器件名称: 142-12.0M-20-25HP
功能描述: Weld Type Quartz
文件大小: 180.72KB 共4页
简 介:Oscilent Corporation | 141 - 142
Page 1 of 4
Quartz Crystals Series Number Package Description Last Modified
141 ~ 142
Quartz Crystal FEATURES - Industry Standard Package - Wide Frequency range - Tight Tolerances - Excellent reliability/Aging - "AT" cut crystals - Cost effective - RoHs / Lead Free compliant
HC-49U / HC-49T
Weld Type Quartz
April. 17 2008
OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS
PARAMETERS Frequency Range Frequency Tolerance Temperature Tolerance Operating Temperature Storage Temperature Shunt Capacitance Load Capacitance Drive Level Aging (First Year) Insulation Resistance CONDITIONS fO Ref @ +25°C TL TOPR TSTG CO CL DL @ +25°C IR CHARACTERISTICS 1.800 ~ 100.00 ±30 std. (±5 ~ ±100 avail.) ±50 std. (See Table 2) -20 ~ +70 std. (See Table 2) -55 ~ +125 7.0 max. 20.0 std. (8 ~ 50 and Series avail.) 0.05 ~ 1.0 ±5.0 max. 500 (DC100 ±10V) min. UNITS MHz PPM PPM °C °C pF pF mW PPM/Y Mohm
TABLE 1 - MODE OF OSCILLATION AND EQUIVALENT SERIES RESISTANCE
FREQUENCY RANGE (MHz) 1.800 ~ 2.000 2.000~ 2.400 2.400 ~ 3.000 3.000 ~ 3.500 3.500 ~ 4.000 4.000 ~ 7.000 7.000 ~ 10.000 10.000 ~ 15.000 15.000 ~ 20.000 20.000 ~ 25.000 25.000 ~ 30.000 30.000 ~ 75.000 75.000 ~ 100.000 27.000 ~ 35.000 MODE Fundamental Fundamental Fundamental Fundamental Fundamental Fundamental Fundamental Fundamental Fundamental Fund. / 3rd OT Fund. / 3rd OT 3rd Overtone 3rd / 5th Overtone BT Fund. HC-49T (ohm max.) 150 90 50 45 25 25 / 60 25 / 40 40 - / 60 40 HC-49U (ohm max.) 600 450 350……
