Datasheet

志豐電子股份有限公司 KINGSTATE ELECTRONICS CORP 4/5 KPEG276A
F. ENVIRONMENT TEST 環境測試
No Item Test Condition Evaluation standard
1
High temp. test
高溫測試
After being placed in a chamber at +95℃ for 240 hours
置於+95℃環境中240 小時
2
Low temp. test
低溫測試
After being placed in a chamber with –40℃for 240 hours
置於-40℃ 環境中240 小時
3
Humidity test
相對濕度測試
After being placed in a chamber at +40℃ and 90±5% relative humidity
for 240 hours
置於+40℃, 相對濕度 90±5% 環境中240 小時
4
Temp. cycle test
溫度循環試驗
The part shall be subjected to 5 cycles. One cycle shall be consist of:
單體承受溫度循環測試5次,其循環內容如圖示:
+95℃
+25℃ +25℃
-40℃
0.5hr 0.5hr 0.25 0.5hr 0.5hr 0.5hr 0.25
3hours
Being placed for 4 hours at
+25℃, buzzer shall be
measured. The value of
oscillation frequency/ current
consumption should be in ±10%
compared with initial ones .The
SPL should be in ±10dB
compared with initial one.
經測試後, 靜置於+25℃（室溫）
環境中4小時後
,諧振頻率與消耗
電流變化量須在±10%內. 輸出音
壓變化量須在±10dB 內.
G. RELIABILITY TEST 信賴性測試
No. Item Test condition Evaluation standard
1
Operating life
test
壽命測試
1.Continuous life test 高溫壽命測試(連續)
48hours 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.
2.Intermittent life test 室溫壽命測試(間歇)
A duty cycle of 1 minute on,1 minutes off, a minimum of 5000 times at room
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. The value of
oscillation frequency/ current
consumption should be in ±10%
compared with initial ones .The
SPL should be in ±10dB
compared with initial one.
經測試後, 靜置於+25℃（室溫）
環境中 4 小時後,諧振頻率與消耗
電流變化量須在±10%內. 輸出音
壓變化量須在±10dB 內.
TEST CONDITION.
Standard Test Condition : a) Temperature : +5 ~ +35ºC b) Humidity : 45-85% c) Pressure : 860-1060mbar
一般測試條件 : a) 溫度 : +5 ~ +35ºC b) 濕度 : 45-85% c) 氣壓 : 860-1060mbar
Judgement Test Condition : a) Temperature : +25±2ºC b) Humidity : 60-70% c) Pressure : 860-1060mbar
爭議時測試條件 : a) 溫度 : +25 ±2ºC b) 濕度 : 60-70% c) 氣壓 : 860-1060mbar