Color Bin Structure - Seoul Semiconductor

Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Integrated AC LED Solution
Acrich3 – 12W
SMJE-XD12W4PX
RoHS
Product Brief
Description
Features and Benefits
•
•
The Acrich3 series of products are not
need the standard converter essential
for conventional general lighting
products.
The converter or driver found in most
general lighting products can limit the
overall life of the product, but with the
Acrich3 series of products the life of the
product can more closely be estimated
from the LED itself. This will also allow
for a much smaller form factor from an
overall fixture design allowing for higher
creativity in the fixture.
The modules have a high power factor
which can contribute to a higher energy
savings in the end application.
•
•
•
•
•
•
•
•
•
•
Connects directly to AC line voltage
Through SPC3.0
High Power Efficiency & Factor
Low THD
Long Life Time
Simple BOM
Miniaturization
Lead Free Product
RoHS Compliant
TRIAC Dimming
Key Applications
•
Bulb Llight
Table 1. Product Selection (CCT)
Part No.
Vin [Vac]
P [W]
Color
CCT [K]
Cool
4700 – 6000
SMJE-2D12W4PD
SMJE-3D12W4PD
120
220
12.5
Neutral
3700 – 4200
Warm
2600 – 3200
SMJE-2D12W4PE
SMJE-3D12W4PE
120
220
12.5
Cool
4700 – 6000
Neutral
3700 – 4200
Warm
2600 – 3200
CRI
Min.
80
90
Table 2. Product Selection (Flux)
Part No.
Vin [Vac]
P [W]
CRI
SMJE-2D12W4PD
SMJE-3D12W4PD
120
220
12.5
80
SMJE-2D12W4PE
SMJE-3D12W4PE
120
220
12.5
Rev1.0
90
1
Flux [lm]
Remark
Min.
Typ.
910
1,020
12b
1,020
1,130
12c
750
910
12a
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Table of Contents
Index
•
Product Brief
1
•
Table of Contents
2
•
Performance Characteristics
3
•
Thermal Resistance
5
•
Characteristic Graph
6
•
Color Bin Structure
11
•
Mechanical Dimensions
17
•
Marking Information
19
•
Packing Information
20
•
Label Information
21
•
Handling of Silicone Resin for LEDs
22
•
Precaution for Use
23
•
Company Information
25
Rev1.0
2
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Performance Characteristics
Table 3. Electro Optical Characteristics, Ta = 25ºC
Value
Parameter
Symbol
Unit
Min.
Typ.
Max.
910
1,130
-
ФV [2]
Luminous Flux
Correlated Color
Temperature [3]
CCT
CRI
@CRI80
lm
750
910
-
@CRI90
5300
5600
6000
B
4700
5000
5300
C
3700
4000
4200
2900
3000
3200
G
2600
2700
2900
H
80
-
-
-
PD
90
-
-
-
PE
K
E
Ra
120
Input Voltage [4]
2D
Vin
Vac
220
Power Consumption
P
Operating Frequency
f
Power Factor
PF
11.2
12.5
2Θ1/2
Viewing Angle
Tolerance of Surge
Mark
[5]
Transient Protection [6]
3D
13.7
W
12W
50 / 60
Hz
Over 0.95
-
@120
Over 0.88
-
@220
120
deg.
Vs
500
-
-
V
Vs
2500
-
-
V
Notes :
(1) At 100Vac/120Vac/220Vac, Ta = 25ºC
(2) ФV is the total luminous flux output measured with an integrated sphere.
(Measure tolerance = ± 5%)
(3) Correlated Color Temperature is derived from the CIE 1931 Chromaticity diagram.
(4) Operating Voltage doesn't indicate the maximum voltage which customers use but means
tolerable voltage according to each country’s voltage variation rate. It is recommended that the
solder pad temperature should be below 70℃.
(5) Surge withstand in accordance with IEC61000-4-5
(6) At 120Vac, seven strikes, 100kHz 2.5kV in accordance with ANSI/IEEE C62.41.2-2002 Category
A operation
Rev1.0
3
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Performance Characteristics
Table 4. Absolute Maximum Ratings, Ta = 25ºC
Parameter
Symbol
Unit
Vin
Vac
Maximum Input Voltage @120Vac
144
Maximum Input Voltage @220Vac
Rev1.0
Value
264
Power Consumption
P
W
14.5
Operating Temperature
Ts
ºC
< 70℃
Storage Temperature
Tstg
ºC
-40 ~ 100
ESD Sensitivity
-
-
±4,000V HBM
4
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Thermal Resistance
Part
Package
Power Dissipation [W]
Maximum
Junction Temperature [℃]
Rθj-s [℃/W]
Acrich3 LED
SAW8C72A Max 1.5
125
9
Notes :
The Acrich3 LED has a thermal resistance of 9℃/W from junction of the LED to the
LED lead.
