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SML-811WT Datasheet(PDF) 9 Page - Rohm |
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SML-811WT Datasheet(HTML) 9 Page - Rohm |
9 / 11 page [Data Sheet] Ultrasonic Cleaning 15W/Below 1 liter (capacity of tank) Drying Under 100℃ within 3 minutes furnaces vary by customer’s own conditions. So thermal stress by soldering greatly influence its reliability. Please keep following points for manual soldering. ITEM a) Heating method b) Handling after soldering Please handle after the part temp. goes down to room temp. [SML-811x(C) series] 4-6.Reflow Profile For reflow profile, please refer to the conditions below:(※) ■Meaning of marks, Conditions Mark Meanings Conditions Tsmax Peak temperature 260℃(Max) tP Time for peak temperature Within 10sec. Maximum of pre-heating temperature 180℃ Tsmin Minimum of pre-heating temperature 140℃ ts Time from Tsmin to Tsmax Over 60sec. TL Reference temperature 230〜260℃ Temperature Under 30℃ within 3 minutes Heating on PCB pattern, not direct to the LED. (Fig-1) 4-7.Attention Points in Soldering Operation This product was developed as a surface mount LED especially suitable for reflow soldering. So reflow soldering is recommended. In case of implementing manual soldering, please take care of following points. ①SOLDER USED Sn-Cu,Sn-Ag-Cu,Sn-Ag-Bi-Cu ②HAND SOLDERING CONDITION Condition ) Temp. of iron top less than 400℃ within 3 sec. 4-8.Cleaning after Soldering Please follow the conditions below if the cleaning is necessary after soldering. Solvent We recommend to use alcohols solvent such as, isopropyl alcohols LED products do not contain reinforcement material such as a glass fillers. RECOMMENDED CONDITION ΔTR/Δt Temperature rising rate Under 3℃/sec. ΔTD/Δt Temperature decreasing rate Over -3℃/sec. ※Above conditions are for reference. Therefore, evaluate by customer’s own circuit boards and reflow furnaces before using, because stress from circuit boards and temperature variations of reflow tL Retention time for TL Within 40sec. TP Fig-1 SOLDERING IRON SOLDERING LAND ________________________________________________________ www.rohm.com ©2016 ROHM Co., Ltd. All rights reserved 9/9 2017.5 - Rev.005 |
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