ECM Monolithic Crystal Filters

ECM Electronics Limited, Penmaen House, Ashington, West Sussex, RH20 3JR, UK

Tel: +44(0)1903 892810: Fax: +44(0)1903 892738. Email: ecm@ecmelectronics.co.uk

Although we have attempted to accurately reflect the products we market. ECM reserve the right without prior notice to

discontinue any product or make design changes we believe necessary.

Issue 1

21.4MHz Series

§ Monolithic Crystal Filters

§ For I.F Selection in VHF & UHF Systems

§ Cost Effective Design

§ Rugged Construction

§ Custom Options Available

Type

Centre

Frequency

Channel

Spacing

Number

Of Poles

Passband

Width

Termination

Impedance

Case Style

F21M08A

21.4MHz

12.5kHz

2

3dB +/-3.75kHz

900

Ω//4pF

HC49/U

F21M08B

21.4MHz

12.5kHz

4

3dB +/-3.75kHz

1300

Ω//2pF

HC49/U x 2

F21M08C

21.4MHz

12.5kHz

6

6dB +/-3.75kHz

1300

Ω//2pF

M-104

F21M08D

21.4MHz

12.5kHz

8

6dB +/-3.75kHz

1300

Ω//2pF

M-105

FT21M08D

21.4MHz

12.5kHz

8

3dB +/-3.75kHz

910

Ω//15pF

M-106

F21M08AU

21.4MHz

12.5kHZ

2

3dB +/-3.75kHz

900

Ω//7pF

UM-1

F21M08BU

21.4MHz

12.5kHz

4

3dB +/-3.75kHz

900

Ω//2pF

UM-1 x 2

F21M08CU

21.4MHz

12.5kHz

6

6dB +/-3.75kHz

900

Ω//3pF

M-107

F21M08DU

21.4MHz

12.5kHz

6

6dB +/-3.75kHz

900

Ω//4pF

M-107

F21M08DL

21.4MHz

12.5kHz

6

6dB +/-3.75kHz

900

Ω//4pF

M-108

FT21M08DU

21.4MHz

12.5kHz

3

3dB +/-3.75kHz

470

Ω//15pF

M-110

F21M12BU

21.4MHz

20.0kHz

3

3dB +/-6.00kHz

1500

Ω//2pF

UM-1 x 2

F21M12CU

21.4MHz

20.0kHz

6

6dB +/-6.00kHz

1500

Ω//1pF

M-107

F21M12DU

21.4MHz

20.0kHz

8

6dB +/-6.00kHz

1500

Ω//1pF

M-107

F21M12DL

21.4MHz

20.0kHz

8

6dB +/-6.00kHz

1500

Ω//1pF

M-108

FT21M12DU

21.4MHz

20.0kHz

8

3dB +/-6.00kHz

470

Ω//15pF

M-110

F21M15A

21.4MHz

25.0kHz

2

3dB +/-7.50kHz

900

Ω//5pF

HC49/U

F21M15B

21.4MHz

25.0kHz

4

3dB +/-7.50kHz

1000

Ω//2pF

HC49/U x 2

F21M15C

21.4MHz

25.0kHz

6

6dB +/-7.50kHz

1200

Ω//1.5pF

M-104

F21M15D

21.4MHz

25.0kHz

8

6dB +/-7.50kHz

1200

Ω//2pF

M-105

FT21M15D

21.4MHz

25.0kHz

8

3dB +/-7.50kHz

910

Ω//15pF

M-106

FT21M15D2

21.4MHz

25.0kHz

8

3dB +/-7.50kHz

910

Ω//15pF

M-109

F21M15AU

21.4MHz

25.0kHz

2

3dB +/-7.50kHz

1500

Ω//2pF

UM-1

F21M15BU

21.4MHz

25.0kHz

4

3dB +/-7.50kHz

1500

Ω//1pF

UM-1 x 2

F21M15CU

21.4MHz

25.0kHz

6

6dB +/-7.50kHz

1500

Ω//1pF

M-107

F21M15DU

21.4MHz

25.0kHz

8

6dB +/-7.50kHz

1500

Ω//1pF

M-107

F21M15DL

21.4MHz

25.0kHz

8

6dB +/-7.50kHz

1500

Ω//1pF

M-108

FT21M15DU

21.4MHz

25.0kHz

8

3dB +/-7.50kHz

470

Ω//15pF

M-110