The maximum junction temperature of the Acrich3 LED package is 125℃, therefore the maximum
lead temperature Ts_max is
Ts_max = Tj_max - (Rθj-s * Pd)
= 125℃ - (9℃/W * 1.5W) = 111.5℃
Although this is the maximum lead temperature, it is recommended to keep the lead temperature
under 70℃.
Rev1.0
5
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Characteristic Graph
Fig 1. Relative Spectral Distribution vs. Wavelength Characteristic – G, H
Relative Spectral Power Distribution at Ta=25oC
1.2
Relative Spectral Power
Distribution
1
0.8
0.6
0.4
0.2
0
300
400
500
600
700
800
Wavelength[nm]
Fig 2. Relative Spectral Distribution vs. Wavelength Characteristic – E
Relative Spectral Power Distribution at Ta=25oC
1.2
Relative Spectral Power
Distribution
1
0.8
0.6
0.4
0.2
0
300
400
500
600
700
800
Wavelength[nm]
Rev1.0
6
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Characteristic Graph
Fig 3. Relative Spectral Distribution vs. Wavelength Characteristic – B, C
Relative Spectral Power Distribution at Ta=25oC
1.2
Relative Spectral Power
Distribution
1
0.8
0.6
0.4
0.2
0
300
400
500
600
700
800
Wavelength[nm]
Rev1.0
7
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Characteristic Graph
Fig 4. Relative Power Distribution vs. Voltage, Ta =25℃, 120V
Fig 5. Relative Power Distribution vs. Voltage, Ta =25℃, 220V
Rev1.0
8
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Characteristic Graph
Fig 6. Relative Luminous Flux vs. Voltage, Ta =25℃, 120V
Fig 7. Relative Luminous Flux vs. Voltage, Ta =25℃, 220V
Rev1.0
9
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Characteristic Graph
Fig 8. Radiant Pattern, Ta =25℃
Rev1.0
10
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Color Bin Structure
0.46
0.44
2900K
2600K
3200K
0.42
3700K
0.40
4200K
H
4700K
0.38
G
y
5300K
0.36
E
6000K
0.34
C
B
0.32
ANSI
MacAdam 3-Step
0.30
0.28
0.28
0.30
0.32
0.34
0.36
0.38
0.40
0.42
0.44
0.46
0.48
0.50
x
Bin
x
y
0.3266
0.3428
0.3268
0.3371
BM
x
y
0.3427
0.3568
0.3423
0.3504
CM
Bin
x
y
0.3806
0.3822
0.3786
0.3745
EM
0.3319
0.3416
0.3476
0.3547
0.3846
0.3782
0.3319
0.3476
0.3482
0.3613
0.3870
0.3861
0.4336
0.4067
0.4581
0.4143
0.4294
0.3977
0.4531
0.4051
GM
Rev1.0
Bin
HM
0.4354
0.3999
0.4589
0.4065
0.4398
0.4089
0.4641
0.4157
11
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Color Bin Structure
5300K
0.36
B41
5600K
B31
0.35
6000K
B42
B21
B32
B11
B43
y
B22
0.34
B33
B12
B44
B23
B34
B13
B24
0.33
B14
0.32
0.320
BM
0.325
0.330
0.335
0.340
x
Bin
x
y
0.3207
0.3462
0.3211
0.3407
B11
x
y
0.3250
0.3501
0.3252
0.3444
Bin
B21
x
y
0.3292
0.3539
0.3293
0.3481
B31
Bin
x
y
0.3334
0.3578
0.3333
0.3518
B41
0.3252
0.3444
0.3293
0.3481
0.3333
0.3518
0.3374
0.3554
0.3250
0.3501
0.3292
0.3539
0.3334
0.3578
0.3376
0.3616
0.3211
0.3407
0.3252
0.3444
0.3293
0.3481
0.3333
0.3518
0.3215
0.3353
0.3254
0.3388
0.3293
0.3423
0.3332
