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xrm@czfhd.com
Address:Zhenglu Town, Tianning District,

Changzhou, Jiangsu

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S2509-08

1. SPECIFICATIONSpeaker1Dimension25*92Net WeightApprox 1.4g3Impedance8±15%Ω/2KHz/1Vrmsinput4RatedInputPower0.5W5MaxInputPower0.7W6LowestResonanceFrequency500±120Hz/1V7FrequencyRangeF0~10KHz8AudibleNoi
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1. SPECIFICATION

Speaker

1

Dimension

25*9

2

Net Weight

Approx 1.4g

3

Impedance

8±15% Ω /2KHz/1Vrms input

4

Rated Input Power

0.5W

5

Max Input Power

0.7W

6

Lowest Resonance Frequency

500±120 Hz/1V

7

Frequency Range

F0 ~ 10KHz

8

Audible Noise

Should not be audible at 2.0 V(in 1cc box) sine wave between(F0  ~ 10KHz)

9

Sound Pressure Level

92±3 dB@ 2.83Vrms/10cm at 1 KHz

10

THD in1cc Box

Less than 10% 1KHz input1V,in 1cc box.

11

Polarity

When a positive DC Current is applied to the voice coil terminal marked +or red ,the diaphragm shall move forward

12

Operating Temperature

-20℃~+60℃

13

Store Temperature

-30℃~+70℃

2. D  2. Dimensions

Unit: mm

*Unit: mm; Tolerance: ±0.5mm Except Specifie

 

3. Reliability Test 可靠性測試

3-1

High temp. Test

Keep 96 hours at +70℃±3℃ and leave 3 hours in normal temperature and then check

3-2

Low temp. Test

Keep 96 hours at -30℃±3℃ and leave 3 hours in normal temperature and then check

3-3

Humidity test

Keep 96 hours at + 60℃±3℃ relative humidity 95% and leave 3 hours in normal temperature and then checked.

3-4

Thermal cycle test.

Low temperature: -25℃±3℃, temperature:+65℃±3℃,

cycle: 1 hour/cycle each, and then keep 5 cycles in a room.

3-5

Vibration

10~200~10Hz sin-wave sweep 15min. 5G(constant)

X, Y, Z 3 direction. 2 hours each, total 6 hours.

3-6

Drop test

Free drop a unit from 100cm height to a board of 20mm thick x, y, z 6 direction. 1 time each, total 6 times.

3-7

Load test

Rated Power white noise is applied for 96 hours

3-8

Max Power test

Max power 1 min on – 2 min off 10 cycles.

 

 

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。

 

4. Electrical And Acoustical Measuring Condition

5.Frequency Response

6.PACKING

 

Corresponding parameter set not found, please add it in property template of background
暂未实现,敬请期待
暂未实现,敬请期待
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