HC-49/U,HC-49/T,HC-49/T3
Crystal UNITS

Features
High reliability by means of resistance weld hermetic seal.
Excellent aging characteristics.
RoHS compliant and lead free.  
Type
HC-49/U,HC-49/T,HC-49/T3
Freq. range
Fundamental
3rd
5th
1.8432 ~ 48.0MHz
26.0 ~ 90.0MHz
80.0 ~ 176.0MHz
Vibration mode
AT cut , Fundamental , 3rd , 5th
Frequency tolerance (at 25°C)
-/+10ppm , -/+30ppm , or specify
Equivalent series resistance
See table No.1
Frequency stability over
operating temperature range
-/+10ppm , -/+30ppm , or specify
Operating temperature range
-10 ~ +60°C , or specify
Drive Level
1000uW Max.
Shunt capacitance
7.0pF Max.
Load capacitance
16pF, 18pF, 20pF, or specify
Aging
-/+2ppm/year , -/+5ppm/year

Equivalent series resistance(ESR) Table No.1
Frequency Mode ESR
1.8432 MHz Fundamental 500 ohms Max.
2.0~2.9 MHz Fundamental 350 ohms Max.
3.0~3.1 MHz Fundamental 200 ohms Max.
3.2~3.9 MHz Fundamental 150 ohms Max.
4.0~4.4 MHz Fundamental 100 ohms Max.
4.5~4.9 MHz Fundamental 80 ohms Max.
5.0~6.9 MHz Fundamental 50 ohms Max.
7.0~9.9 MHz Fundamental 35 ohms Max.
10.0~48.0 MHz Fundamental 25 ohms Max.
26.0~90.0 MHz 3rd 70 ohms Max.
80.0~176.0 MHz 5th 120 ohms Max.
Dimensions