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AS04008PS-4W-R

40 x 28mm Speaker

Mechanical and Environment Testing

Test Description

Test Condition

High Temperature

60°C ±2°C with random humidity for 96 hours

Low Temperature

-20°C ±2°C with random humidity for 96 hours

Humidity

40°C with 90% to 95% relative humidity for 96

hours

Vibration

5G constant movement modulated at 10 to 55 Hz

for 2 hours each of 3 axis

Drop Test

100 cm free fall onto 20mm thick board, 6 cycles

Temperature Cycle Test

-20°C to 60°C, 4 cycles (refer to Temperature Cycle

Test Graph)

After tests, speaker shall rest for 1 hours. SPL shall not deviate ±4 dB from pre-test measurement.

Temperature Cycle Test Graph

Thiele-Small Parameters

Specification

Value

Fo (Hz)

380

Qes

3.65

Qms

1.44

Qts

1.03

Vas (mm^3)

17.32k

Sd (mm

600

Mms (g)

0.389

Re (ohm)

7.4

BL (T)

1.32

Frequency Response and SPL Measurement Setup