Damde

FHDDMT87A


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FHDDMT87A

Parts shall be measured under one condition (temperature: 5~35 ℃, humidity: 45% ~ 85% R.H., atmospheric pressure: 860 ~ 1060hPa), unless standard conditions (temperature: 25±3 ℃, humidity: 60±10%R.H. atmospheric pressure: 860 ~ 1060hPa) are adjusted.

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Keywords: buzzer | horn | materialized film

Product Description

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

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Submission
Mobile phone two-dimensional code

Mobile two-dimensional code

Contact Us

0086-519-83822009

Mobile Phone: 008613813568186
Fax: 0519-88739926
Mailbox:
eve.jiang@czfhd.net
Address:
Zhenglu Town, Tianning District, Changzhou City, Jiangsu Province

Copyright©2023 All Rights Reserved of Changzhou FHD electronics Co.,Ltd.

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