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1
JIANGSU HD-CRYSTAL TECHNOLOGY CO., LTD
72008000RW1
2. Construction:
2.1 Type of Quartz Resonator: HC-49SMD
1. Scope:
1.1 This specification applies to the RoHS
quency of 8.000MHz which will be used
compliance quartz crystal unit with a fre-
in crystal oscillator applications.
Rev . 1. 1
3. Electrical Characteristics
3.1 Nominal Frequency(f):
3.2 Load Capacitance(C
L
):
3.3
Frequency Tolerance(Ƹf/f):
3.4 Frequency Temperature Stability:
3.5 Resonance Resistance(ohm):
3.6 Osc mode:
3.7 Shunt Capacitance(C
0
):
3.8 Drive Level(D
L
):
3.9 Operating Temperature Range(T
OPR
):
3.10 Storage Temperature Range(T
STG
):
3.11 Insulation Resistance(IR):
3.12
Aging(Ƹf
A
):
Fundamental
mode
7pF Max
100ȝW typical
-20 to + 70°C
-55 to + 125°C
˚
500M ohms
±5ppm/Year Max
80 ohms Max
8.0000
Hz
20pF
±20ppm
±20ppm
+&60' 4XDUW]&U\VWDO
2
Rev . 1. 1
Reliability Specification
Item
Condition
Standard
1.
Drop characteristics
Free drop from 75cm height on a hard wooden
board for 3 times. (Board is thickness more than
30 mm.)
Frequency change:ݱ5ppm
Rr as specification
2
Mechanical shock
Device are shocked to half sine wave (1000g)
three mutually perpendicular axes each 3 times
Frequency change:ݱ5ppm
Rr as specification
3.
Shake characteristics
Shake frequency 10~55Hz, cyc1~2 minutes,
swing 1.5mm, direction x/y/z, all 30 minutes, test
after 1 hours.
Frequency change:ݱ5ppm
Rr as specification
4.
Humidity
characteristics
+40±2ć & 90%~95% R.H. 250 hours
Frequency change:ݱ5ppm
Rr as specification
5.
Low temperature
characteristics
-40±2ć, 250 hours, put in room temperature,
test after 1 hours.
Frequency change:ݱ5ppm
Rr as specification
6.
High temperature
characteristics
+85±2ć, 250 hours, put in room temperature,
test after 1 hours.
Frequency change:ݱ5ppm
Rr as specification
7.
Temperature cycling
-30±3ć/30±3 min~+85±2ć/30±3min,
5 cycles
Frequency change:ݱ5ppm
Rr as specification
8.
Refluence
examination
Frequency change:ݱ5ppm
Rr as specification
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