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mlcc片式多層陶瓷電容器工藝技術(shù)-資料下載頁(yè)

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【正文】 g(glass epoxy boards)shown in Fig .a using a eutectic solder. Then apply a force in the direction shown in Fig .b. The soldering shall be done with the reflow method and 40b100bcshall be conducted with care so that the soldering is uniform and free of defects such as heat shock.t: Fig: apressurizingspeed:pressurizeFlexure≤1Capacitance meter metterFig. b5020R230454511Solderability 90% of the terminations is to be soldered evenly and continuously.Immerse the test capacitor into a methanol solution containing rosin for 3 to 5 seconds, preheat it 150 to 180℃ for 2 to 3 minutes and immerse it into molten solder of 235177。5℃ for 2 177。.12Resistance to Soldering HeatVisual No visible damageSpecial preconditioning 1hr at 150℃ followed by 24hrs (Y5V).Preheat the capacitor at 150℃for 1 minute. Immerse the capacitor in an eutectic solder solution at 260177。5℃ for 10177。1seconds. Recovery it, let sit at room temperature for 48177。4hrs(Y5V)Cap.ChangeY5V: 177。20%13Rapid change of temperatureVisualNo visible damageSpecial preconditioning 1hr at 150℃ followed by 24hrs (Y5V).Fix the capacitor to supporting jig. According to subclause of GB/T9324. Y5V: θ1=30℃, θ2=85℃t1=30min, 5 cycles, recovery 24177。2hrs.Cap. ChangeY5V: 177。20%14AdhesionNo visible damageAccording to subclause of GB/T9324F=5N, t=10177。1s15Climatic SequenceVisualNo visible damage Special preconditioning 1hr at 150℃ followed by 24hrs (Y5V).Dry Heat (IEC6822 test Ba): When reaching the maximum operating temperature, the sample should be put into the test chamber immediately:85℃( Y5V), t=16hrs。Damp Heat, The First Cycle (IEC68230 test Db): t=24hrs, then endure the cold test at once。Cold (IEC6821 test Aa): When reaching the minimum operating temperature, the sample should be put into the test chamber immediately:30℃(Y5V), t=2hrs。Damp Heat, The Remaining 9 Cycles (IEC68230 test Db): t=24hrs/cycle.Recover it, let sit at room temperature for 48177。4hrs (Y5V), then observe appearance and measure electrical characteristics. (Related STD: IEC 384 10 )Cap. ChangeY5V: 177。20%Tangent of loss angleY5V:tgδ≤1000104 , (UR≥25V)tgδ≤1600104 , (UR≤16V)Insulation ResistancesY5V:Ri≥1000MΩ or RiC≥5 MΩμFwhich is smaller16Damp Heat,Steady StateVisualNo visible damageSpecial preconditioning 1hr at 150℃ followed by 24hrs (Y5V).According to subclause of GB/T9324.Test Temperature: 40℃177。2℃RH 90~95%Duration: 21d, recovery 24177。2hrs.Cap. ChangeY5V: 177。30%Tangent of loss angleY5V:tgδ≤1000104, (UR≥25V)tgδ≤1600104 , (UR≤16V)Insulation ResistancesY5V:Ri≥1000MΩ or RiC≥5 MΩμF which is smaller17VibrationNo visible damage.Cap. Change:Y5V: 177。20%tgδ: as in According to Test Fc of IEC6006826. Sample shall be mounted on a suitable substrate, the amplitude of , the frequencies from 10 to 55Hz, and back to 10 Hz in about 1 min,. Repeat this for 2hrs each in 3 perpendicular direction, total 6hrs.18EnduranceVisualNo visible damageSpecial preconditioning 1hr at 150℃ followed by 24hrs (Y5V).According to subclause of GB/T9324.Test Temperature:85℃(Y5V)Duration: 1000hrsVoltage: UR, recovery 24177。2hrs.Cap. ChangeY5V:177。30%Tangent of loss angleY5V:tgδ≤1000104 , (UR≥25V)tgδ≤1600104 , (UR≤16V)Insulation ResistancesY5V:Ri≥2000MΩ or RiC≥5 MΩμFwhich is smaller36 / 3
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