NS2W157R Nichia, NS2W157R Datasheet - Page 10

• Manufacturer Part Number: NS2W157R
• Manufacturer: Nichia

Specifications of NS2W157R

• Size Lxwxh (mm): 3.0x1.4x0.52
• Lumi-nous Inten-sity Typ(cd): 18.6
• Lumi-nous Flux Typ(lm)): 55.0
• Forward Voltage Vf(v) Typ: 6.40
• Forward Voltage Vf(v) Max: 7.00
• Directivity (degree): 120
• If (ma): 75
• Mounting Style: Through Hole

(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
· 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.
[Temperature-profile (Surface of circuit board) ]
[Recommended soldering pad design]
[Recommended metal solder stencil aperture]
guarantee on the LEDs after they have been assembled using the dip soldering method.
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.
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 customer 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
Use the following conditions shown in the figure.
It should be confirmed beforehand whether the
-9-
1 ~ 5°C / sec.
Use the following conditions shown in the figure.
<
(Unit : mm)
(Unit : mm)
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
Nichia STS-DA1-1142B
350°C Max.
3 sec. Max.
(one time only)
<Cat.No.100513>
260°C Max.
10sec. Max.