Low Pass Filter Electrical Specifications @ 25°C
Maximum Ratings
Operating Temperature -55°C to 100°C
Storage Temperature -55°C to 100°C
RF Power Input* 10W max. at 25°C
Typical Performance Data @ 25°C
Frequency
(MHz)
Insertion Loss
(dB)
VSWR
(:1)
Functional Schematic
RF IN RF OUT
*Passband rating, derate linearly to 3.5W at 100°C ambient.
Outline Dimensions ( )
inch
mm
B D E wt.
.39 2.67 .312 grams
9.91 67.82 7.92 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-1350 DC-1350 2050 2,425 2600-20000 10 1.3 21
Outline Drawing
Typical Frequency Response
FREQUENCY
>20 GHz
fco f20 f40
40 dB
ATTENUATION (dB)
20 dB
3 dB
1 dB
50 0.30 1.11
250 0.20 1.09
500 0.42 1.16
1000 0.76 1.14
1350 1.04 1.29
1500 1.18 1.27
1800 1.66 1.29
2050 3.17 1.52
2200 9.27 3.96
2425 37.39 12.66
2600 40.80 17.87
3000 76.88 27.55
4000 81.43 29.27
5000 78.41 46.43
7500 74.23 25.88
10000 79.16 41.61
12500 63.92 15.38
15000 55.14 9.11
17500 70.26 9.10
20000 63.12 11.15
Features
Applications
• harmonic rejection
• transmitters/receivers
• lab use
• test instrumentation
• very good isolation, 40 dB up to 20 GHz
• 21 sections
• excellent power handling, 10W
• temperature stable LTCC internal structure
• re-entry frequency > 20 GHz
• rugged stainless steel unibody
• protected by US patent 6,943,646
CASE STYLE: FF1118
Connectors Model Price Qty.
SMA VLFX-1350-S $39.95 ea. (1-9)
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®
Mini-Circuits ISO 9001 & ISO 14001 Certified
DC to 1350 MHz (40 dB Isolation up to 20 GHz)
Low Pass Filter
Coaxial
REV. A
M97025
VLFX-1350
EDU-0399
ED-11930A/19
URJ/AD/CP
051229
VLFX-1350
VLFX-1350
INSERTION LOSS
0
10
20
30
40
50
60
70
80
90
100
0 4000 8000 12000 16000 20000
FREQUENCY (MHz)
INSERTION LOSS(dB)
VLFX-1350
VSWR
1
10
100
0 4000 8000 12000 16000 20000
FREQUENCY (MHz)
VSWR
