
CFMQ
AM CERAMIC FILTERS WITH MATCHING COIL
August 2005
 2005 TOKO America, Inc.
All Rights Reserved  
Printed in USA
1
CF-321-CFMQ
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.
Description
 Quadruple-tuned AM IF filters combining matching 
  coil and CFM2 in resin case.
 Center frequency range: 450 — 470kHz 
Features 
 Can be preset if required 
 High selectivity, suited to a wide range of applications 
 Low temperature coefficient 
 Low spurious response 
 Lead-free terminations  
Applications
 AM radio cassettes, high selectivity radio cassettes
 Wireless data communication equipment 
STANDARD FILTERS SELECTION GUIDE 
TYPE CFMQ (CERASIZER/Quadruple-tuned)
TOKO                    Center              Bandwidth          Selectivity              Ripple                  Input Level 
                      Part                   Frequency             at 6dB             at Fo±9kHz        inPass Band             for 0.6mV 
                  Number                     (kHz)                    (kHz)                    (dB)
(dB)                   Output (dB) 
      ##CFMQ-004A            450±1.5                5.5 min.              33.0 min.              1.0 max.                  82.0±2.5
              ##CFMQ-001A            455±1.5                5.5 min.              33.0 min.              1.0 max.                  82.0±3.0
              ##CFMQ-002A            460±1.5                5.5 min.              33.0 min.              1.0 max.                  87.0±2.5               
              ##CFMQ-010A            468±2.0                5.5 min.              32.0 min.              1.0 max.                  85.0±2.0               
Note: 50pF includes test circuit capacitance
Unit: mm
Test Circut