1640 Aluminum shell
面议
Part No: 1625 Aluminum shell
| MAX Operating Voltage (vp_p) | 120 |
| *Sound Output at 10cm (dB) | ≥112 |
| *Curent Consumption (mA) | ≤5 |
| Resonant Frequency(Hz) | 25000±100% |
| Capacitance at 1000Hz (nF) | 2400±20% |
| Operating Temperature (℃) | -25~+80 |
| Storage Temperature (℃) | -25~+80 |
| Housing Material | Aluminum shell |
| Environmental Protection Regulation | RoHS |
| ITEM | TESTING CONDITION | VARIANCE AFTER TEST |
|---|---|---|
| High Temperature Test | After being placed in a chamber with 85±2℃ for 96 hours and then being placed in natural condition for 2 hours. | Allowable variation of SPL after test: ±10dB. |
| Low Temperature Test | After being Placed in a chamber with -30±2℃ for 96 hours and then being placed in natural condition for 2 hours. | Allowable variation of SPL after test: ±10dB. |
| Humidity Test | 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. | Allowable variation of SPL after test: ±10dB. |
| Temperature Cycle Test | 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. | Allowable variation of SPL after test: ±10dB. |
| Drop Test | The front and side from a height of 100mm only drop in the 4cm thickness of theboard 3 times each. | Allowable variation of SPL after test: ±10dB. |
| Vibration Test | 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. | Allowable variation of SPL after test: ±10dB. |
| Solderability Test | 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). | 95% min. lead terminals shall be wet with solder |
| Continuous electricity test |
Temperature: room temperature 25 ℃ Voltage: rated voltage 3 V Frequency: the rated frequency for 4.0 KHZ Time: 500 hours |
Allowable variation of SPL after test: ±10dB. |
| Erminal Strength Pulling Test | The force of 9.8N(1.0kg) is applied to each terminal in axial direction for 10 seconds. | No visible damage and cutting off. |
Temperature:25±2℃ Humidity:45-65%
The oscillation frequency, current consumption and sound pressure are measured by the measuring instruments shown below
In the measuring test, buzzer is placed as follows:
