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SOLDERING INSTRUCTIONS TECHNICAL NOTES51www.SunLEDusa.comFig. 5The technical notes in this catalog are subject to change without notice.6. Refer to below diagrams for recommended soldering profiles. a. SMD LEDs: Reflow Soldering %u2013 Pb-Free Solder (Fig. 3) | Pb-Sn Solder (Fig. 4) -No more than two soldering passes except SMD CBIs which should not exceed one pass b. Through-hole LEDs: Wave Soldering %u2013 Pb-Free Solder (Fig. 5) | Pb-Sn Solder (Fig. 6) -No more than one soldering pass1. Manual soldering operations should only be for repairs and reworks unless otherwise noted on product specifications. 2. Maximum soldering iron temperatures for manual soldering: a. Pb-Sn solder: 300%u00b0C b. Pb-Free solder: 350%u00b0C c. All LEDs using InGaN material (e.g. Blue, Green, White): 280%u00b0C3. The soldering iron should never touch the epoxy lens. Contact duration with the component should not exceed 3 seconds.4. Do not apply stress or pressure to the leads when the component is heated above 80%u00b0C as possible damage to the internal wire bonds may occur.5. During soldering, component covers and holders should leave enough clearance to avoid any stress applied to the LED. Refer to below diagram (Fig. 2) for examples of proper method.SOLDERING INSTRUCTIONSFig. 3Fig. 4 Fig. 6Fig. 20.5mm Min.0.25mm Min.0.25mm Min.Holder Holder= Correct= IncorrectHolder Holder Holder 0.5mm Min. 0.5mm Min. 0.5mm Min.PCB PCB PCB PCB PCB