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本帖最后由 Ferrya 于 2018-12-24 09:41 编辑
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F2 K. H- I% H% _某韩国品牌瓷片电容容值测试条件！
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4 \) G$ _5 Z3 _$ P1、据厂家品质部描述，某韩国大厂贴片瓷片电容容量普遍偏小约30%，将电容全部退了回去！最后在规格书后面备注发现，其电容规格书有测试的条件如下：
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Note1. Initial Measurement For ClassⅡ
) M, W, G- C" i% pPeRForm the heat treatment at 150℃+0/-10℃ for 1 hour. Then Leave the capacitor in ambient condition for 24±2 hours before measurement.Then perform the measurement.* N c) x1 H) a+ p1 q& n$ B6 s2 ~3 c
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Note2. Latter Measurement0 @0 T/ h. `3 ^* m2 E
1. CLASSⅠ
& \: m- j. K3 G0 e& VLeave the capacitor in ambient condition for 24±2 hours before measurement. Then perform the measurement.
5 u1 S1 }7 F. _) O, ^0 [- C2. CLASSⅡ
1 Y0 ?3 s- j3 Q! kPerform the heat treatment at 150℃+0/-10℃for 1 hour. Then Leave the capacitor in ambient condition for 24±2 hours before measurement.
, M' ~8 E2 Z: B5 ^3 _Then perform the measurement.
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Note3. All Size in Reliability Test Condition Section is “inch”3 M3 {9 Q. G4 z* W
1 O; Q& t& {' f7 e$ ?. lNote4. Camera Strobe Circuit Capacitors Should be Following a Special Reliability Test Condition.$ V/ y9 b& [" N1 o7 c4 x1 ~: K
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发表于 2018-12-24 09:33
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