International Crystal Manufacturing (ICM) offers a broad range of quartz crystals, precision crystals, oscillators, filters, TCXO / VCTCXOs, and Quartz Microbalance products. Crystal, oscillator, filter and frequency control products - collage   ICMFG.com
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Experimental Crystals

International Crystal Manufacturing Company, Inc. (ICM) designed the following information to assist designers, engineers, researchers, and amateur radio enthusiasts, to create part numbers in order to purchase small quantities of custom frequency crystals at an economical price.

 Sample Crystal Part Number: 
E X 4 9 D G 0 0


Holder style Grade Frequency Range Load
Code Description Code Description Code Description Code Description
48 HC-48/U H GOOD F 4.00 - 9.999 MHz Fundamental 00 Series Resonant
49 HC-49/U D BETTER G 10.000 - 19.999 MHz Fundamental    
50 HC-50/U A BEST H 20.000 - 24.999 MHz Fundamental 10 to 99
Load Capacitance
45 HC-45/U     L 20.000 - 59.999 MHz 3rd Overtone   In pF
        M 60.000 - 74.999 MHz 3rd Overtone    


  1-9
GOOD $15.95
BETTER $17.95
BEST $19.95
Build a crystal - illustration
 
SPECIFICATIONS Calibration Tolerance
at 25°C and
Specified Load
Temperature Tolerance
Relative to 25°C from
-30°C to +60°C
GOOD ±50 PPM
±50 PPM
BETTER ±20 PPM
±20 PPM
BEST ±10 PPM
±10 PPM
 
Standard
Holder Style
Frequency Range
in MHz
Mode of
Operation
Resistance in
OHMS
HC-48/U
4.000 - 4.999
FUNDAMENTAL 150
HC-48/U 5.000 - 24.999 FUNDAMENTAL 30
HC-49/U, HC-50/U 4.000 - 5.749 FUNDAMENTAL 80
HC-49/U, HC-50/U 5.750 - 24.999 FUNDAMENTAL 30
HC-45/U 7.500 - 24.999 FUNDAMENTAL 30
HC-48/U 20.000 - 74.999 3rd OVERTONE 40
HC-49/U, HC-50/U 20.000 - 74.999 3rd OVERTONE 40
HC-45/U 20.000 - 74.999 3rd OVERTONE 50

 

Inch dimensions shall govern.
All dimensions are in inches & parenthetically in millimeters.

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Call us today at 1-800-725-1426, fill out our contact form, email us at info@icmfg.com or request an online quote for International Crystal Manufacturing radio frequency control devices – quartz crystals, oscillators, filters, TCXOs, and precision crystals.

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International Crystal Manufacturing
10 North Lee Avenue Oklahoma City, OK 73102
Toll Free Phone: 1-800-725-1426 Toll Free Fax: 1-800-322-9426
Phone: 1-405-236-3741 Fax: 1-405-235-1904
Email: info@icmfg.com

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