Menu

0

IEC 60689:1980 ED1

Measurements and test methods for 32 kHz quartz crystal units for wrist watches and standard values

Publication date:   Jan 1, 1980

General information

99.60   Withdrawal effective   Nov 27, 2008

IEC

TC 49

International Standard

31.140   Piezoelectric devices

Buying

  Revised

PDF - €139.15

  English   French   Russian  



Buy

Scope

Applies to 32 kHz quartz crystal units for wrist watches. Gives methods of measurement of resonance frequency, resonance resistance, frequency-temperature dependence and frequency pulling. Lays down test methods in accordance with IEC 68-2-6, 68-2-20, 68-2-21 and 68-2-27.

Life cycle

NOW

WITHDRAWN
IEC 60689:1980 ED1
99.60 Withdrawal effective
Nov 27, 2008

REVISED BY

PUBLISHED
IEC 60689:2008 ED2