CRYSTAL - RESONATORS


DIMENSIONS: (UNIT=mm)


AT-310 L=10.5
AT-309 L=9.0
AT-308 L=8.0
FREQUENCY VS TEMPERATURE CURVE
 

STANDARD SPECIFICATIONS

Model
Item
AT-310
AT-309
AT-308
Conditions
Nominal frequency
f0
3.5MHz~32MHz (fund)
30MHz~70MHz(3rd)
Please contact us for changes in frequency.
Frequency tolerance
f/f0
10ppm
20ppm
30ppm
AT 25C
Frequency vs. Temperature characteristics
f/f0
20ppm
30ppm
50ppm
-10C~+60C
Operating temperature range
TORP
-20C~+70C
-
Storage temperature range
TSTG
-40C~+85C
-
Equivalent series resistance
R1
See drawing
AT25C
Load capacitance
CL
10.0pF~TYP.
Please specify
Shunt capacitance
C0
5.0pF MAX.
-
Drive level
CL
10 W~100 W
-
Insulation resistance
IR
500M MIN.
DC100V15V
Aging (First year)
f/f0
3ppm MAX.
25C 3C
Sealing
1 x 10 Pa.m /s MAX.
-
Shock resistance
5ppm 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.

EQUIVALENT SERIES RESISTANCE (ESR,R1)

Frequency (MHz)
3.5~4.0
4.0~6.0
6.0~10.0
10.0~32.0
30.0~36.0
36.0~70.0
Equivalent series resistance
150
120
60
40
80
80
Mode
FUND
FUND
FUND
FUND
3RD
3RD