AHCFM2-455DL

Manufacturer Part NumberAHCFM2-455DL
DescriptionFILTER CERAMIC AM TYPE CFM2
ManufacturerTOKO
SeriesCFM2
AHCFM2-455DL datasheet
 

Specifications of AHCFM2-455DL

Frequency455kHz CenterImpedance2K/2K Ohm
Bandwidth10kHzFilter TypeAM
Insertion Loss6dBPackage / CaseRadial - 3 Lead
Mounting TypeThrough HoleLead Free Status / RoHS StatusContains lead / RoHS non-compliant
Other namesCFM2-455D
TK2333
  
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Meeting Your Needs
TYPE CFM2, CFM3 (CERASIZER
Description
• Compact 2/3 element AM IF filter with unique structure for
high reliability.
• Center frequency range: 450 to 470kHz
• Bandwidth at 6dB: 4 to 12kHz. (4~8kHz: CFM3)
Features
• Compact, low profile
• High selectivity, suited to a wide range of applications
• Low temperature coefficient
• Low spurious response
Applications
• AM radio cassettes, stereo sets, telecommunications
• CB transceivers
STANDARD FILTERS SELECTION GUIDE
TYPE CFM2/CFM3
TOKO
Center
Part
Frequency (Fo)*
Number
(kHz)
CFM2
AHCFM2-450Z
450 1.0
AHCFM2-450AL
450 1.0
AHCFM2-450BL
450 1.0
AHCFM2-450CL
450 1.0
AHCFM2-450DL
450 1.0
AHCFM2-450EL
450 1.0
CFM3
AHCFM3-450AL
450 1.0
AHCFM2-450BL
450 1.0
AHCFM2-450CL
450 1.0
* Center frequencies 450kHz, 455kHz, 459kHz, 460kHz, 468kHz available. Center frequency tolerance available to 0.5kHz.
Test Circuit
R-LOG0502A
AM Ceramic Filters
®
)
Bandwidth
Selectivity
Ripple
at 6dB
at Fo 9kHz
in Pass Band
(kHz)
(dB)
4.0 1.0
24.0 min.
1.0 max.
4.0 min.
18.0 min.
1.0 max.
6.0 min.
16.0 min.
1.0 max.
8.0 min.
12.0 min.
2.0 max.
10.0 min.
9.0 min.
2.0 max.
12.0 min.
6.0 min.
2.0 max.
4.0 min.
28.0 min.
2.0 max.
5.5 min.
24.0 min.
2.0 max.
8.0 min.
20.0 min.
2.0 max.
Test Conditions
1. C includes test circuit capacitance. (50pF without L
2.
L
2.7mH (CFM2), 1.35mH (CHM3)
1
L
1.0mH
2
3. During testing, when matching coils are used at input/output sides,
connect L
and L
(dummy)
1
2
4. R
, R
: Input-output impedance
1
2
Cs: Stray capacitance
(less than 50pF, including EV)
1.800.PIK.TOKO
TYPE
CFM2
CFM3
Unit: mm
Insertion
Input/Output
Loss
Impedance
(dB)
(dB)
(k )
7.0 max.
1.0/1.5
6.0 max.
1.0/1.5
6.0 max.
1.5/2.0
6.0 max.
2.0/2.0
6.0 max.
2.0/2.0
6.0 max.
2.5/2.5
6.0 max.
3.0/3.0
6.0 max.
3.0/3.0
6.0 max.
3.0/3.0
, 62pF with L
)
2
2
www.tokoam.com
1.847.297.0070
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