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A. SCOPE 範疇 This specification applies piezo audio indicator, KPEG251 此規格書適用於壓電式蜂鳴器, KPEG251 B. SPECIFICATION 規格 No. 1 2 3 4 5 6 7 8 9 10 11 12 13 Item Operating Frequency 操作頻率 Operating Volt. range 操作電壓範圍 Current consumption 消耗電流 Sound pressure level 輸出音壓 Rated Voltage 額定電壓 Tone 聲音 Operating temp. 操作溫度 Storage temp. 儲存溫度 Dimension 尺寸 Weight (MAX) 重量 Material 材質 Terminal 端子 Environmental Protection Regulation 環保法規 Unit Specification KHz 3.5 ± 0.
D. MEASURING METHOD 測量方法 S.P.L. Measuring Circuit 音壓測試接線圖 Mic : RION S.P.L meter UC30 or equivalent Mic：RION 噪音計 UC30 或同等品 S.G：Hewlett Packard 33120A Function Generator or equivalent S.G：Hewlett Packard 33120A 函數信號產生器或同等品 E.
F. MECHANICAL CHARACTERISTICS 機械特性 No. 1 2 3 4 Item Test Condition Evaluation standard 90% min. stripped wires shall be Solderability Stripped wires of lead wires are immersed in rosin for 5 seconds and wet with solder.(Except the edge 焊錫附著性 of terminal) then immersed in solder bath of +270±5℃ for 3±0.5 seconds. (Connector excepted) 浸入裸線部份附著焊鍚 90%以 裸線部份浸入松香溶液 5 秒後,再浸入+270±5℃溶融焊鍚槽 3±0.5 秒. (端子類不適用此項) 上.(末端斷面不算) The pull force shall be applied to double lead wire： Horizontal 3.0N(0.
H. RELIABILITY TEST 信賴性測試 No. 1 Item Test condition Evaluation standard 1.Continuous life test 高溫壽命測試(連續) 48 hours continuous operation at +70℃ with rated voltage applied. 在+70℃環境下,以額定電壓連續操作 48 小時. Operating life 2.Intermittent life test 室溫壽命測試(間歇) test A duty cycle of 1 minute on, 1 minutes off, a minimum of 5000 times at room 壽命測試 temp.( +25±2℃)and rated voltage applied. 在室溫下(+25±2℃), 以額定電壓操作, 通電 1 分鐘/斷電 1 分鐘,測試 5000 次循環. Being placed for 4 hours at +25℃, buzzer shall be measured.
