喇叭 S40-08-常州富鸿达电子有限公司

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喇叭 S40-08

零件应在一个条件下（温度：5～35℃，湿度：45%～85%R.H.，大气压：860～1060hPa）进行测量，除非调节标准条件（温度：25±3℃，湿度为60±10%R.H.大气压：860~1060hPa）来进行测量。

Speaker 1DimensionΦ40*H172Net WeightApprox 20g3Impedance8±15%Ωat 2.0KHz,1.0V4RatedInputPower2.0W5MaxInputPower3.0W6LowestResonanceFrequency210Hz±20% at1.0V7AudibleNoiseMustbefreeaudiblenoise100～4kHz,I

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产品描述

Speaker
1	Dimension	Φ40*H17
2	Net Weight	Approx 20g
3	Impedance	8±15%Ω at 2.0KHz,1.0V
4	Rated Input Power	2.0W
5	Max Input Power	3.0W
6	Lowest Resonance Frequency	210Hz±20% at 1.0V
7	Audible Noise	Must be free audible noise 100～4kHz, Input level up to 4.00Vrms.
8	Sound Pressure Level	89±3dB/1W 0.5M at 1.0,1.2,1.5,2.0KHz Average
9	Distortion	Less then 10 % at 1kHz 0.1W.
10	Operating Temperature	-20℃～+70℃
11	Store Temperature	-30℃～+80℃
2. D 2. Dimensions			Unit: mm

*Unit: mm; Tolerance: ±0.5mm Except Specified
3.Reliability Test 可靠性測試 3.1 LOAD TEST: White noise (EIA filter) for 96 hours @ 2.0W input power. 3.2 HUMIDITY TEST: Temperature: +40±2℃ Relative Humidity: 90%～95% Duration : 16 hours 3.3 HIGH TEMPERATURE TEST: High Temperature: +70℃ Duration: 16 hours 3.4 LOW TEMPERATURE TEST: Low Temperature: -30℃ Duration: 16 hours 3.5 DROP TEST: Height: 1.5M Cycle: 10 cycles(Onto the concrete board) 3.6 HEAT SHOCK TEST: High temperature : +70℃ Low temperature : -30℃ Changeover time: <30secends Duration : 1 hour Cycle : 5 3.7 TEMPERATURE CYCLE TEST: Temperature : -30℃ +70℃ Duration : 45 minutes Temperature gradient: 1～3℃/minutes Cycle: 5 All these tests above should be measured after leaving normal temperature for 1hrs. Sensitivity difference at 1kHz shall be within ±3dB from initial value after test. 以上試驗完畢後必須於常溫狀態下放置1小時再進行檢測。測試音壓級變化要求1kHz時必須在±3dB以內。