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-450 DC-450 640 800 900-20000 10 1.15 21
Frequency
(MHz)
Insertion Loss
(dB)
VSWR
(:1)
50 0.31 1.06
175 0.45 1.13
300 0.71 1.09
450 1.00 1.09
500 1.21 1.18
575 1.84 1.38
640 2.93 1.45
685 5.85 1.71
780 30.23 5.85
850 42.71 8.60
900 50.99 10.10
2000 65.26 44.38
4000 78.45 76.01
6000 69.29 49.69
8000 69.23 49.14
10000 97.72 23.84
12000 70.90 2.73
16000 70.44 11.13
18000 67.17 1.71
20000 60.16 8.17
Low Pass Filter Electrical Specications @ 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
Outline Dimensions ( )
inch
mm
B D E wt.
.410 2.67 .312 grams
10.41 67.82 7.92 17.0
Outline Drawing
FREQUENCY
>20 GHz Fco F20 F40
40 dB
ATTENUATION (dB)
20 dB
3 dB
1 dB
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unibodyconstruction
• protectedbyUSpatent6,943,646
Functional Schematic
Typical Frequency Response
Connectors Model Price Qty.
SMA VLFX-450 $39.95 ea. (1-9)
CASE STYLE: FF1118
Permanentdamagemayoccurifanyoftheselimitsareexceeded.
*Passbandrating,deratelinearlyto3.5Wat100°Cambient.
RF IN RF OUT
.312AcrossFlats
insomemodels
+RoHS Compliant
The +Suffix identifies RoHS Compliance. See our web site
for RoHS Compliance methodologies and qualifications
50ΩDCto450MHz(40dBIsolationupto20GHz)
Low Pass Filter
Coaxial
REV. C
M131810
VLFX-450
EDU-0399
ED-11930A/6
URJ/AD/CP
130319
Page1of1
VLFX-450
VLFX-450
INSERTION LOSS
0
20
40
60
80
100
120
0 4000 8000 12000 16000 20000
FREQUENCY (MHz)
INSERTION LOSS(dB)
VLFX-450
VSWR
1
10
100
0 4000 8000 12000 16000 20000
FREQUENCY (MHz)
VSWR
ISO 9001 ISO 14001 AS 9100 CERTIFIED
Mini-Circuits
®
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661
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Notes: 1. Performance and quality attributes and conditions not expressly stated in this specification sheet are intended to be excluded and do not form a part of this specification sheet. 2. Electrical specifications
and performance data contained herein are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions. 3. The parts covered by this specification sheet are subject to
Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled to the rights and benefits contained therein. For a full statement of the Standard
Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp.
For detailed performance specs
& shopping online see web site
minicircuits.com
IF/RF MICROWAVE COMPONENTS