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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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HLMP-AL62-X10DD Fiches technique(PDF) 8 Page - AVAGO TECHNOLOGIES LIMITED |
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HLMP-AL62-X10DD Fiches technique(HTML) 8 Page - AVAGO TECHNOLOGIES LIMITED |
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8 / 11 page  8 Precautions: Lead Forming: • The leads of an LED lamp may be preformed or cut to length prior to insertion and soldering on PC board. • For better control, it is recommended to use proper tool to precisely form and cut the leads to applicable length rather than doing it manually. • If manual lead cutting is necessary, cut the leads after the soldering process. The solder connection forms a mechanical ground which prevents mechanical stress due to lead cutting from traveling into LED package. This is highly recommended for hand solder operation, as the excess lead length also acts as small heat sink. Soldering and Handling: • Care must be taken during PCB assembly and soldering process to prevent damage to the LED component. • LED component may be effectively hand soldered to PCB. However, it is only recommended under unavoidable circumstances such as rework. The closest manual soldering distance of the soldering heat source (soldering iron’s tip) to the body is 1.59mm. Soldering the LED using soldering iron tip 1.59mm closer than 1.59mm might damage the LED. • ESD precaution must be properly applied on the soldering station and personnel to prevent ESD damage to the LED component that is ESD sensitive. Do refer to Avago application note AN 1142 for details. The soldering iron used should have grounded tip to ensure electrostatic charge is properly grounded. • Recommended soldering condition: Wave Soldering [1, 2] Manual Solder Dipping Pre-heat temperature 105 °C Max. - Preheat time 60 sec Max - Peak temperature 250 °C Max. 260 °C Max. Dwell time 3 sec Max. 5 sec Max Note: 1. Above conditions refers to measurement with thermocouple mounted at the bottom of PCB. 2. It is recommended to use only bottom preheaters in order to reduce thermal stress experienced by LED. • Wave soldering parameters must be set and maintained according to the recommended temperature and dwell time. Customer is advised to perform daily check on the soldering profile to ensure that it is always conforming to recommended soldering conditions. Note: 1. PCB with different size and design (component density) will have different heat mass (heat capacity). This might cause a change in temperature experienced by the board if same wave soldering setting is used. So, it is recommended to re-calibrate the soldering profile again before loading a new type of PCB. 2. Avago Technologies’ high brightness LED are using high efficiency LED die with single wire bond as shown below. Customer is advised to take extra precaution during wave soldering to ensure that the maximum wave temperature does not exceed 250°C and the solder contact time does not exceeding 3sec. Over-stressing the LED during soldering process might cause premature failure to the LED due to delamination. Avago Technologies LED configuration Anode Note: Electrical connection between bottom surface of LED die and the lead frame is achieved through conductive paste. • Any alignment fixture that is being applied during wave soldering should be loosely fitted and should not apply weight or force on LED. Non metal material is recommended as it will absorb less heat during wave soldering process. Note: In order to further assist customer in designing jig accurately that fit Avago Technologies’ product, 3D model of the product is available upon request. • At elevated temperature, LED is more susceptible to mechanical stress. Therefore, PCB must allowed to cool down to room temperature prior to handling, which includes removal of alignment fixture or pallet. • If PCB board contains both through hole (TH) LED and other surface mount components, it is recommended that surface mount components be soldered on the top side of the PCB. If surface mount need to be on the bottom side, these components should be soldered using reflow soldering prior to insertion the TH LED. • Recommended PC board plated through holes (PTH) size for LED component leads. LED component lead size Diagonal Plated through hole diameter 0.45 x 0.45 mm (0.018x 0.018 inch) 0.636 mm (0.025 inch) 0.98 to 1.08 mm (0.039 to 0.043 inch) 0.50 x 0.50 mm (0.020x 0.020 inch) 0.707 mm (0.028 inch) 1.05 to 1.15 mm (0.041 to 0.045 inch) • Over-sizing the PTH can lead to twisted LED after clinching. On the other hand under sizing the PTH can cause difficulty inserting the TH LED |
Numéro de pièce similaire - HLMP-AL62-X10DD |
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Description similaire - HLMP-AL62-X10DD |
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