
CFJW
AM CERAMIC FILTERS
August 2005
 2005 TOKO America, Inc.
All Rights Reserved  
Printed in USA
1
CF-316-CFJW
R-LOG0805A
Dimensions 
TOKO America, Inc. 
1250 Feehanville Drive,  Mount Prospect, Illinois  60056
Tel: (847) 297-0070   Fax: (847) 699-7864   Web: http://
www.tokoam.com
The information furnished by TOKO, Inc. is believed to be accurate and reliable.  However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture 
of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or 
other rights of third parties which may result from the use of its products.  No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc.
Test Circuit  
Typical Characteristics  
Frequency response  
Description
 Single element AM IF filter.
 Center frequency range: 450kHz, 455kHz
 Bandwidth at 3dB: 10±3kHz, 7±1.5kHz, 
Features
 No adjustment required in the AM-IF circuit.  
 Lead-free terminations  
Applications
 Headphone stereos and pocket radios.  
 Radio cassettes with CD, mini-components.  
STANDARD FILTERS SELECTION GUIDE 
TYPE CFJW (CERATUNE
) 
TOKO                    Center            Bandwidth         Selectivity           Selectivity         Insertion       Input/Output
           Part             Frequency (Fo)*         at 3dB            at Fo±9kHz         at Fo±9kHz            Loss             Impedance
           Number                   (kHz)                   (kHz)                   (dB)
         (dB)                  (dB)                   (k
Ω
)
    ACFJW-450A            450±1.0                10±3.0                5.0 min.             3.0 min.               5.0 max.           3.0/3.0
    ACFJW-450B            450±1.0                10±3.0                5.0 min.             3.0 min.               5.0 max.           3.0/3.0
       ACFJW-455A            455±1.0                10±3.0                5.0 min.             3.0 min.               5.0 max.           3.0/3.0
    ACFJW-455B            450±1.0                10±3.0                5.0 min.             3.0 min.               5.0 max.           3.0/3.0
       BCFJW-450A            450±2.0                10±3.0                5.0 min.             3.0 min.               5.0 max.           3.0/3.0
    BCFJW-455A            455±2.0                10±3.0                5.0 min.             3.0 min.               5.0 max.           3.0/3.0
 ACFJW-450BN1          450±1.0                 7±1.5                 6.0 min.             5.0 min.               5.0 max.           3.0/3.0
 BCFJW-455BN1          455±1.0                 7±1.5                 6.0 min.             5.0 min.               5.0 max.           3.0/3.0
                                                                     R
1
=3.0kΩ
                                                                     R
2
=3.0kΩ 
                                                                      C
S
=50pF
Unit: mm