Part No: CEP-1112
Description: piezo audio transducer
Phone: 800.275.4899 Fax: 503.612.2381 www.cui.com 20050 SW 112th Ave. Tualatin, OR 97062
Date: 9/18/2006
Unit: mm
Page No: 4 of 5
Reliability Test
Item Test Condition
Operating (Life Test) 1. Continuous life test:
The part will be subjected to 48 hours of
continuous operation at +70°C with rated
voltage applied.
2. Intermittent life test:
A duty cycle of 1 minute on, 1 minute off, a
minimum of 5,000 times at room temp
(+25 ±2°C) with rated voltage applied.
Evaluation Standard
The buzzer will be measured after
being placed at +25°C for 4
hours. The value of the
oscillation frequency/current
consumption should be ±10%
compared to the initial
measurements. The SPL should
be within ±10dB compared to
the initial measurements.
Test Conditions
Standard Test Condition a) Tempurature: +5 ~ +35°C b) Humidity: 45 - 85% c) Pressure: 860-1060 mbar
Judgement Test Condition a) Tempurature: +25 ±2°C b) Humidity: 60 - 70% c) Pressure: 860-1060 mbar
