CRYSTAL - RESONATORS

EQUIVALENT SERIES RESISTANCE(ESR,1R)
Frequency
ESR ( max.)
3.5MHzf0<4.0MHz
150
4.0MHzf0<6.0MHz
120
6.0MHzf0<10.0MHz
80
10.0MHzf0<14.0MHz
40
14.0MHz<f030.0MHz
25
30.0MHz<f036.0MHz
80
36.0MHz<f070.0MHz
80
FREQUENCY VS TEMPERATURE CURVE

STANDARD SPECIFICATIONS
Model
Item
HC-49/U-S
HC-49/U-S-SMD
U750-SMD
Conditions
Nominal frequency
f0
3.5MHz~70MHz
8MHz~70MHz
Please contact us for changes in frequency.
Frequency tolerance
f/f0
5ppm 20ppm 30ppm
AT 25C
Frequency vs. Temperature characteristics
f/f0
2.5ppm 5ppm 10ppm 20ppm 30ppm
-10C~+60C
Operating temperature range
TORP
-20C~+70C
-
Storage temperature range
TSTG
-40C~+85C
-
Equivalent series resistance
R1
See drawing
AT25C
Load capacitance
CL
16pF TYP.
Please specify
Shunt capacitance
C0
7.0pF MAX.
-
Drive level
DL
50~100 W
-
Insulation resistance
IR
500M MIN.
DC100V15V
Aging (First year)
f/f0
5ppm MAX.
25C 3C
Sealing
1 x 10 Pa.m /s MAX.
-
Shock resistance
10ppm MAX.
Drop test of 3 times on a hard board from 75cm height or
shock test of 3000G x 0.3ms x 1/2 sin wave x 3 directions
Conditions will vary depending on the frequency.

* Units provided with taping are available by request.

DIMENSIONS: (UNIT=mm)