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FHDDMT87A

常州富鴻達(dá)電子有限公司成立于2010年,生產(chǎn)蜂鳴器,喇叭,報(bào)警器,咪頭等電聲器件,是一家集研發(fā)、生產(chǎn)、銷售一體的企業(yè)。
產(chǎn)品詳情

1.SPECIFICATION
Speaker

1

Dimension

87*87 * H28

2

Impedance

8±15%Ω at 1KHz,1.0V

3

Rated Input Power

2W

4

Max Input Power

4W

5

Lowest Resonance Frequency

250Hz 20%

6

Audible Noise

Must be free audible noise (buzzes and rattles)(Fo ~ 7KHz frequency range ,input level up to 4V)

7

Sound Pressure Level

85±3 dB @ 0.4,0.5,0.6,0.8, 1.2KHz @ 1W/1.0m

8

Magnet

φ 40 * φ 19*8

9

Operating Temperature

-20 ℃ ~ +60 ℃

10

Store Temperature

-30 ℃ ~ +70 ℃

2.Dimensions * Unit: mm

Tolerance: ± 0.5mm Except Specified

3.Reliability Test Reliability Test

3.1 Load Test Continuous Load Test
Power Power: 2W
Duration Test Duration: 48hrs
3.2 High Temperature Test Heat Resistance Test
Temperature Temperature: +55±2 ℃
Relative Humidity:20%-25% RH
Duration Test Duration: 16hrs
3.3 Damp Heat Humidity Test
Temperature Temperature: 40±2 ℃
Relative Humidity Humidity: 90%-95% RH
Duration Test Duration: 48hrs

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.
After the above test is completed, it must be placed at room temperature for 1 hour before testing.
test sound pressure level change requirements 1kHz must be within ± 3dB.

4.Electrical And Acoustical Measuring Condition

5.Frequency Response

6.Packing

Add 6 magnetic isolation plates by air:
500*370mm * 2 pieces
500*200mm * 2 pieces
370*200mm * 2 pieces

shipping does not require additional magnetic isolation plate

Keywords: FHDDMT87A

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電話:+86-519-83822009
電話:+86-13813568186
傳真:+86-519-88739926
地址:江蘇省常州市天寧區(qū)鄭陸鎮(zhèn)

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