NS2W123BT NICHIA CORPORATION, NS2W123BT Datasheet - Page 8

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NS2W123BT

Manufacturer Part Number
NS2W123BT
Description
Specifications For Nichia Chip Type White Led
Manufacturer
NICHIA CORPORATION
Datasheet

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(6) Soldering Conditions
· The LEDs can be soldered in place using the reflow soldering method.
· Recommended soldering conditions
2.5 ~ 5°C / sec.
· Occasionally there is a brightness decrease caused by the influence of heat or ambient atmosphere
· The encapsulated material of the LEDs is silicone. Therefore the LEDs have a soft surface on the
· Repairing should not be done after the LEDs have been soldered.
· Reflow soldering should not be done more than two times.
· When soldering, do not put stress on the LEDs during heating.
guarantee on the LEDs after they have been assembled using the dip soldering method.
[Temperature-profile (Surface of circuit board)]
[Recommended soldering pad design]
during air reflow.
top of package.
Precautions should be taken to avoid the strong pressure on the encapsulated part.
the chip mounter, the picking up nozzle that does not affect the silicone resin should be used.
a double-head soldering iron should be used.
characteristics of the LEDs will or will not be damaged by repairing.
Pre-heat
Pre-heat time
Peak
Soldering time
Condition
temperature
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.
2.5 ~ 5°C / sec.
120 ~ 150°C
120sec.Max.
Pre-heating
120 ~ 150°C
120 sec. Max.
240°C Max.
10 sec. Max.
refer to
Temperature - profile
The pressure to the top surface will be influence to the reliability of the LEDs.
It is recommended that the User use the nitrogen reflow method.
Lead Solder
60sec.Max.
Above 200
Reflow Soldering
°C
(Unit : mm)
240°C Max.
10sec. Max.
1
.
180 ~ 200°C
120 sec. Max.
260°C Max.
10 sec. Max.
refer to
(N
Temperature - profile
2
reflow is recommended.)
Use the following conditions shown in the figure.
Lead-free Solder
It should be confirmed beforehand whether the
-7-
1 ~ 5°C / sec.
Use the conditions shown to the under figure.
2
.
1 ~ 5°C / sec.
Temperature
Soldering time
180 ~ 200°C
120sec.Max.
Pre-heating
When repairing is unavoidable,
Hand Soldering
Nichia cannot make a
60sec.Max.
Above 220°C
Nichia STS-DA1-0500C
350°C Max.
3 sec. Max.
(one time only)
So when using
<Cat.No.090602>
260°C Max.
10sec. Max.

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