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T498C227K006AHE500 Datasheet(PDF) 11 Page - Kemet Corporation |
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T498C227K006AHE500 Datasheet(HTML) 11 Page - Kemet Corporation |
11 / 18 page © KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com T2053_T498_AUTO • 8/10/2016 11 11 Tantalum Surface Mount Capacitors – Automotive Grade T498 Series Automotive Grade MnO2 150°C Soldering Process KEMET’s families of surface mount capacitors are compatible with wave (single or dual), convection, IR, orvaporphasereflowtechniques.Preheatingofthese components is recommended to avoid extreme thermal stress.KEMET'srecommendedprofileconditionsfor convectionandIRreflowreflecttheprofileconditionsofthe IPC/J–STD–020D standard for moisture sensitivity testing. Thedevicescansafelywithstandamaximumofthreereflow passes at these conditions. PleasenotethatalthoughtheX/7343–43casesizecan withstandwavesoldering,thetallprofile(4.3mmmaximum) dictates care in wave process development. Hand soldering should be performed with care due to the difficultyinprocesscontrol.Ifperformed,careshouldbe taken to avoid contact of the soldering iron to the molded case. The iron should be used to heat the solder pad, applying solder between the pad and the termination, until reflowoccurs.Oncereflowoccurs,theironshouldbe removed immediately. “Wiping” the edges of a chip and heating the top surface is not recommended. Duringtypicalreflowoperations,aslightdarkeningofthe gold-colored epoxy may be observed. This slight darkening is normal and not harmful to the product. Marking permanency is not affected by this change. Profile Feature SnPb Assembly Pb-Free Assembly Preheat/Soak Temperature Minimum (TSmin) 100°C 150°C Temperature Maximum (TSmax) 150°C 200°C Time (ts) from Tsmin to Tsmax) 60 – 120 seconds 60 – 120 seconds Ramp-up Rate (TL to TP) 3°C/seconds maximum 3°C/seconds maximum Liquidous Temperature (TL) 183°C 217°C Time Above Liquidous (tL) 60 – 150 seconds 60 – 150 seconds Peak Temperature (TP) 220°C* 235°C** 250°C* 260°C** Time within 5°C of Maximum Peak Temperature (tP) 20 seconds maximum 30 seconds maximum Ramp-down Rate (TP to TL) 6°C/seconds maximum 6°C/seconds maximum Time 25°C to Peak Temperature 6 minutes maximum 8 minutes maximum Note: All temperatures refer to the center of the package, measured on the package body surface that is facing up during assembly reflow. *Case Size D, E, P, Y, and X **Case Size A, B, C, H, I, K, M, R, S, T, U, V, W, and Z Storage Tantalum chip capacitors should be stored in normal working environments. While the chips themselves are quite robust in other environments, solderability will be degraded by exposure to high temperatures, high humidity, corrosive atmospheres, and long term storage. In addition, packaging materials will be degraded by high temperature – reels may soften or warp and tape peel force may increase. KEMET recommends that maximum storage temperature not exceed 40ºC and maximum storagehumiditynotexceed60%relativehumidity.Temperaturefluctuationsshouldbeminimizedtoavoidcondensation onthepartsandatmospheresshouldbefreeofchlorineandsulphurbearingcompounds.Foroptimizedsolderabilitychip stock should be used promptly, preferably within three years of receipt. Time T smin 25 T smax T L T P Maximum Ramp Up Rate = 3ºC/sec Maximum Ramp Down Rate = 6ºC/sec t P t L t s 25ºC to Peak |
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