date

page

PART NUMBER:

DESCRIPTION:

09/2010

3 of 4

PIEZO AUDIO TRANSDUCER

CPE-1785

phone 503.612.2300

fax 503.612.2383 www.cui.com

MECHANICAL CHARACTERISTICS

item

test condition

evaluation standard

Lead terminals are immersed in rosin for 5 seconds and then im-

mersed in a solder bath of +270 ±5°C for 3 ±1 seconds.

90% min. of the lead terminals will be

wet with solder.

(except the edge of the terminal)

soldering heat resistance

Lead terminals are immersed up to 1.5 mm from the buzzer’s

body in a solder bath of 300 ±5°C for 3 ±0.5 seconds or 260 ±5°C

for 10 ±1 second.

No interference in operation.

terminal mechanical strength

The force of 9.8 N is applied for 10 sec. to each terminal in axial

direction.

No damage or cutting off.

vibration test

The buzzer should be measured after a vibration amplitude of

0.75 mm with 10 ~ 55 Hz band of vibration frequency to each of

the 3 perpendicular directions for 0.5 hours.

The value of oscillation frequency /

current consumption

should be ±10% of the initial

measurements. The SPL should

be within ±10dB compared with

the initial measurement.

drop test

The buzzer without packaging is subjected to 3 drops on each

axis from the height of 70 cm onto a 10 mm thick wooden board.

Notes: 1. Not recommended for wave soldering

ENVIRONMENT TEST

item

test condition

evaluation standard

high temperature test

After being placed in a chamber at +80°C for 96 hours.

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.

low temperature test

After being placed in a chamber at -30°C for 96 hours.

humidity test

After being placed in a chamber at +40°C and 90 ±5% RH for

96 hours.

temperature cycle test

The part will be subjected to 5 cycles. One cycle will consist of:

RELIABILITY TEST

item

test condition

evaluation standard

operating (life test)

1. Continuous life test:

The part will be subjected to 48 hours of continuous operation at

55°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.

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 conditions

a) Temperature: +5 ~ +35°C

b) Humidity: 45 ~ 85%

c) Pressure: 860 ~ 1060 mbar

judgement test conditions

a) Temperature: +25 ±2°C

b) Humidity: 60 ~ 70%

c) Pressure: 860 ~ 1060 mbar

For more information, please visit the product page.