Low Pass Filter Electrical Specifications @ 25°C

Maximum Ratings

Features

Operating Temperature

-55°C to 100°C

Storage Temperature

-55°C to 100°C

RF Power Input*

10W max. at 25°C

Applications

• harmonic rejection

• transmitters/receivers

• lab use

• test instrumentation

• 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

CASE STYLE: FF1118

PRICE: $ 39.95 ea. QTY (1-9)

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-400

DC-400

540

670

900-20000

10

1.15

21

Outline Drawing

Typical Frequency Response

FREQUENCY

>20 GHz

fco

f20

f40

40 dB

20 dB

3 dB

1 dB

Typical Performance Data @ 25°C

Frequency

(MHz)

Insertion Loss

(dB)

VSWR

(:1)

50

0.22

1.12

100

0.38

1.15

200

0.55

1.17

400

0.97

1.15

450

1.23

1.24

500

1.67

1.39

560

3.11

1.55

600

6.73

2.09

650

22.21

5.47

690

42.19

8.23

800

43.74

14.22

1000

44.36

26.35

3000

72.09

84.69

5000

64.87

54.70

7500

67.01

45.36

10000

75.88

16.45

12500

55.24

5.36

15000

55.32

13.07

17500

69.03

5.42

20000

70.03

16.72

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

DC to 400 MHz (40 dB Isolation up to 20 GHz)

Low Pass Filter

Coaxial

REV. OR

M96318

VLFX-400

EDU-0399

ED-11930A/3

URJ/AD/CP

050119

NEW!

VLFX-400

VLFX-400

INSERTION LOSS

0

10

20

30

40

50

60

70

80

90

100

0

4000

8000

12000

16000

20000

FREQUENCY (MHz)

VLFX-400

VSWR

1

10

100

1000

0

4000

8000

12000

16000

20000

FREQUENCY (MHz)