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UM1-3


ELECTRICAL SPECIFICATIONS

21MHz Series

Nominal frequency

21.400 / 21.450 /
21.600 /
21.700/
29.250 MHz

Model

NO
of Pole

Pass
Band-
width
(dB) (KHz)

Stop
Band-
width
(dB) (KHz)

Ripple
(dB)

Insertion
Loss
(dB)

Guaran-
teed
Attenu-
ation
(dB)

Termi-
nating
Impe-
dance
(k//pf)

Package

21M7.5A

2

3 3.75

18 14

0.5

2.0

20

0.85//5

UM1-3

21M7.5B

4

3 3.75

40 14

1.0

2.5

40

0.85//5

UM1-3X2

21M7.5C

6

3 3.75

60 12.5

2.0

3.0

60

0.85//5

C2

21M7.5D

8

3 3.75

80 12.5

2.0

4.0

90

0.85//5

D2

21M12A

2

3 6

18 23

0.5

2.0

20

1.2//2.5

UM1-3

21M12B

4

3 6

40 20

1.0

2.5

40

1.2//2.5

UM1-3X2

21F12C

6

3 6

60 20

2.0

3.0

65

1.6//2.0

C2

21F12D

8

3 6

80 20

2.0

4.0

90

1.2//2.5

D2

21M15A

2

3 7.5

18 25

0.5

1.5

20

1.5//2.0

UM1-3

21M15B

4

3 7.5

40 25

1.0

2.0

40

1.5//2.0

UM1-3X2

21M15C

6

3 7.5

60 25

2.0

2.5

65

1.5//2.0

C2

21M15D

8

3 7.5

80 25

2.0

3.0

90

1.5//2.0

D2

21N20A

2

3 10

18 34

0.5

1.5

20

2.2//1

UM1-3

21N20B

4

3 10

40 34

1.0

2.0

40

2.2//1

UM1-3X2

21N30A

2

3 15

15 50

0.5

1.5

20

3.0//0

UM1-3

21N30B

4

3 15

30 45

1.0

2.0

40

3.0//0

UM1-3X2

 21N15A

2

3 7.5

18 25

0.5

2.0

20

1.5//2.0

UM5-3

21N15A

2

3 7.5

18 25

0.5

2.0

20

1.6//1.0

UM5-3

21N20A

2

3 10

13 43

1.0

2.0

20

1.5//2.0

UM5-3

26N17A

2

3 8.5

14 25

0.5

2.5

12

1.1//2.0

UM1-3

29N20A

2

3 10

10 24.5

0.5

2.0

12

1.6//1.5

UM5-3

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