Notes

A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document.

B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions.

C. The parts covered by this specification document 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

Maximum Ratings

Typical Performance Data

Frequency

(MHz)

Insertion Loss

(dB)

Operating Temperature

-40°C to 85°C

Storage Temperature

-55°C to 100°C

Power Input

0.5W max.

Applications

• defense communications

• receivers/transmitters

• harmonic rejection of VCOs

Return Loss

(dB)

Frequency

(MHz)

Group Delay

(nsec)

_

x

σ

Low Pass Filter

SCLF-45+

REV. F

M158359

SCLF-45+

170315

Surface Mount

50

Ω

DC to 45 MHz

SCLF-45

INSERTION LOSS

0

20

40

60

80

100

120

1

10

100

1000

FREQUENCY(MHz)

at RF level of 0 dBm

SCLF-45

RETURN LOSS

0

10

20

30

40

50

1

10

100

1000

FREQUENCY(MHz)

at RF level of 0 dBm

SCLF-45

GROUP DELAY

0

10

20

30

40

50

1

27

53

79

105

131

FREQUENCY (MHz)

at RF level of 0 dBm

Pin Connections

INPUT

1

OUTPUT

8

GROUND

2,3,4,5,6,7

Features

• wide selection of cut-off frequencies

• excellent rejection

• custom models available

1.00

0.03

0.00

38.40

1.00

16.00

10.00

0.12

0.10

20.70

10.00

15.85

16.50

0.18

0.10

17.10

16.50

16.14

24.00

0.30

0.10

15.20

24.00

16.72

31.50

0.31

0.10

16.80

31.50

18.50

39.50

0.31

0.10

25.90

39.50

21.04

45.00

0.49

0.10

24.40

45.00

26.38

52.00

1.22

0.20

9.90

48.00

27.16

55.00

3.37

0.60

3.80

50.00

31.44

58.00

7.23

0.80

1.30

52.00

34.88

61.00

11.68

0.90

0.40

54.00

36.74

64.00

15.98

0.90

0.10

55.00

35.95

66.00

18.68

0.80

0.10

58.00

27.09

68.00

21.26

0.80

0.20

60.00

21.94

70.00

23.69

0.80

0.30

61.00

20.02

72.00

26.02

0.80

0.30

63.00

15.60

76.00

30.42

0.80

0.40

64.00

14.21

80.00

34.44

0.80

0.40

66.00

11.74

85.00

39.13

0.70

0.50

68.00

10.93

87.00

41.06

0.80

0.50

70.00

9.31

90.00

43.71

0.90

0.50

72.00

7.86

100.00

51.96

1.50

0.50

74.00

6.26

135.00

75.54

9.90

0.50

76.00

7.02

150.00

72.20

4.30

0.40

78.00

7.76

161.50

72.82

3.90

0.40

80.00

5.54

170.00

67.46

2.80

0.40

85.00

2.62

177.00

70.41

5.00

0.40

87.00

2.41

184.50

73.51

4.80

0.30

90.00

2.38

192.50

70.37

4.70

0.30

100.00

2.04

200.00

70.36

5.50

0.30

131.00

1.81

Demo Board MCL P/N: TB-187+

Suggested PCB Layout (PL-049)

Outline Drawing

Outline Dimensions (

)

inch

mm

PCB Land Pattern

Suggested Layout,

Tolerance to be within ±.002

A

B

C

D

E

F

G

0.75

0.38

0.28

0.01

0.05

0.02

0.2

19.05

9.65

7.11

0.25

1.27

0.51

5.08

H

J

K

M

N

P

wt

0.075

0.6

0.45

0.47

0.1

0.15 grams

1.91 15.24 11.43 11.94

2.54

3.81

1.60

Permanent damage may occur if any of these limits are exceeded.

Electrical Specifications

Parameter

F#

Frequency (MHz)

Min.

Typ.

Max.

Unit

Pass Band

Insertion Loss

DC-F1

DC-45

—

—

1.0

dB

Freq. Cut-Off

F2

55

—

3.0

—

dB

VSWR

DC-F1

DC-45

—

1.7

—

:1

Stop Band

Rejection Loss

F3-F4

70-90

20

—

—

dB

F4-F5

90-200

40

—

—

dB

VSWR

F3-F5

70-200

—

18

—

:1

Electrical Schematic

Typical Frequency Response

DC

F1 F2

F3

F4

F5

40

20

3

1

FREQUENCY

R F IN

R F OUT

CASE STYLE: YY161

+RoHS Compliant

The +Suffix identifies RoHS Compliance. See our web site

for RoHS Compliance methodologies and qualifications