Coaxial
Low Pass Filter
DC to 400 MHz
NEWV!LF-400
Maximum Ratings
Operating Temperature
-55°C to 100°C
Storage Temperature
-55°C to 100°C
RF Power Input
8.5*W max. at 25°C
DC Current Input to Output 0.5A max. at 25°C
*Passband rating, derate linearly to 3.5W at 100°C ambient.
Outline Drawing
Outline Dimensions
(
inch
mm
)
B
.410
10.41
D
1.43
36.32
E
.312
7.92
wt.
grams
10.0
Features
• low cost
• small size
• 7 sections
• temperature stable
• patent pending
CASE STYLE: FF704
PRICE: $19.95 ea. QTY (10-24)
Applications
• harmonic rejection
• transmitters/receivers
• lab use
Low Pass Filter Electrical Specifications (TAMB=25°C)
MODEL
NO.
PASSBAND
(MHz)
(loss < 1 dB)
Max.
fco, MHz
Nom.
(loss 3 dB)
Typ.
STOP BAND (MHz)
(loss, dB)
f 20 40 fr 20
Min.
Typ.
Typ.
VSWR (:1)
Stopband Passband
Typ.
Typ.
VLF-400
DC-400
560
660 680-3000
5500
20
1.2
NO. OF
SECTIONS
7
typical frequency response
40dB
20dB
RF IN
schematic
RF OUT
3dB
1dB
f co f 20
fR 20 dB
FREQUENCY
Typical Performance Data at 25°C
Frequency
(MHz)
Insertion Loss
(dB)
VSWR
(:1)
1.00
100.00
250.00
400.00
560.00
650.00
680.00
1000.00
1500.00
2000.00
3000.00
3500.00
4000.00
5000.00
5500.00
0.06
0.24
0.46
0.82
3.32
29.34
40.84
45.29
67.47
55.97
40.46
34.35
31.93
21.90
20.67
1.02
1.08
1.08
1.11
2.23
13.37
16.68
40.90
62.43
61.67
52.99
50.78
43.48
31.07
25.87
80
70
60
50
40
30
20
10
0
0
VLF-400
INSERTION LOSS
1000
2000 3000 4000
FREQUENCY (MHz)
5000
6000
1000
VLF-400
VSWR
100
10
1
0 1000 2000 3000 4000 5000 6000
FREQUENCY (MHz)
Mini-Circuits® 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
REV. E
M94020
VLF-400
EDR-6588/3
RVN/AD/CP
040907
