Monolithic Crystal Filters
ECM 90.0MHz
Small Size
Cost Effective Design
Surface Mount Available
Custom Options
Type
3
rd
Overtone
F90M7.5A
F90M7.5B
F90M12A
F90M12B
F90M15A
F90M15B
F90M20A
F90M20B
F90M30A
F90M30B
Centre
Frequency
90.00MHz
90.00MHz
90.00MHz
90.00MHz
90.00MHz
90.00MHz
90.00MHz
90.00MHz
90.00MHz
90.00MHz
Ripple
(max)
1.0dB
1.0dB
1.0dB
1.0dB
1.0dB
1.0dB
1.0dB
1.0dB
1.0dB
1.0dB
Number
Of Poles
2
4
2
4
2
4
2
4
2
4
Passband
Width
3dB +/-3.75kHz
3dB +/-3.75kHz
3dB +/-6.00kHz
3dB +/-6.00kHz
3dB +/-7.50kHz
3dB +/-7.50kHz
3dB +/-10kHz
3dB +/-10kHz
3dB +/-15kHz
3dB +/-15kHz
Termination
Impedance
2000Ω//0.3pF
1800Ω//0.1pF
2000Ω//0pF
2000Ω//-0.3pF
2000Ω//-0.1pF
2000Ω//-0.5pF
2500Ω//-0.4pF
2500Ω//-0.6pF
4000Ω//-0.7pF
4000Ω//-0.7pF
Case Style
UM a ~ f
UM a ~ f
UM a ~ f
UM a ~ f
UM a ~ f
UM a ~ f
UM a ~ f
UM a ~ f
UM a ~ f
UM a ~ f
Code Case
A
UM a UM-1
8.0
UM b UM-1S 8.0
UM c UM-5
8.0
UM d UM-5S 8.0
UM e UM-4
8.0
UM f
UM-4S 8.0
Dimensions in mm
B
3.0
2.5
3.0
2.5
3.0
2.5
C
8.0
8.0
6.0
6.0
4.5
4.5
D
20.0
20.0
20.0
20.0
20.0
20.0
E
3.75
3.75
3.75
3.75
3.75
3.75
F
0.35
0.35
0.35
0.35
0.35
0.35
ECM Electronics Limited, Penmaen House, Ashington, West Sussex, RH20 3JR, UK
Tel: +44(0)1903 892810: Fax: +44(0)1903 892738. Email: sales@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
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