
PASSBAND
(MHz)
fco, MHz
Nom.
STOP BAND (MHz)
(loss, dB)
VSWR
(:1)
NO. OF
SECTIONS
(loss < 1 dB)
(loss 3 dB)
F 20
40
FR 20
Stopband
Passband
Max.
Typ.
Min.
Typ.
DC-400
560
660
680-3000
5500
20
1.2
7
* Passband rating, derate linearly to 3.5W at 100°C ambient.
1. For applications requiring DC voltage to be applied to the Input or output, use LFCN-400D+ (DC Resistance to ground is 100 Mohms min.)
ISO 9001 ISO 14001 AS 9100 CERTIFIED
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TM
IF/RF MICROWAVE COMPONENTS
NON-CATALOG
CASE STYLE: FV1206
Price: Contact Sales Dept.
+ RoHS compliant in accordance
with EU Directive (2002/95/EC)
The +Suffix has been added in order to identify RoHS
Compliance. See our web site for RoHS Compliance
methodologies and qualifications.
50
DC to 400 MHz
Low Pass Filter
LFCN-400TR5K+
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
REV. OR
M121048
LFCN-400TR5K
EDR-6588/3
RVN/AD/CP/AM
090129
Features
excellent power handling, 8.5W
small size
7 sections
temperature stable
protected by U.S. Patent 6,943,646
Applications
harmonic rejection
VHF/UHF transmitters/receivers
RF suppression for DC lines on PCB
anti-aliasing for A/D converter
Ceramic
electrical schematic
typical frequency response
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
Outline Dimensions (
)
inch
mm
Outline Drawing
RF IN
1**
RF OUT
3**
GROUND
2,4
Pin Connections
Demo Board MCL P/N: TB-270
Suggested PCB Layout (PL-137)
** RF IN & RF OUT can be interchanged
R F IN
R F OUT
Electrical Specifications1 (T
AMB=25°C)
20dB
3dB
40dB
A
T
E
N
U
A
T
IO
N
1dB
co
F
F 20
F R E QUE NC Y
F R 20dB
Typical Performance Data at 25°C
LFCN-400TR5K+
INSERTION LOSS
0
10
20
30
40
50
60
70
80
0
1000
2000
3000
4000
5000
6000
FREQUENCY (MHz)
IN
S
E
R
TI
O
N
LO
S
(d
B
)
LFCN-400TR5K+
VSWR
1
10
100
1000
0
1000
2000
3000
4000
5000
6000
FREQUENCY (MHz)
V
S
W
R
Frequency
(MHz)
Insertion Loss
(dB)
VSWR
(:1)
1.00
0.06
1.02
100.00
0.25
1.10
400.00
0.76
1.11
560.00
2.71
1.97
680.00
35.71
14.74
700.00
45.62
17.22
800.00
42.97
25.19
1000.00
42.26
40.41
1550.00
55.94
75.53
1770.00
71.17
66.82
2500.00
51.63
72.39
3000.00
50.38
57.91
3500.00
43.35
56.04
4340.00
18.96
14.62
5500.00
26.38
28.03
This is LFCN-400+
Reel Qty. 5000 pcs.