本产品适用于便携式电脑，手机等产品
This specification covers our product of Magnetic Buzzer unit for NB Computer, Mobile phone etc. use.
2.外观尺寸图 MECHANICAL LAYOUT & DIMENSIONS
见图五 Shown in Fig.5
3.概要 GENERAL REQUIREMENTS
3.1 使用温度OPERATING TEMPERATURE RANGE: -20℃ ~ +60℃
3.2 储存温度Storage Temperature: -30℃ ~ +70℃
3.3 标准测试条件STANDARD TEST CONDITIONS:
温度Temperature: 17～25℃ 湿度Relative Humidity: 45%～80%(RH)
大气压力Air Pressure: 860～1060 MPa
3.4 仲裁测试条件JUDGEMENT CONDITIONS:
温度Temperature: 20±2℃ 湿度Relative Humidity: 60%～70%(RH)
大气压力Air Pressure: 860～1060 MPa
4. 扬声器规格 SPEAK ELECTRICAL AND ACOUSTICAL SPECIFICATION
4.1 声压级 Sound Press Level（SPL）：93±3 dB SPL /1.0W/10CM at 2000Hz
4.2 阻抗 IMPEDANCE：8±15% Ω
4.3 频响曲线FREQUENCY RESPONSE CURVE: As shown in fig(2)
4.4 谐振频率RESONANCE FREQUENCY: 700±20%Hz in free air
4.5 额定功率 Rated Power：1.0W in 1CC box
4.6 最大功率Max. Power: 1.5W must be normal white noise (1.5W) for 1 minute in 1.0cc box
4.7 谐波失真DISTORTION ：10% max. 2kHz (Mounted in 1cc measure box and in a baffle) Test at 1W/10cm fig(3)
4.8 纯音检听AUDIBLE NOISE：2.0V Must be free audible noise 300Hz 10KHz; 2.0Vrms, while testing in 1cc box.
4.9 极性POLARITY: Right side is the “+”,As show in the picture
4.10 重量Weight：Approx. 2.0g
■测试方法图MEASURING CIRCUIT (Fig.1)
Fig.1 measuring diagram
■频率响应曲线图TYPICAL FREQUENCY RESPONSE CURVE (Fig.2)
Fig.2 Typical frequency response curve
■失真曲线图SPEAKER DISTORTION CURVE(fig.3)
Fig.3 Typical distornition frequency response curve
5. 可靠性测试 RELIABILITY TESTS
扬声器进行下列测试后SPL变化不允许超出±5dB，不允许有任何机械或者热损伤。
The sound pressure as specified shall neither deviate more than ±5dB from the initial value, nor any significant damage after any of following testing.
5.1 高温试验 HIGH TEMPERATURE TEST
High temperature: +70±2℃
Duration: 16 hours
5.2 低温试验LOW TEMPERATURE TEST
Low temperature : -30±2℃
Duration: 16 hours
5.3 冷热冲击试验HEAT SHOCK TEST
High temperature: +70±2℃
Low temperature: -30±2℃
Changeover time: < 30 seconds
Duration: 1 hour
Cycle: 5
5.4 高温高湿试验HUMIDITY TEST
Temperature: +40±2℃
Relative humidity: 90～95%
Duration: 16 hours
5.5 高低温循环试验TEMPERATURE CYCLE TEST
Temperature: -30℃ +20℃ +70℃
Duration: 30 minutes 15 minutes 30 minutes
Temperature gradient: 1~3℃/min.
Cycle: 5
5.6 跌落试验DROP TEST
Free drop a unit to the surface of 10mm thick board
Height: 100cm
Cycle: 6 (1 each plain) onto the concrete board
5.7 可靠性试验Load test
White Noise.:20~20kHz Rated Power: 1.0W 96Hours in 1cc box
6. 外形图DIMENSIONS
Unless otherwise specified, tolerance: ±0.5 (unit: mm)
6. 外形图DIMENSIONS
Unless otherwise specified, tolerance: ±0.5 (unit: mm)
| 9 | 前贴 Sponge | |||
| 8 | 焊片SPRING TERMINAL | SUS | 2 | |
| 7 | 前盖 FRONT CAP | PPA or PBT | 1 | |
| 6 | 音圈 VOICE COIL | COPPER WIRE | 1 | |
| 5 | 膜片 DIAPHRAGM | PEEK or PEN | 1 | |
| 4 | U铁 U YOKE | SPCC | 1 | |
| 3 | 极片 POLE PIECE | SPCC | 1 | |
| 2 | 磁钢 MAGNET | Nd | 1 | |
| 1 | 主架 FRAME | PPA or PBT | 1 | |
| 编号No. | 零件名称PART NAME | 材料 MATERIAL | 数量Q’TY | 备注REMARK |
Fig4. Outer dimension