0.3458
B12
B22
B32
B42
0.3254
0.3388
0.3293
0.3423
0.3332
0.3458
0.3371
0.3493
0.3252
0.3444
0.3293
0.3481
0.3333
0.3518
0.3374
0.3554
0.3215
0.3353
0.3254
0.3388
0.3293
0.3423
0.3332
0.3458
0.3218
0.3298
0.3256
0.3331
0.3294
0.3364
0.3331
0.3398
B13
B23
B33
B43
0.3256
0.3331
0.3294
0.3364
0.3331
0.3398
0.3369
0.3431
0.3254
0.3388
0.3293
0.3423
0.3332
0.3458
0.3371
0.3493
0.3218
0.3298
0.3256
0.3331
0.3294
0.3364
0.3331
0.3398
0.3222
0.3243
0.3258
0.3275
0.3294
0.3306
0.3330
0.3338
B14
Rev1.0
Bin
B24
B34
B44
0.3258
0.3275
0.3294
0.3306
0.3330
0.3338
0.3366
0.3369
0.3256
0.3331
0.3294
0.3364
0.3331
0.3398
0.3369
0.3431
12
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Color Bin Structure
0.38
4700K
5000K
0.37
C41
C31
5300K
C42
C21
C32
C11
0.36
C43
C22
C33
y
C12
C23
0.35
C44
C13
C34
C24
C14
0.34
CM
0.33
0.335
0.340
0.345
0.350
0.355
x
Bin
x
y
0.3376
0.3616
0.3374
0.3554
C11
x
y
0.3420
0.3652
0.3415
0.3588
Bin
C21
x
y
0.3463
0.3687
0.3457
0.3622
C31
Bin
x
y
0.3507
0.3724
0.3500
0.3657
C41
0.3415
0.3588
0.3457
0.3622
0.3500
0.3657
0.3542
0.3692
0.3420
0.3652
0.3463
0.3687
0.3507
0.3724
0.3551
0.3760
0.3374
0.3554
0.3415
0.3588
0.3457
0.3622
0.3500
0.3657
0.3371
0.3493
0.3411
0.3525
0.3452
0.3558
0.3492
0.3591
C12
C22
C32
C42
0.3411
0.3525
0.3452
0.3558
0.3492
0.3591
0.3533
0.3624
0.3415
0.3588
0.3457
0.3622
0.3500
0.3657
0.3542
0.3692
0.3371
0.3493
0.3411
0.3525
0.3452
0.3558
0.3492
0.3591
0.3369
0.3431
0.3407
0.3462
0.3446
0.3493
0.3485
0.3524
C13
C23
C33
C43
0.3407
0.3462
0.3446
0.3493
0.3485
0.3524
0.3523
0.3555
0.3411
0.3525
0.3452
0.3558
0.3492
0.3591
0.3533
0.3624
0.3369
0.3431
0.3407
0.3462
0.3446
0.3493
0.3485
0.3524
0.3366
0.3369
0.3403
0.3399
0.3440
0.3428
0.3477
0.3458
C14
Rev1.0
Bin
C24
C34
C44
0.3403
0.3399
0.3440
0.3428
0.3477
0.3458
0.3514
0.3487
0.3407
0.3462
0.3446
0.3493
0.3485
0.3524
0.3523
0.3555
13
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Color Bin Structure
0.41
3700K
0.40
4000K
E41
E31
4200K
0.39
E42
E21
E32
E11
E22
0.38
E43
y
E12
E33
E23
E13
0.37
E44
E34
E24
E14
EM
0.36
0.35
0.36
0.37
0.38
0.39
0.40
x
Bin
x
y
0.3736
0.3874
0.3720
0.3800
E11
x
y
0.3804
0.3917
0.3784
0.3841
Bin
E21
x
y
0.3871
0.3959
0.3849
0.3881
E31
Bin
x
y
0.3939
0.4002
0.3914
0.3922
E41
0.3784
0.3841
0.3849
0.3881
0.3914
0.3922
0.3979
0.3962
0.3804
0.3917
0.3871
0.3959
0.3939
0.4002
0.4006
0.4044
0.3720
0.3800
0.3784
0.3841
0.3849
0.3881
0.3914
0.3922
0.3703
0.3726
0.3765
0.3765
0.3828
0.3803
0.3890
0.3842
E12
E22
E32
E42
0.3765
0.3765
0.3828
0.3803
0.3890
0.3842
0.3952
0.3880
0.3784
0.3841
0.3849
0.3881
0.3914
0.3922
0.3979
0.3962
0.3703
0.3726
0.3765
0.3765
0.3828
0.3803
0.3890
0.3842
0.3687
0.3652
0.3746
0.3689
0.3806
0.3725
0.3865
0.3762
E13
E23
E33
E43
0.3746
0.3689
0.3806
0.3725
0.3865
0.3762
0.3925
0.3798
0.3765
0.3765
0.3828
0.3803
0.3890
0.3842
0.3952
0.3880
