Outline Drawing

Maximum Ratings

Pin Connections

Features

Operating Temperature

-55°C to 100°C

Storage Temperature

-55°C to 100°C

RF Power Input*

10W 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.

RF IN

1**

RF OUT

3**

GROUND

2,4

**RF IN & RF OUT can be interchanged

Demo Board MCL P/N: TB-270

Suggested PCB Layout (PL-137)

Applications

Outline Dimensions (

)

inch

mm

• harmonic rejection

• VHF/UHF transmitters/receivers

• lab use

• excellent power handling, 10W

• small size

• 7 sections

• temperature stable

• patent pending

LFCN-1800

DC-1800

2125

2425

2500-7200

8600

20

1.2

7

MODEL

NO.

PASSBAND

(MHz)

fco, MHz

Nom.

(loss 3 dB)

Typ.

STOP BAND (MHz)

(loss, dB)

(loss < 1 dB)

Max.

VSWR (:1)

Stopband

Typ.

Passband

Typ.

NO. OF

SECTIONS

f 20

Min.

fr 20

Typ.

30

Typ.

Typical Performance Data at 25°C

Frequency

(MHz)

Insertion Loss

(dB)

VSWR

(:1)

LFCN-1800

INSERTION LOSS

0

10

20

30

40

50

60

0

1000 2000 3000 4000 5000 6000 7000 8000 9000

FREQUENCY (MHz)

LFCN-1800

VSWR

1

10

100

0

1000 2000 3000 4000 5000 6000 7000 8000 9000

FREQUENCY (MHz)

100.00

0.07

1.01

500.00

0.21

1.11

1000.00

0.41

1.24

1500.00

0.62

1.24

1850.00

0.86

1.06

1875.00

0.90

1.07

2000.00

1.21

1.22

2125.00

2.29

1.88

2450.00

32.51

15.53

2500.00

33.42

17.05

4000.00

38.61

42.38

6000.00

37.95

34.07

7200.00

32.93

24.48

8800.00

20.55

18.90

9000.00

19.80

17.39

A

B

C

D

E

F

G

.126

.063

.037

.020

.032

.009

.169

3.20

1.60

0.94

0.51

0.81

0.23

4.29

HJ

K

L

M

N

P

wt

.087

.024

.122

.024

.087

.012

.071 grams

2.21

0.61

3.10

0.61

2.21

0.30

1.80

.020

Model

Price

Qty.

LFCN-1800

$2.99

(10-49)

LFCN-1800D

$3.49

(10-49)

CASE STYLE: FV1206

fR 20 dB

20dB

3dB

40dB

1dB

FREQUENCY

f 20

f co

RF IN

RF OUT

schematic

schematic

schematic

schematic

schematic

typical frequency response

typical frequency response

typical frequency response

typical frequency response

typical frequency response

1. For Applications requiring DC voltage to be applied to the Input or output, use LFCN-1800D (DC Resistance to

ground is 100 Mohms min.)

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®

Mini-Circuits ISO 9001 & ISO 14001 Certified

DC to 1800 MHz

Low Pass Filter

Ceramic

LFCN-1800

REV. B

M96263

LFCN-1800

ED-11960/4

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