1. 简介SCOPE 

 本产品适用于不间断电源，电脑，手机等产品

This specification covers our product of Magnetic Buzzer unit for UPS，Computer, Mobile phone etc. use.

2.外观尺寸图 MECHANICAL LAYOUT & DIMENSIONS

见图 Shown in Fig.4

3.概要 GENERAL REQUIREMENTS

3.1 使用温度OPERATING TEMPERATURE RANGE: -30℃ ~ +70℃

3.2 储存温度Storage Temperature: -40℃ ~ +85℃

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）：84± 3 dB SPL /1.0V/10CM at 2000Hz，in 1cc box

     4.2阻抗 IMPEDANCE：5±20% ? 

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, 950±15% Hz 0.5w/10cm testing in 1cc box

4.5额定功率 Rated Power：0.5W in 1cc box

4.6最大功率Max. Power: 1.0W must be normal white noise  for 1 minute in 1.0cc box

4.7谐波失真DISTORTION ：10%max. (Mounted in 1cc measure box and in a baffle) Test at 2Vrms/10cm fig(3)

4.8纯音检听AUDIBLE NOISE： 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. 0.8g