Document
NICHIA STS-DA1-3118B
NICHIA CORPORATION SPECIFICATIONS FOR WHITE LED
NC4W121AT
● Pb-free Reflow Soldering Application ● Built-in ESD Protection Device ● RoHS Compliant
SPECIFICATIONS
NICHIA STS-DA1-3118B
(1) Absolute Maximum Ratings
Item
Symbol
Absolute Maximum Rating
Forward Current
IF 1200
Pulse Forward Current
IFP
1500
Allowable Reverse Current
IR
85
Power Dissipation PD 17.7
Operating Temperature
Topr
-40~125
Storage Temperature
Tstg
-40~125
Junction Temperature
TJ
150
* Absolute Maximum Ratings at TS=25°C.
* IFP conditions with pulse width ≤10ms and duty cycle ≤10%.
Unit mA mA mA W °C °C °C
(2) Initial Electrical/Optical Characteristics
Item
Symbol
Condition
Typ
Max
Forward Voltage Luminous Flux
VF IF=1000mA Φv IF=1000mA
Chromaticity Coordinate
x y
- IF=1000mA - IF=1000mA
Thermal Resistance
RθJS_real RθJS_el
-
* Characteristics at TS=25°C.
* Luminous Flux value as per CIE 127:2007 standard.
13.6 1240 0.327 0.337 1.3 0.9
1.7 1.2
* Chromaticity Coordinates as per CIE 1931 Chromaticity Chart.
* RθJS_real are decided by taking into account energy conversion efficiency. Please refer to JESD51.
Unit V lm -
°C/W °C/W
1
RANKS
NICHIA STS-DA1-3118B
Item Forward Voltage
Luminous Flux
Rank G1200 G1000
Min 11.6 1200 1000
Color Ranks
x 0.317 y 0.311
Rank ca1
0.317
0.330
0.329
0.323
0.329 0.321
Max 14.8 1400 1200
Unit V
lm
Rank ca2
x
0.317
0.317
0.321
0.335
0.330
y
0.329
0.332
0.340
0.333
0.323
Rank ca3
x
0.321
0.327
0.340
0.335
y
0.340
0.350
0.343
0.333
Rank ca4
x
0.327
0.342
0.342
0.340
y
0.350
0.360
0.347
0.343
Rank cb1a
x
0.335
0.335
0.348
0.347
0.338
y
0.335
0.349
0.343
0.341
0.333
Rank cb4a
x
0.345
0.354
0.360
0.360
0.358
y
0.370
0.376
0.373
0.367
0.363
Rank cba
x
0.335
0.335
0.342
0.345
0.358
0.348
y
0.349
0.356
0.368
0.370
0.363
0.343
* Ranking at TS=25°C. * Forward Voltage Tolerance: ±0.11V
* Luminous Flux Tolerance: ±7%
* Chromaticity Coordinate Tolerance: ±0.005
* LEDs from the above ranks will be shipped.
The rank combination ratio per shipment will be decided by Nichia.
2
CHROMATICITY DIAGRAM
0.45
NICHIA STS-DA1-3118B
0.40 0.35 0.30
cb4a cba
ca4 ca3 ca2
ca1
cb1a
y
0.25
0.20 0.20
0.25
0.30
0.35 x
0.40
0.45
3
OUTLINE DIMENSIONS
* はRoHSにしております。 This product complies with RoHS Directive.
* でまれたはです。 The dimension(s) in parentheses are for reference purposes.
Cathode Mark
NICHIA STS-DA1-3118B
NC4W121A No. STS-DA7-5985B ( Unit: mm, T(oleranUcnei:t:±m0.m1)
(1.2) 2.5
(0.65)
(0.225)
(4.65) 5.1
0.75
Cathode
Anode
0.68 4.8
2.2
Item
パッケージ Package Materials
Phosphor sheet
Materials
Description
セラミックス Ceramics
ガラス(り) Hard Glass (with phosphor)
Encapsulating Resin
Materials
シリコーン Silicone Resin
Electrodes Materials
Weight
メッキ Au-plated
0.028g(TYP)
* バリはにまないものとします。 Dimensions do not include mold flash.
KA
Protection Device
4
SOLDERING
• Reflow Soldering Condition(Lead-free Solder)
1 to 5°C per sec
Pre-heat 180 to 200°C
60sec Max Above 220°C
120sec Max
260°CMax 10sec Max
● Recommended Soldering Pad Pattern
R0.075
4.9 0.68
NICHIA STS-DA1-3118B
● Recommended Metal Solder Stencil Aperture
R0.075
4.54 1.04
2.3 1.94
( Unit: mm)
* This LED is designed to be reflow soldered on to a PCB. If dip soldered or hand soldered, Nichia cannot guarantee its reliability.
* Reflow soldering must not be performed more than twice. * The reflow profile should be determined based on the recommended soldering conditions for the solder paste that is used. * Avoid rapid cooling. Ramp down the temperature gradually from the peak temperature. * Nitrogen reflow soldering is recommended. Air flow soldering conditions can cause optical degradation,
caused by heat and/or atmosphere. * This product uses glass on the emitting surface; if excessive force is applied, it may cause the glass to be damaged,
chipped and/or deformed. If the glass is damaged, chipped and/or deformed, then the internal wires may be damaged and the reliability may decrease.
Using a nozzle designed for the LEDs is recommended. (See the nozzle drawing below) Nozzle contact area:
The center of the phosphor sheet. (See the second figure from the right)
2.6 1.6
R0.1
2.1 0.3
C0.1
( Unit: mm) If the nozzle is off-center and makes contact with the edges of the phosphor sheet, it may cause the glass to be chipped and/or damaged. One example of this is shown in the first figure from the right. Ensure that there are no issues with the mounting conditions (e.g. mounting pressure, vacuuming pressure, etc.) prior to use.
5
NICHIA STS-DA1-3118B * Repairing should not be done after the LEDs have been soldered. When repairing is unavoidable,
a hot plate should be used. It should be confirmed beforehand whether the characteristics of the LEDs will or will not be damaged by repairing. * W.