0.3687
0.3652
0.3746
0.3689
0.3806
0.3725
0.3865
0.3762
0.3670
0.3578
0.3727
0.3613
0.3784
0.3647
0.3841
0.3682
E14
Rev1.0
Bin
E24
E34
E44
0.3727
0.3613
0.3784
0.3647
0.3841
0.3682
0.3898
0.3716
0.3746
0.3689
0.3806
0.3725
0.3865
0.3762
0.3925
0.3798
14
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Color Bin Structure
0.43
2900K
3000K
0.42
3200K
G21
G11
G42
0.41
y
0.40
G13
0.39
G14
G24
G32
G22
G12
G23
G41
G31
G33
G43
G44
G34
GM
0.38
0.41
0.42
0.43
0.44
0.45
0.46
x
Bin
x
y
0.4299
0.4165
0.4261
0.4077
G11
x
y
0.4364
0.4188
0.4324
0.4099
Bin
G21
x
y
0.4430
0.4212
0.4387
0.4122
G31
Bin
x
y
0.4496
0.4236
0.4451
0.4145
G41
0.4324
0.4100
0.4387
0.4122
0.4451
0.4145
0.4514
0.4168
0.4365
0.4189
0.4430
0.4212
0.4496
0.4236
0.4562
0.4260
0.4261
0.4077
0.4324
0.4100
0.4387
0.4122
0.4451
0.4145
0.4223
0.3990
0.4284
0.4011
0.4345
0.4033
0.4406
0.4055
G12
G22
G32
G42
0.4284
0.4011
0.4345
0.4033
0.4406
0.4055
0.4468
0.4077
0.4324
0.4100
0.4387
0.4122
0.4451
0.4145
0.4515
0.4168
0.4223
0.3990
0.4284
0.4011
0.4345
0.4033
0.4406
0.4055
0.4185
0.3902
0.4243
0.3922
0.4302
0.3943
0.4361
0.3964
G13
G23
G33
G43
0.4243
0.3922
0.4302
0.3943
0.4361
0.3964
0.4420
0.3985
0.4284
0.4011
0.4345
0.4033
0.4406
0.4055
0.4468
0.4077
0.4243
0.3922
0.4302
0.3943
0.4302
0.3943
0.4361
0.3964
0.4203
0.3834
0.4259
0.3853
0.4259
0.3853
0.4316
0.3873
G14
Rev1.0
Bin
G24
G34
G44
0.4147
0.3814
0.4203
0.3834
0.4316
0.3873
0.4373
0.3893
0.4185
0.3902
0.4243
0.3922
0.4361
0.3964
0.4420
0.3985
15
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Color Bin Structure
0.44
2600K
2700K
0.43
2900K
H11
0.42
H22
H12
y
0.41
H13
H33
H23
0.40
H34
H24
H14
H41
H31
H21
H42
H32
H43
H44
HM
0.39
0.38
0.43
0.44
0.45
0.46
0.47
0.48
x
Bin
x
y
0.4562
0.4260
0.4515
0.4168
H11
x
y
0.4625
0.4275
0.4575
0.4182
Bin
H21
x
y
0.4687
0.4289
0.4636
0.4197
H31
Bin
x
y
0.4750
0.4304
0.4697
0.4211
H41
0.4575
0.4182
0.4636
0.4197
0.4697
0.4211
0.4758
0.4225
0.4625
0.4275
0.4687
0.4289
0.4750
0.4304
0.4810
0.4319
0.4515
0.4168
0.4575
0.4182
0.4636
0.4197
0.4697
0.4211
0.4468
0.4077
0.4526
0.4090
0.4585
0.4104
0.4644
0.4118
H12
H22
H32
H42
0.4526
0.4090
0.4585
0.4104
0.4644
0.4118
0.4703
0.4132
0.4575
0.4182
0.4636
0.4197
0.4697
0.4211
0.4758
0.4225
0.4468
0.4077
0.4526
0.4090
0.4585
0.4104
0.4644
0.4118
0.4420
0.3985
0.4477
0.3998
0.4534
0.4012
0.4591
0.4025
H13
H23
H33
H43
0.4477
0.3998
0.4534
0.4012
0.4591
0.4025
0.4648
0.4038
0.4526
0.4090
0.4585
0.4104
0.4644
0.4118
0.4703
0.4132
0.4420
0.3985
0.4477
0.3998
0.4534
0.4012
0.4591
0.4025
0.4373
0.3893
0.4428
0.3906
0.4483
0.3919
0.4538
0.3932
H14
Rev1.0
Bin
H24
H34
H44
0.4428
0.3906
0.4483
0.3919
0.4538
0.3932
0.4593
0.3944
0.4477
0.3998
0.4534
0.4012
0.4591
0.4025
0.4648
0.4038
16
www.seoulsemicon.com
Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Mechanical Dimensions
SMJE-2D12W4PX (120V)
Notes :
