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