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RV-8564 数据表(PDF) 32 Page - MICORO CRYSTAL SWITZERLAND |
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RV-8564 数据表(HTML) 32 Page - MICORO CRYSTAL SWITZERLAND |
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32 / 40 page ![]() Micro Crystal Real Time Clock / Calendar Module RV-8564 32/40 16.RECOMMENDED REFLOW TEMPERATURE (LEADFREE SOLDERING) Maximum Reflow Conditions in accordance with IPC/JEDEC J-STD-020C “Pb-free” Temperature Profile Symbol Condition Unit Average ramp-up rate (Tsmax to Tp) 3°C / second max °C / s Ramp down Rate Tcool 6°C / second max °C / s Time 25°C to Peak Temperature Tto-peak 8 minutes max m Preheat Temperature min Tsmin 150 °C Temperature max Tsmax 200 °C Time Tsmin to Tsmax ts 60 - 180 Sec Soldering above liquidus Temperature liquidus TL 217 °C Time above liquidus tL 60 – 150 sec Peak temperature Peak Temperature Tp 260 °C Time within 5°C of peak temperature tp 20 - 40 sec |
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