Data Sheet

EURO QUARTZ
3x8mm 32.768kHz Crystal
Cylindrical 'watch' crystal
An industry-standard source of 32.768kHz clock signals
Fully RoHs compliant
Excellent shock resistance and environmental capability
A high build quality component at low cost
OUTLINE & DIMENSIONS
SPECIFICATION
Frequency:
Calibration Tolerance at 25ºC:
Temperature Coefficient:
Peak Temperature:
Operating Temperature Range:
Storage Temperature:
Effective Series Resistance:
Shunt Capacitance (C0):
Motional Capacitance:
Load Capacitance (CL):
Ageing:
Maximum Drive level:
Reflow Soldering:
Insulation Resistance:
Shock Resistance:
32.7680kHz
from ±5ppm to ±50ppm
Inverse Parabolic -0.035 ppm/°C2
25°C ±5°C
-40 to +85°
-55°~+105°C
45kΩ max.
0.8pF typical
4.0fF max.
6pF or12.5pF
<±5ppm per year at +25°C
1.0 microW max.
10s maximum at 250°C twice
or 180s at 230°C, once.
100MΩ min.
±5ppm max. (Drop test 3 times
onto a hard board from 75cm)
STOCK NUMBERS/SPECIFICATIONS
Stock Number
MH32768A
MH32768B
MH32768M
MH32768P
Frequency Calibration
32.768kHz
32.768kHz
32.768kHz
32.768kHz
±15ppm
±20ppm
±5ppm
±5ppm
CL (pF)
12.5
12.5
12.5
6.0
Frequency Change vs. Temperature
X-Cut Crystal
2
Function = f/Fo = -0.035(T - To) ±10%
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk
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