nssw088at NICHIA CORPORATION, nssw088at Datasheet - Page 8

• Manufacturer Part Number: nssw088at
• Description: Specifications For Nichia Chip Type White Led
• Manufacturer: NICHIA CORPORATION

(5) 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
· 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
Use the conditions shown to the under figure.
Use the following conditions shown in the figure.
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>
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
4
Temperature - profile
1.4
Lead Solder
It is recommended that the User use the nitrogen reflow method.
: Solder resist
60sec.Max.
Above 200
9.8
Reflow Soldering
1.4
°C
4
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.)
Lead-free Solder
It should be confirmed beforehand whether the
-7-
(Unit : mm)
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-DA1-0420
<Cat.No.080731>
260°C Max.
10sec. Max.