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142-12.0M-20-25KT Datasheet(PDF) 1 Page - Oscilent Corporation |
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142-12.0M-20-25KT Datasheet(HTML) 1 Page - Oscilent Corporation |
1 / 4 page Quartz Crystals Series Number Package Description Last Modified 141 ~ 142 HC-49U / HC-49T Weld Type Quartz April. 17 2008 Quartz Crystal FEATURES - Industry Standard Package - Wide Frequency range - Tight Tolerances - Excellent reliability/Aging - "AT" cut crystals - Cost effective - RoHs / Lead Free compliant OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS PARAMETERS CONDITIONS CHARACTERISTICS UNITS Frequency Range fO 1.800 ~ 100.00 MHz Frequency Tolerance Ref @ +25°C ±30 std. (±5 ~ ±100 avail.) PPM Temperature Tolerance TL ±50 std. (See Table 2) PPM Operating Temperature TOPR -20 ~ +70 std. (See Table 2) °C Storage Temperature TSTG -55 ~ +125 °C Shunt Capacitance CO 7.0 max. pF Load Capacitance CL 20.0 std. (8 ~ 50 and Series avail.) pF Drive Level DL 0.05 ~ 1.0 mW Aging (First Year) @ +25°C ±5.0 max. PPM/Y Insulation Resistance IR 500 (DC100 ±10V) min. Mohm TABLE 1 - MODE OF OSCILLATION AND EQUIVALENT SERIES RESISTANCE FREQUENCY RANGE (MHz) MODE HC-49T (ohm max.) HC-49U (ohm max.) 1.800 ~ 2.000 Fundamental - 600 2.000~ 2.400 Fundamental - 450 2.400 ~ 3.000 Fundamental - 350 3.000 ~ 3.500 Fundamental - 150 3.500 ~ 4.000 Fundamental 150 90 4.000 ~ 7.000 Fundamental 90 70 7.000 ~ 10.000 Fundamental 50 50 10.000 ~ 15.000 Fundamental 45 35 15.000 ~ 20.000 Fundamental 25 25 20.000 ~ 25.000 Fund. / 3rd OT 25 / 60 25 / 50 25.000 ~ 30.000 Fund. / 3rd OT 25 / 40 25 / 40 30.000 ~ 75.000 3rd Overtone 40 40 75.000 ~ 100.000 3rd / 5th Overtone - / 60 - / 60 27.000 ~ 35.000 BT Fund. 40 40 TABLE 2 - FREQUENCY - TEMPERATURE TOLERANCE Tolerance (PPM) Page 1 of 4 Oscilent Corporation | 141 - 142 |
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