Environment Test of Keliking SMD Buzzer

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ENVIRONMENT TEST

NO.	ltem	Test condition	Evaluation standard

1	High temp test	After being placed in a chamber at +80℃ for 48 hours.


2	Low temp test	After being placed in a chamber at -40℃ for 48 hours.


		The part shall be subjected to 10 cycles.One cycle shall consist of:
			After the test the part shall meet
	Therman Shock		specifications with-out any
3			degradation in appearance and
			performance except SPL. After 4
			hours at +25℃.the SPL should be
			in±10dBA compared with initial one
		The part shall be subjected to 10 cycles. One cycle shall be 24 hours
		and consist of

	Temp./Humidity
4	Cycle

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