江苏华能电子有限公司

承 认 书

Specifications

客户承认签署

 公司地址: 江苏省兴化市陈堡镇工业集中区                

 Em.: jshndz208@163.com    Tel: +86-523-83724803   Fax: +86-523-83724866

江苏华能电子有限公司

性能参数 Electrical Characteristics

型号Part No：HNR-2207

1

额定频率 Resonance Frequency (KHz)

4.0

2

最大电压 Max Input Voltage (Vp-p)

30

3

电容量 Capacitance at 1000Hz (nF)

15±30%

4

*声压级Sound Output at 10cm (dB)

≥90 at4.0KHz Square Wave 9Vp-p

5

*消耗电流 Current Consumption (mA)

≤9 at4.0KHz Square Wave9Vp-p

6

工作温度 Operating Temperature (℃)

-20～+70

7

储存温度 Storage Temperature (℃)

-30～+80

8

单品重量 Weight (g)

2.3

9

外壳材料 Housing Material

黑色Black PPO

带*号指标需要在额定电压下测试  *Applying rated voltage

    蜂鸣器焊接方法

Buzzer Soldering process

Soldering  Parameter

温度Temp.(℃)

时间Time(Sec.)

可焊接次数Times

回流焊 Reflow soldering

245±15

180℃预热 40~70秒  245℃ 3秒

above  180℃time40~70

3

★波峰焊 Wave soldering

255±5

4~6

2~3

★手工焊 Manual soldering

350±10

2~5

2~3

接插件

带★号为推荐的焊接方法 Remark:★ Instance Soldering Process

外形图DIMENSIONS（UNIT: mm）  未标注公差按±0.5mm计算  Tolerance:±0.5mm Except Specified

测试方法 TEST METHOD

频响曲线 FREQUENCY RESPONSE

江苏华能电子有限公司

型号 Part No：HNR-2207

可靠性测试 RELIABLY TEST

项目 ITEM

测试条件 TESTING CONDITION

试验后要求

VARIANCE AFTER TEST

高温试验

High Temperature Test

产品置于+80±2℃试验箱中，先工作2小时，然后在正常大气压条件下恢复2小时后，进行测量。

After being worked in a chamber at +80±2℃for 2h and then being placed in natural condition for 2h,sounder shall be measured.

  试验后，声响器的声级变化值在±10dB之内，外观无变化（例如：开裂，氧化，损伤，变形等现象）

  After test,the transducr S.P.L.difference shall be within±10dB,and the appearance not exist any change to be harmful to normal operation(e.g.cracks,rusts,damages and especially distortion)

低温试验

Low Temperature Test

   产品置于-30±2℃试验箱中，先工作2小时，再放置16小时，然后在正常大气压条件下恢复2小时后，进行测量。

    First being worked in a chamber at -30±2℃for 2h and then being planed in a chamber at -30±2℃for16h,finally being placed in natural condition for2h,sounder shall be measured.

恒湿试验

Humidity  Test

   产品置于湿度为90~95%R.H，温度为40±2℃试验箱中48小时，然后在正常大气压条件下恢复2小时后，进行测量。

    After being placed in a chamber with 90 to 95%R.H.at+40±2℃for 48h and then being placed in natural condition for 2h,sounder shall be measured.

振动试验

Vibration  Test

   振幅为0.75mm，频率为10~30~10Hz，三个不同轴方向各振动1小时，试验后测量。

   Sounder shall be measured after being applied vibration of amplitude of 0.75mm with 10 to30 to10Hz band of vibration frequency to each of 3 perpendicular directions for 1hour.

自由落体试验

Freely Falling Test

  在0.8米高处，将产品三方向自由落体在木板上，试验后测量。

  Sounder shall be measured after freely falling the products from 0.8m high to the wooden board with three sides per time.

碰撞试验

Collision  Test

   加速度100±10m/s²，脉冲持续时间16ms，重复频率1~3次/min，次数1000±10次。试验后测量。

    Sounder shall be measured after the test of acceleration 100±10m/s²,impulse lasting time 16ms,repeat frequency 1~3/min and time 1000±10.

可焊性试验

Solderability

   引线剥头/针脚浸入松香焊剂3秒，然后再浸入+250±5℃的锡锅中3±0.5秒，引线剥头表面应覆盖一层光滑明亮的焊料。

    Lead terminals are immersed in rosin for 3 seconds and then immersed in solder bath at +250±5℃for 3±0.5 seconds,terminals should be covered with the clean solder.

引线/针脚强度试验

Terminal Strength Pulling

   引线/针脚应承受1N拉力，拉力时间10秒，引线无松动和脱落等现象。

The force 10 seconds of1N is applied to each terminal in axial direction.no looseness and falling off.