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ITEM
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TESTING CONDITION
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VARIANCE AFTER TEST
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High Temperature Test
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After being placed in a chamber with 85±2℃ for 96 hours and then being placed in natural condition for 2 hours.
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Allowable variation of SPL after test: ±10dB.
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Low Temperature Test
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After being Placed in a chamber with -30±2℃ for 96 hours and then being placed in natural condition for 2 hours.
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Allowable variation of SPL after test: ±10dB.
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Humidity Test
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Stored in the temperature humidity: 60±5℃ 90%--95% environment for 96 hours, and then placed into storage at room temperature for 2 hours after the test.
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Allowable variation of SPL after test: ±10dB.
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Temperature Cycle Test
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After being placed in a chamber with -30±2℃ for 30 minutes, products shall be placed at room temperature(25℃±10℃).After 15 minutes at this temperature, products shall be placed in a chamber at +85±2℃.After 30 minutes at this temperature, products shall be return to room temperature (25℃±10℃) for15 minutes. After 20 above cycles, products shall be measured after being placed in natural condition for 2 hours.
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Allowable variation of SPL after test: ±10dB.
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Drop Test
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The front and side from a height of 100mm only drop in the 4cm thickness of theboard 3 times each.
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Allowable variation of SPL after test: ±10dB.
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Vibration Test
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After being applied vibration of amplitude of 1.5mm with 10 to 55 Hz band of vibration frequency to each of 3 perpendicular directions for 2 hours.
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Allowable variation of SPL after test: ±10dB.
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Solderability Test
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Lead terminals are immersed in rosin for 5 seconds and then immersed in solder bath of 260±5℃ for 3±0.5 seconds (Except the edge of terminals).
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95% min. lead terminals shall be wet with solder
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Continuous electricity test
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Temperature: room temperature 25 ℃
Voltage: rated voltage 3 V
Frequency: the rated frequency for 4.0 KHZ
Time: 500 hours
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Allowable variation of SPL after test: ±10dB.
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Erminal Strength
Pulling Test
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The force of 9.8N(1.0kg) is applied to each terminal in axial direction for
10 seconds.
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No visible damage and cutting off.
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