No. STSE-CW2157B
<Cat.No.031110>
SPECIFICATIONS FOR NICHIA
WHITE
LED
MODEL :
NSPW300BS
NICHIA CORPORATION
-0-
Nichia STSE-CW2157B
<Cat.No.031110>
1.SPECIFICATIONS
(1) Absolute Maximum Ratings
Item
Forward Current
Pulse Forward Current
Reverse Voltage
Power Dissipation
Operating Temperature
Storage Temperature
Soldering Temperature
Symbol
I
F
I
FP
V
R
P
D
T
opr
T
stg
T
sld
Absolute Maximum Rating
30
100
5
120
-30 ~ + 85
-40 ~ +100
265°C for 10sec.
(Ta=25°C)
Unit
mA
mA
V
mW
°C
°C
I
FP
Conditions : Pulse Width
<
10msec. and Duty
<
1/10
=
=
(2) Initial Electrical/Optical Characteristics
Item
Symbol
Forward Voltage
V
F
Reverse Current
I
R
Rank S
Iv
Luminous Intensity Rank R
Iv
Rank Q
Iv
Condition
I
F
=20[mA]
V
R
= 5[V]
I
F
=20[mA]
I
F
=20[mA]
I
F
=20[mA]
Min.
-
-
3900
2760
1950
Typ.
3.6
-
4600
3200
2300
(Ta=25°C)
Max.
Unit
4.0
V
50
µA
5520
mcd
3900
mcd
2760
mcd
!
Luminous Intensity Measurement allowance is ± 10%.
Color Ranks
x
y
x
y
0.280
0.248
0.296
0.276
Rank a0
0.264
0.283
0.267
0.305
Rank b2
0.287
0.330
0.295
0.339
0.296
0.276
0.330
0.318
x
y
x
y
0.287
0.295
0.330
0.318
(I
F
=20mA,Ta=25°C)
Rank b1
0.283
0.330
0.330
0.305
0.360
0.339
Rank c0
0.330
0.361
0.360
0.385
0.356
0.351
!
Color Coordinates Measurement allowance is ± 0.01.
!
One delivery will include up to two consecutive color ranks and three luminous intensity ranks of the products.
The quantity-ratio of the ranks is decided by Nichia.
2.TYPICAL INITIAL OPTICAL/ELECTRICAL CHARACTERISTICS
Please refer to figure’s page.
3.OUTLINE DIMENSIONS AND MATERIALS
Please refer to figure’s page.
Material as follows ;
Resin(Mold) :
Leadframe :
Epoxy Resin (over YAG Phosphor)
Ag plating Copper Alloy
-1-
Nichia STSE-CW2157B
<Cat.No.031110>
4.PACKAGING
· The LEDs are packed in cardboard boxes after packaging in anti-electrostatic bags.
Please refer to figure’s page.
The label on the minimum packing unit shows ; Part Number, Lot Number, Ranking, Quantity
· In order to protect the LEDs from mechanical shock, we pack them in cardboard boxes for transportation.
· The LEDs may be damaged if the boxes are dropped or receive a strong impact against them,
so precautions must be taken to prevent any damage.
· The boxes are not water resistant and therefore must be kept away from water and moisture.
· When the LEDs are transported, we recommend that you use the same packing method as Nichia.
5.LOT NUMBER
The first six digits number shows
lot number.
The lot number is composed of the following characters;
"#$$$$
-
!%
"
- Year
( 2 for 2002, 3 for 2003 )
#
- Month ( 1 for Jan., 9 for Sep., A for Oct.,
$$$$
- Nichia's Product Number
!
- Ranking by Color Coordinates
%
- Ranking by Luminous Intensity
B for Nov. )
-2-
Nichia STSE-CW2157B
<Cat.No.031110>
6.RELIABILITY
(1) TEST ITEMS AND RESULTS
Test Item
Resistance to
Soldering Heat
Solderability
Thermal Shock
Temperature Cycle
Moisture Resistance Cyclic
Terminal Strength
(bending test)
Terminal Strength
(pull test)
High Temperature Storage
Temperature Humidity
Storage
Low Temperature Storage
Steady State Operating Life
Steady State Operating Life
of High Humidity Heat
Steady State Operating Life
of Low Temperature
Standard
Test Method
JEITA ED-4701
300 302
JEITA ED-4701
300 303
JEITA ED-4701
300 307
JEITA ED-4701
100 105
JEITA ED-4701
200 203
JEITA ED-4701
400 401
JEITA ED-4701
400 401
JEITA ED-4701
200 201
JEITA ED-4701
100 103
JEITA ED-4701
200 202
Test Conditions
Tsld=260 ± 5°C, 10sec.
