EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE

Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001

sales@euroquartz.co.uk

www.euroquartz.co.uk

32.768kHz 3x8mm Crystals

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:

Peak Temperature:

25°C ±5°C

Operating Temperature Range:

-20 to +70°C

-40 to +85° available

Storage Temperature:

-55°~+105°C

Effective Series Resistance:

45kOhms 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:

100MOhm 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