
Low Pass Filter Electrical Specifications @ 25°C
Maximum Ratings
Operating Temperature
Features
very good isolation, 40 dB up to 20 GHz
21 sections
temperature stable LTCC internal structure
patent pending
re-entry frequency > 20 GHz
rugged stainless steel unibody
-55°C to 100°C
Storage Temperature -55°C to 100°C
RF Power Input*
*
Passband rating, derate linearly to 3.5W at 100°C ambient.
10W max. at 25°C
Applications
harmonic rejection
transmitters/receivers
lab use
test instrumentation
CASE STYLE: FF1118
PRICE: $ 39.95 ea. QTY (1-9)
Typical Performance Data @ 25°C
Frequency
(MHz)
Insertion Loss
(dB)
VSWR
(:1)
Functional Schematic
RF IN
RF OUT
Outline Dimensions ( )
inch
B
D
E
wt.
.39
9.91
2.67
67.82
.312
7.92
grams
17.0
MODEL
NO.
PASSBAND
(MHz)
(Loss < 1.2dB)
Max.
fco, MHz
Nom
(Loss 3 dB)
Typ
STOPBAND (MHz)
(Loss, dB)
VSWR (:1)
NO. OF
SECTIONS
f20
Min.
f40
Typ.
Stopband
Typ.
Passband
Typ.
VLFX-825
DC-825
1275
1550
1850-20000
10
1.25
21
Outline Drawing
Typical Frequency Response
FREQUENCY
>20 GHz
fco
f20
f40
40 dB
A
20 dB
3 dB
1 dB
50
250
500
850
950
0.21
0.34
0.56
0.99
1.19
1.04
1.11
1.09
1.15
1.15
1100
1300
1400
1475
1800
1.58
3.89
11.97
22.09
39.04
1.11
1.26
3.20
5.16
18.43
2000
3000
4000
5000
7500
62.70
75.79
81.73
75.62
72.55
27.62
64.73
66.53
62.40
42.41
10000
12500
15000
17500
20000
71.84
61.43
77.23
68.24
73.81
17.08
6.17
5.85
21.82
13.68
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 EUROPE 44-1252-832600 Fax 44-1252-837010
Mini-Circuits
ISO 9001 & ISO 14001
Certified
Mini-Circuits
DC to 825 MHz (40 dB Isolation up to 20 GHz)
Low Pass Filter
Coaxial
REV. OR
M96318
VLFX-825
EDU-0399
ED-11930A/12
URJ/RS/CP
050119
NEW!
VLFX-825
VLFX-825
INSERTION LOSS
0
10
20
30
40
50
60
70
80
90
100
0
4000
8000
FREQUENCY (MHz)
12000
16000
20000
I
VLFX-825
VSWR
1
10
100
0
4000
8000
FREQUENCY (MHz)
12000
16000
20000
V