3mm from the base of the epoxy bulb
Tsld=235 ± 5°C,
(using flux)
0°C ~ 100°C
15sec. 15sec.
-40°C ~ 25°C ~ 100°C ~ 25°C
30min. 5min. 30min. 5min.
25°C ~ 65°C ~ -10°C
90%RH 24hrs./1cycle
Load 5N (0.5kgf)
0° ~ 90° ~ 0° bend 2 times
Load 10N (1kgf)
10 ± 1 sec.
Ta=100°C
Ta=60°C, RH=90%
Ta=-40°C
Ta=25°C, I
F
=30mA
60°C, RH=90%, I
F
=20mA
Ta=-30°C, I
F
=20mA
5sec.
Note
1 time
1 time
over 95%
100 cycles
100 cycles
10 cycles
No noticeable
damage
No noticeable
damage
1000hrs.
1000hrs.
1000hrs.
1000hrs.
500hrs.
1000hrs.
Number of
Damaged
0/100
0/100
0/100
0/100
0/100
0/100
0/100
0/100
0/100
0/100
0/100
0/100
0/100
(2) CRITERIA FOR JUDGING THE DAMAGE
Item
Symbol Test Conditions
Forward Voltage
V
F
I
F
=20mA
-
U.S.L.*)$ 1.1
Reverse Current
I
R
V
R
=5V
-
U.S.L.*)$ 2.0
Luminous Intensity
I
V
I
F
=20mA
L.S.L.**)$ 0.7
-
*) U.S.L. : Upper Standard Level
**) L.S.L. : Lower Standard Level
Criteria for Judgement
Min.
Max.
-3-
Nichia STSE-CW2157B
<Cat.No.031110>
7.CAUTIONS
The
LEDs are devices which are materialized by combining Blue LEDs and special phosphors.
Consequently, the color of the LEDs is changed a little by an operating current.
Care should be taken after due consideration when using LEDs.
(1) Lead Forming
· When forming leads, the leads should be bent at a point at least 3mm from the base of the epoxy bulb.
Do not use the base of the leadframe as a fulcrum during lead forming.
· Lead forming should be done before soldering.
· Do not apply any bending stress to the base of the lead. The stress to the base may damage the LED’s
characteristics or it may break the LEDs.
· When mounting the LEDs onto a printed circuit board, the holes on the circuit board should be exactly
aligned with the leads of the LEDs. If the LEDs are mounted with stress at the leads, it causes
deterioration of the epoxy resin and this will degrade the LEDs.
(2) Storage
· The LEDs should be stored at 30°C or less and 70%RH or less after being shipped from Nichia and
the storage life limits are 3 months.
If the LEDs are stored for 3 months or more, they can be stored
for a year in a sealed container with a nitrogen atmosphere and moisture absorbent material.
· Nichia LED leadframes are comprised of a silver plated copper alloy. The silver surface may be
affected by environments which contain corrosive gases and so on. Please avoid conditions which
may cause the LED to corrode, tarnish or discolor. This corrosion or discoloration may cause difficulty
during soldering operations. It is recommended that the LEDs be used as soon as possible.
· Please avoid rapid transitions in ambient temperature, especially, in high humidity environments where
condensation can occur.
(3) Static Electricity
· Static electricity or surge voltage damages the LEDs.
It is recommended that a wrist band or an anti-electrostatic glove be used when handling the LEDs.
· All devices, equipment and machinery must be properly grounded. It is recommended that measures
be taken against surge voltage to the equipment that mounts the LEDs.
· When inspecting the final products in which LEDs were assembled, it is recommended to check
whether the assembled LEDs are damaged by static electricity or not.
It is easy to find
static-damaged LEDs by a light-on test or a VF test at a lower current (below 1mA is recommended).
· Damaged LEDs will show some unusual characteristics such as the leak current remarkably
increases, the forward voltage becomes lower, or the LEDs do not light at the low current.
Criteria : (V
F
> 2.0V at I
F
=0.5mA)
-4-
模拟电子
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
