AHCFM2-455AL TOKO, AHCFM2-455AL Datasheet

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AHCFM2-455AL

Manufacturer Part Number
AHCFM2-455AL
Description
FILTER CERAMIC AM 4KHZ TYPE CFM2
Manufacturer
TOKO
Series
CFM2r
Datasheet

Specifications of AHCFM2-455AL

Frequency
455kHz Center
Impedance
1K/1.5K Ohm
Bandwidth
4kHz
Filter Type
AM
Insertion Loss
6dB
Package / Case
Radial - 3 Lead
Mounting Type
Through Hole
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
CFM2-455A
TK2330
TYPE CFM2, CFM3 (CERASIZER
Description
• Compact 2/3 element AM IF filter with unique structure for
• 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
R-LOG0502A
* Center frequencies 450kHz, 455kHz, 459kHz, 460kHz, 468kHz available. Center frequency tolerance available to 0.5kHz.
Test Circuit
STANDARD FILTERS SELECTION GUIDE
high reliability.
TYPE CFM2/CFM3
AHCFM2-450EL
AHCFM2-450BL
AHCFM2-450CL
AHCFM2-450DL
AHCFM2-450CL
CFM2
AHCFM2-450Z
AHCFM2-450AL
CFM3
AHCFM3-450AL
AHCFM2-450BL
Number
TOKO
Meeting Your Needs
Part
Frequency (Fo)*
450 1.0
450 1.0
450 1.0
450 1.0
450 1.0
450 1.0
450 1.0
450 1.0
450 1.0
Center
(kHz)
Bandwidth
Test Conditions
1. C includes test circuit capacitance. (50pF without L
2.
3. During testing, when matching coils are used at input/output sides,
4. R
10.0 min.
12.0 min.
4.0 min.
6.0 min.
8.0 min.
4.0 min.
5.5 min.
8.0 min.
4.0 1.0
at 6dB
(kHz)
®
connect L
)
L
1
L
, R
1
2
2.7mH (CFM2), 1.35mH (CHM3)
Cs: Stray capacitance
1.0mH
2
AM Ceramic Filters
: Input-output impedance
(less than 50pF, including EV)
1
and L
at Fo 9kHz
Selectivity
24.0 min.
18.0 min.
16.0 min.
12.0 min.
28.0 min.
24.0 min.
20.0 min.
9.0 min.
6.0 min.
(dB)
2
1.800.PIK.TOKO
(dummy)
in Pass Band
1.0 max.
1.0 max.
1.0 max.
2.0 max.
2.0 max.
2.0 max.
2.0 max.
2.0 max.
2.0 max.
Ripple
(dB)
www.tokoam.com
Insertion
7.0 max.
6.0 max.
6.0 max.
6.0 max.
6.0 max.
6.0 max.
6.0 max.
6.0 max.
6.0 max.
2
Loss
(dB)
, 62pF with L
TYPE
CFM2
CFM3
Unit: mm
Input/Output
Impedance
2
)
1.0/1.5
1.0/1.5
1.5/2.0
2.0/2.0
2.0/2.0
2.5/2.5
3.0/3.0
3.0/3.0
3.0/3.0
1.847.297.0070
(k )
11

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