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      HN ELECTRONIC

      專業從事電磁式蜂鳴器、壓電式蜂鳴器生產及研發

      MLT-9019

      MLT-9019

      MLT-9019

      MLT-9019

      MLT-9019

      產品說明

      1. 測試條件

      產品測試條件:溫度:5~35℃, 濕度:45%~85%R.H., 氣壓:860 ~1060hPa。
      標準測試條件:溫度:25±3℃, 濕度:60±10%R.H.  氣壓:860 ~1060hPa 。

      1 諧振頻率(Hz) 4000±500Hz
      2 工作電壓(Vp-p) 1~20 Vp-p
      3 額定電流(mA) Max.1mA ,at 4KHz 50% duty Square Wave 1.5Vp-p
      4 輸出音壓(dB) Min. 65dB,at 4KHz 50% duty Square Wave 1.5Vp-p
      5 電容量(pF)9000±30%pF at 1KHz
      6 工作溫度(℃) -30℃~+70℃
      7 儲存溫度(℃) -40℃~+85℃
      8 凈重(g) Approx 0.2g
      9 環保 Yes

      2. 尺寸圖 單位: mm

      *基本公差: 除特殊注明外,一般公差為±0.3mm
      *外殼材質: 黑色  LCP

      3.電性能測試條件

      測試裝置


      4.頻響曲線

      方波1.5Vp-p占空比 50% 距離10cm測試


      5.回流焊條件

      5.1 回流焊曲線圖

       

      注意事項: (1) 產品經過回流焊機后,所有電性能要保持在規格書的范圍內。
      (2)回流焊的操作溫度一定要在推薦范圍之內。如果超出范圍都有可能影響到產品的性能。

      5.2 焊盤位置


      6.可靠性測試
      在下面任何一項測試后都要符合以下標準,外觀和電性能(除聲壓外)上不能有不良或衰減現象出現,聲壓不能低于規格說明書的最低聲壓的10dB。

      6.1 壽命測試
      將測試件置于25±10℃的溫度下,輸入額定電壓、占空比為1/2的諧振頻率方波測試96小時。

      6.2 高溫測試
      將測試件置于+80℃的溫度下存放96小時,取出置于常溫下3小時而后測試。

      6.3 低溫測試
      將測試件置于-40℃的溫度下存放96小時,取出置于常溫下3小時而后測試。

      6.4 濕度測試
      將測試件置于溫度+40±3℃,濕度90%~95%的條件下持續48小時,再置于室溫下6小時而后測試。

      6.5 溫度沖擊測試
      將測試件置于以下溫變條件下:70℃2小時→-20℃2小時(1周期),做完一個周期實驗,過1個小時后再繼續下一次實驗,總測試周期數: 10個周期。

      6.6 落地測試
      將測試件標準包裝后(包裝盒的3個邊6個面)從1.2米的高度下跌落到厚木板或5厘米厚的硬木板上。

      6.7 機械振動測試
      按以下條件實驗后再測試:振速:1000次/分;振幅:1.5毫米;時間: 1小時更換一個自由度方向共3個自由度方向。


      注意:
      需避免無關材料進入產品內,無關材料如:磁性材料、水溶性的材料、腐蝕性的氣體等。因為這些無關材料將會影響產品的電性能。

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