Date: 6/25/2007
Unit: mm
Part No: CEP-1136
Description: piezo audio indicator
Page No: 4 of 4
Reliability Test
Item
Operating (Life Test)
Test Condition
1. Continuous life test:
The part will be subjected to 48 hours of
continuous operation at +7±°C with rated
voltage applied.
Evaluation Standard
The buHHer will be measured after
being placed at +2ꢀ°C for 4
hours. The value of the
oscillation frequency/current
consumption should be ±1±5
compared to the initial
2. Intermittent life test:
A duty cycle of 1 minute on, 1 minute off, a
minimum of ꢀ,±±± times at room temp
(+2ꢀ ±2°C) with rated voltage applied.
measurements. The SPL should
be within ±1±dB compared to
the initial measurements.
Test Conditions
Standard Test Condition
Judgement Test Condition
a) Tempurature: +ꢀ ~ +3ꢀ°C
a) Tempurature: +2ꢀ ±2°C
b) Kumidity: 4ꢀ - 8ꢀ5
b) Kumidity: 6± - 7±5
c) Pressure: 86±-1±6± mbar
c) Pressure: 86±-1±6± mbar
Packaging
Phone: 800.275.4899
Fax: 503.612.2381
www.cui.com
20050 SW 112th Ave.
Tualatin, OR 97062