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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.
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Sample
Crystal Part Number:
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| 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 |
$16.75 |
| BETTER |
$18.85 |
| BEST |
$20.95 |
|
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| 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 |
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Inch dimensions shall govern.
All dimensions are in inches & parenthetically in millimeters.
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.
Crystals | Precision
Crystals | Quartz Microbalance
| Oscillators | TCXOs
| Filters
Download Catalog | Request
a Quotation | Contact International Crystal
Site Map | Terms & Conditions | Home
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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