NSSW109T View Datasheet(PDF) - Nichia Corporation
Part Name
Description
Manufacturer
NSSW109T Datasheet PDF : 13 Pages
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Nichia STSE-CC7168A
<Cat.No.070720>
(4) Soldering Conditions
· The LEDs can be soldered in place using the reflow soldering method. Nichia cannot make a
guarantee on the LEDs after they have been assembled using the dip soldering method.
· Recommended soldering conditions
Reflow Soldering
Hand Soldering
Lead Solder Lead-free Solder
Pre-heat
Pre-heat time
Peak
temperature
120 ~ 150°C
120 sec. Max.
240°C Max.
180 ~ 200°C
120 sec. Max.
260°C Max.
Temperature 350°C Max.
Soldering time 3 sec. Max.
(one time only)
Soldering time 10 sec. Max.
Condition
refer to
10 sec. Max.
refer to
Temperature Temperature
- profile 1.
- profile 2.
(N2 reflow is
recommended.)
Although the recommended soldering conditions are specified in the above table, reflow or hand
soldering at the lowest possible temperature is desirable for the LEDs.
A rapid-rate process is not recommended for cooling the LEDs down from the peak temperature.
[Temperature-profile (Surface of circuit board)]
Use the conditions shown to the under figure.
<1 : Lead Solder>
<2 : Lead-free Solder>
2.5 ~ 5°C / sec.
2.5 ~ 5°C / sec.
240°C Max.
Pre-heating
10sec. Max.
120 ~ 150°C 60sec.Max.
Above 200°C
1~ 5°C / sec.
1~ 5°C / sec.
260°C Max.
Pre-heating
10sec. Max.
180 ~ 200°C 60sec.Max.
Above 220°C
120sec.Max.
[Recommended soldering pad design]
Use the following conditions shown in the figure.
9.5
4
4
1.5
1.5
120sec.Max.
: Solder resist
(Unit : mm)
· Occasionally there is a brightness decrease caused by the influence of heat or ambient atmosphere
during air reflow. It is recommended that the User use the nitrogen reflow method.
· Repairing should not be done after the LEDs have been soldered. When repairing is unavoidable,
a double-head soldering iron should be used. It should be confirmed beforehand whether the
characteristics of the LEDs will or will not be damaged by repairing.
· Reflow soldering should not be done more than two times.
· When soldering, do not put stress on the LEDs during heating.
· After soldering, do not warp the circuit board.
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