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RC-BC23 9.5ohm small size bone condutor for headphone

Our Model No.			RC-BC23		Product  Model No：
Customer					Customer’s Model No :
Specs			9.5Ω 0.05W
1	Applicable  Scope
1.1	Type		permanent-magnet  dynamic  loudspeaker
1.2	Dimensions		11.5*14.5*7.1 mm
1.3	Power		Nominal input 0.05 W,   Maximum input 0.15W
2.1	Average working voltage		0.7-3.7 V
2.2	Operating voltage（max）		3.7 V
3	Electrical   specification
3.1	F0		200HZ+-20%
3.2	Frequency		F0-16KHz
3.3	Sound pressure level		73DB+-3DB @1kHz 2V
3.4	Current consumption（Max）		100 mA
3.5	Distortion		5% less
3.6	Operation temperature		-20 ° C~60 ° C
3.7	Storage temperature		-30 ° C~+70 ° C
4	Reliability
4.1	Load    Test		Must be normal after load test :pink noise    0.05W    96 hours
4.2	heat  Test		Must be normal after 60±2℃and relative humidity20-25% 16hours and then room temperature 1hour.
4.3	Cold  Test		Must be normal -25±3℃ and relative humidity    -    %  16hours and then room temperature 1 hour
4.4	Humidity  Test		Must be normal after40±2℃ and relative humidity 90-95% 48 hours and then room temperature 1hour
APPRROVED				CHECKED			DESINGED