page date description: piezo audio transducer 1 of 5 11/12/2007 20050 sw 112 th ave. tualatin, oregon 97062 p h o n e phone 503.612.2300 f a x fax 503.612.2383 part number: CPE-827 specificatons operating voltage 50 vp-p max. current consumption 11 ma max. at 10 vp-p, sqaure wave, 4.5 khz sound pressure level 97 db min. at 10 cm/10 vp-p, sqaure wave, 4.5 khz electrostatic capacity 18,000 30% at 1 khz/1 v operating tempurature -30 ~ +85 c storage tempurature -40 ~ +95 c dimensions ?30.0 x h5.1 mm weight 4.7 g max. material abs ul-94 1/16? hb high heat (black) terminal wire type rohs yes appearance drawing 5.0 110.0 44.5 35.0 3.0 black red ul1095 lf 28awg 30.0 5.0 2.0 2.8 5.1 1.9 1.9 tolerance: 0.5 units: mm
page date description: piezo audio transducer 2 of 5 11/12/2007 20050 sw 112 th ave. tualatin, oregon 97062 p h o n e phone 503.612.2300 f a x fax 503.612.2383 part number: CPE-827 frequency response curve measurement method s.p.l. measuring circuit input signal: 10 vp-p, 4.5 khz, square wave mic: rion s.p.l. meter uc30 or equivalent s.g.: hewlett packard 33120a function generator or equivalent
environment test item test condition high temp. test after being placed in a chamber at +95c for 240 hours. low temp. test after being placed in a chamber at -40c for 240 hours. humidity test after being placed in a chamber at +40c and 905% relative humidity for 240 hours. temp. cycle test the part shall be subjected to 5 cycles. one cycle will consist of: page date description: piezo audio transducer 3 of 5 11/12/2007 20050 sw 112 th ave. tualatin, oregon 97062 p h o n e phone 503.612.2300 f a x fax 503.612.2383 part number: CPE-827 evaluation standard the buzzer will be measured after being placed at +25c 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. mechanical characteristics item test condition solderability stripped wires are immersed in rosin for 5 seconds and then immersed in solder bath of 270 5c for 3 1 seconds. lead wire pull strength the pull force shall be applied to lead wire: horizontal 3.0n for 30 seconds vertical 2.0n for 30 seconds vibration the buzzer shall be measured after applying a vibration amplitude of 1.5 mm with 10 to 55 hz band of vibration frequency to each of the 3 perpendicular directions for 2 hours. drop test the part will be dropped from a height of 75 cm onto a 40 mm thick wooden board 3 times in 3 axes (x, y, z) for a total of 9 drops. evaluation standard 90% min. of the lead terminals will be wet with solder (except the edge of the terminal). no damage or cutting off. 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. +125 +25 +25 -40 0.5hr 0.5hr 0.25 0.5hr 0.5hr 0.5hr 0.25 3hours
page date description: piezo audio transducer 4 of 5 11/12/2007 20050 sw 112 th ave. tualatin, oregon 97062 p h o n e phone 503.612.2300 f a x fax 503.612.2383 part number: CPE-827 reliability test item test condition operating (life test) 1. continuous life test: the part will be subjected to 48 hours of continuous operation at +70c 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 2c) with rated voltage applied. evaluation standard the buzzer will be measured after being placed at +25c 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 ~ +35c b) humidity: 45 - 85% c) pressure: 860-1060 mbar judgement test condition a) tempurature: +25 2c b) humidity: 60 - 70% c) pressure: 860-1060 mbar
page date description: piezo audio transducer 5 of 5 11/12/2007 20050 sw 112 th ave. tualatin, oregon 97062 p h o n e phone 503.612.2300 f a x fax 503.612.2383 part number: CPE-827 packaging
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