CPE-827 Datasheet, PDF (4/5 Pages) CUI INC – piezo audio transducer

PART NUMBER: CPE-827
page 4 of 5
date 11/12/2007
DESCRIPTION: piezo audio transducer
RELIABILITY TEST
item
operating (life test)
TEST CONDITIONS
standard test condition
judgement test condition
test condition
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 minutes 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.
a) tempurature: +5 ~ +35°C
a) tempurature: +25 ±2°C
b) humidity: 45 - 85% c) pressure: 860-1060 mbar
b) humidity: 60 - 70% c) pressure: 860-1060 mbar
20050 SW 112^th Ave. Tualatin, Oregon 97062 phone [phone] fax [phone]