VSWR
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