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FHDDMT4028A


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FHDDMT4028A

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

40.2*28.2 * H 11.6mm

2

Impedance

8Ohm ± 20% at 1.2KHz,1.0V

3

Rated Input Power

2.0W

4

Max Input Power

3.0W

5

Lowest Resonance Frequency

400 20% Hz

6

Audible Noise

The input power shall be set at rated noise power(2.0W). Using an audio oscillator sweep from F0 to 16KHZ in free air. There shall be no buzzes,rattles,nor spurious noises.

7

Sound Pressure Level

99±3dB SPL(0.1m,1.0W) at1.0,1.2,1.5,2.0KHz (0dB SPL = 20μPa)

8

Distortion

Less exceeded ≤ 7%

9

Operating Temperature

-20 ℃ to +70 ℃

10

Store Temperature

-30 ℃ to +80 ℃

2.Dimensions

3.Reliability Test Reliability Test

3.1

High Temperature Test

High Temperature: +80 ℃ 5 ℃
Duration: 48 hours

3.2

Low Temperature Test

Low Temperature: -30 ℃ 5 ℃
Duration: 48 hours

3.3

Humidity Test

Temperature: +40 ℃ 5 ℃
Relative humidity: 90% ~ 95% RH
Duration: 48 hours

3.4

Vibration Test

Vibration: 10Hz ~ 55Hz
Amplitude: 1.5mm or acceleration : 50m/s2
Duration : 2 h per axis = 10cycles ; 3 axis

3.5

Temperature Cycle Test

Temperature: -30 ℃ +80 ℃
Duration : 1hours 1hours
Cycle: 5 Cycle

3.6

Drop Test
(under the unit)

Height: 1.0m
Cycle: 5 Cycle

3. 7

Load Test

Noise: White noise
Power: 2.0W
Duration: 48hours and satisfy the test listed on item 05,08,14.

The test shall be carried out on the parts that passed 12hours in temperature 20℃.
The sensitivity difference from the initial value shall be within ±3dB.

4.Electrical And Acoustical Measuring Condition

5.Frequency Response

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Submission
Mobile phone two-dimensional code

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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

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