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產品中心 > S2027
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S2027

1. SCOPE

This specification is applied to the dynamic speaker for cellular handset。

 

2. GENERAL SPECIFICATIONS

 

2.1

Mechanical Drawing 

With Dimensions

20±0.2mm×27±0.2mm×5.5±0.3mm        as shown Fig3

2.2

Weight

Approx  4.7g

2.3

Operating Temperature

-20℃~+70

2.4

Storage Temperature

-40℃~+80

 

3. SPEAKER MODE

 

3.1

Impedance

8Ω±15% at 2000Hz 1.0V

3.2

Rated Input Power

1.0W

3.3

Max Input Power

2.0W must be normal at a white noise for one minute

3.4

Sound Pressure Level

90±3dB/0.1W 0.1M at 1.0,1.2,1.5,2.0KHz Average

3.5

Resonance Frequency (f0)

700Hz±20% at 1.0V

3.6

Frequency Range

f0Hz20KHz

3.7

Frequency Response Curve

Shown in Fig2

3.8

Buzzer & Rattles

Must be normal sine signal at 2.8V from f0Hz to 20KHz sweeping

3.9

Total Harmonic Distortion

Less than 10% at 1KHz (input 0.8W)

3.10

Polarity

When a positive D.C current is applied to terminal marked(+)diaphragm shall move forward

4. RELIABILITY TESTS

       AFTER TEST

Sound pressure level of speaker difference shall be within ±3dB after test at 1.0,1.2,1.5,2.0KHz Average

   

 

4.1

High  Temperature  Test

High  Temperature:   +55℃±3

Duration :            96 hours

4.2

Low  Temperature  Test

Low  Temperature:    -20℃±3

Duration :            96 hours

4.3

Humidity  Test

Temperature:         +40℃±2

Relative  humidity:    90%96% RH

Duration :            96 hours

4.4

Vibration  Test

Vibration:            10Hz55Hz10Hz   Oct/min

Amplitude:           1.5mm

Duration :            2 hours in each of 3 axes

4.5

Temperature  Cycle  Test

Temperature:         -20      +55

Duration :            2 hours    2 hours

Cycle:               5 Cycle

4.6

Drop  Test

(under the unit)

Height:              1.5m

Cycle:               12 Cycles

4.7

Load  Test

Noise:               White noise (EIA filter)

Power:              1.0 W

Duration:            96 hours

5. STANDARD TEST CONDITIONS

      Temperature:         17℃~25

      Relative Humidity:    45%85%(RH)

      Air Pressure:         860hpa1060hpa

    6. JUDGEMENT TEST CONDITIONS

      Temperature:         20±2

      Relative Humidity:    60%70%(RH)

      Air Pressure:         860hpa1060hpa

7. SPEAKER MODE MEASURING CIRCUIT

1(12).png

(Fig 1)

    8. SPEAKER MODE FREQUENCY RESPONSE CURVE

      A: Frequency Resonance Mage dB re 20.00μPa

2(12).png

(Fig 2)

9. PRODUCT OUTSIDE VIEW

       Unite: mm

      Unless otherwise specified,

 

3(12).png

                                  

                                 (Fig 3)

NO.

PART NAME

MATERIAL

QTY

1

Diaphragm

polyester

1

2

Magnet

Nd Fe B

1

3

Plate

SPCC

1

4

Voice Coil

POLYURETHANE

ENAMELLED WIRE

1

5

Frame

PBT

1

6

PCB

FR-4

1

7

Silk Screen

Adhesive

1

8

Gasket

Adhesive

1

9

Wire

UL1571 AWG32

2

10. PACKING METHOD 

4(12).png

100PCS speaker in per tray

5(3).png   6(1).png

3000 PCS speaker

7(1).png

Remark:

100 pcs per tray

10 trays for unit

1000 pcs per carton

3 carton per box

Total:3000 pcs per box


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