nssm225t NICHIA CORPORATION, nssm225t Datasheet - Page 7

• Manufacturer Part Number: nssm225t
• Description: Specifications For Nichia Chip Type Full Color Led
• Manufacturer: NICHIA CORPORATION

(5) Soldering Conditions
· Occasionally there is a brightness decrease caused by the influence of heat or ambient atmosphere
· The LEDs can be soldered in place using the reflow soldering method.
· Recommended soldering conditions
2.5 ~ 5°C / sec.
· 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.
· After soldering, do not warp the circuit board.
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.
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
A rapid-rate process is not recommended for cooling the LEDs down from the peak temperature.
soldering at the lowest possible temperature is desirable for the LEDs.
1
: Lead Solder>
1.55
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
1.4
4.5
Lead Solder
It is recommended that the User use the nitrogen reflow method.
60sec.Max.
Above 200
Reflow Soldering
1.55
°C
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
(Unit : mm)
It should be confirmed beforehand whether the
-6-
Use the conditions shown to the under figure.
1 ~ 5°C / sec.
<
2
: Lead-free Solder>
2
.
Temperature
Soldering time
1 ~ 5°C / sec.
180 ~ 200°C
120sec.Max.
Pre-heating
When repairing is unavoidable,
Hand Soldering
Nichia cannot make a
60sec.Max.
Above 220°C
350°C Max.
3 sec. Max.
(one time only)
Nichia STS-DA1-0125
<Cat.No.080314>
260°C Max.
10sec. Max.