SPECIFICATIONS
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Series
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CO-449: 4 Pin ½ DIP
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Frequency
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1 Hz-100 MHz
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Output
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HCMOS ≤ 50 MHz, ACMOS > 50 MHz
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Supply
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5 Vdc ± 5%
(Available with 3.3 Vdc input below 20 Mhz)
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Accuracy
(Maximum Error at 25°C)
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A : ± 50 ppm, C = ± 25 ppm, D = ±15 ppm
B : ± 10 ppm, E* = ± 1 ppm
*Settability via external capacitor; (<30 MHz only)
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Temperature Stability
Improved accuracy/stability available on some models. For example, for ±7 ppm over 0°C to +50°C and for ±10ppm over 0°C to +70°C. Improvement is also available over wider temperature ranges. Please contact factory.
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STANDARD:
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0°C
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to
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+70°C:
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±25 ppm
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Option 1:
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-55°C
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to
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+85°C:
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±50 ppm
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Option 2:
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-55°C
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to
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+125°C:
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±50 ppm
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Option 5:
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0°C
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to
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+50°C:
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±5 ppm
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Option 6:
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0°C
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to
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+50°C:
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±10 ppm
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Option 7:
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-55°C
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to
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+125°C:
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±100 ppm
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*Option 9:
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-55°C
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to
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+200°C:
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±300 ppm
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(Option 9: N/A above 20 MHz in CO-449 Series)
*Specified stability includes initial accuracy:
do not specify A,B,C,D or E accuracy.
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Aging Rate
(typical after 30 days)
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3 ppm first year
2 ppm/year thereafter
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Screen Tests:
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Class X: Seal test per MIL-STD-883,
Method 1014, Condition A2
(gross and fine)
stabilization bake @ +150ºC
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