nssw045t NICHIA CORPORATION, nssw045t Datasheet - Page 8

• Manufacturer Part Number: nssw045t
• Description: Nichia Chip Type White Led
• Manufacturer: NICHIA CORPORATION

(5) Soldering Conditions
· The LEDs can be soldered in place using the reflow soldering method.
· NSSW045 is a lower profile design than our other products. Care must be taken in handling and
· 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.
· Occasionally there is a brightness decrease caused by the influence of heat or ambient atmosphere
guarantee on the LEDs after they have been assembled using the dip soldering method.
assembly of this product in to avoid damage.
[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
<
Use the following conditions shown in the figure.
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.
Use the conditions shown to the under figure.
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
Temperature - profile
Lead Solder
It is recommended that the User use the nitrogen reflow method.
60sec.Max.
Above 200
Reflow Soldering
°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.)
Lead-free Solder
(Unit : mm)
It should be confirmed beforehand whether the
-7-
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-DA1-0638
<Cat.No.090126>
260°C Max.
10sec. Max.