HC-49U Resonator

Quartz Crystal Resonator HC-49/U, HC-49/T, HC-49/T3
Features
High Frequency Range
Excellent aging characteristics
High Frequency Stability

Specification
Type HC-49/U,HC-49/T,HC-49/T3
Frequency Range 1.8~90.0 mhz
Vibration Mode AT-cut
Frequency Tolerance +-10ppm~+-50ppm(@25)
ESR See table 1
Stability(-10~+60) +-5ppm~+-50pm
Shunt Capacitance 7.0pf max
Load Capacitance Series Resonance, 16f, 20f, 30pf
Insulation Resistance 500mΩ Min./Dc100V
Leak 5*10-8atm.Cc/sec Max  
Aging +-2ppm/year, +-5ppm/year

Equivalent Series Resistance(Max)
Frequency( Mhz) ESR Frequency ESR(Ω)
1.8432   Mhz 500Ω 4.5~4.9   Mhz 80Ω
2.0~2.9  Mhz 350Ω 5.0~6.9   Mhz 50Ω
3.0~3.1  Mhz 200Ω 7.0~9.9   Mhz 35Ω
3.2~3.9  Mhz 150Ω 10.0~48.0 Mhz 25Ω
4.0~4.4  Mhz 100Ω 26.0~90.0 Mhz 70Ω(3rd)