(1) All dimensions are in millimeters. (Tolerance : ±0.2)
(2) Scale : None
Rev1.0
17
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Mechanical Dimensions
SMJE-3D12W4PX (220V)
Notes :
(1) All dimensions are in millimeters. (Tolerance : ±0.2)
(2) Scale : None
Rev1.0
18
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Marking Information
A
A
A : 150209 D33B01
- Description
150209
①
D33B01
⑥
⑤
④
①
②
③
④
⑤
⑥
③
②
②
Marking CRI
D
80
E
90
Rev1.0
③
Type Marking Bin A
88
a
99
750
11
33
b
910
55
c
77
1020
SMT Date (YYMMDD, 6 Digits)
CRI (1 Digits, CRI80=D, CRI90=E)
Module Flux Bin (2 Digits)
CCT (1 Digit)
CCT Combination NO. (1 Digit)
VF Combination NO. (1 Digit)
④, ⑤
Bin B Marking Bin A
*0
*22
910
*1
*23
*2
*33
*3
*32
1020
*4
*MC
1130
*5
*22
*6
*23
*7
*32
*8
*33
*9
*22
*A
*22
*B
*22
*C
*23
*D
*23
*E
*23
*F
*32
*G
*32
*H
*32
*I
*33
*J
*33
*H
*33
19
⑥
Bin B Marking Bin A
*33
1
D1
*32
2
D1
*22
3
D2
*23
4
D1
*MC
5
D3
*22
6
D2
*23
7
D2
*32
8
D3
*33
9
D3
*34
*43
*44
*31
*41
*42
*13
*14
*24
*11
*12
*21
Bin B
D1
D2
D1
D3
D1
D2
D3
D2
D3
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Packing
1. Tray information
4. Box information & packing
• 72 PCS LED modules packed per tray
2. Tray stack and taping
11EA trays
with LED modules
• 11 LED module trays and additional 1 dummy
trays each up of box
• Add silica gel (1EA) on top of the tray
3. Sealing packing
• 720 PCS modules per BOX 1EA
Dielectric sealing pack
(700x700)
Rev1.0
20
** 1 Box : 720 PCS per tray x 20 trays = 720 PCS
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Label Information
Model No.
SMJE-XD12W4PX (1)
Rank
XXXXXXX (2)
Type
STD / 3-step(3)
IIIII II IIIII III
IIIII II IIIII III
XX
Quantity
Date
IIIII II IIIII III
YYMDDXXXXX-XXXXXXX
IIIII II IIIII III
SEOUL SEMICONDUCTOR CO.,LTD.
Notes
(1) The model number designation is explained as follow
SMJE : Seoul Semiconductor internal code
XD : Input Voltage (2D = 120V, 3D = 220V)
08W : About Power Consumption
4 : Acrich IC Version
PX : MJT PKG (PD = SAW8C72A&SAW8CF2A
PE = SAW9C72A&SAW9CF2A)
(2) It represents the LED module rank.
XXX : ALL or Intensity Bin
X16 : CCT bin. (X = CCT)
X : A(Single bin) or M(Combination bin)
(3) It represents all bin (STD) or McAdam 3-Step(3-Step).
(4) It is attached to the top left corner of the box.
TOTAL Quantity
XX
SEOUL SEMICONDUCTOR CO.,LTD.
Notes
(1) It is attached to the bottom right corner of the box.
Rev1.0
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Handling of Silicone Resin for LEDs
(1) Acrich3 series is encapsulated with silicone resin for high optical efficiency.
(2) Please do not touch the silicone resin area with sharp objects such as pincette(tweezers).
(3) Finger prints on silicone resin area may affect the performance.
(4) Please store LEDs in covered containers to prevent dust accumulation as this may affect
performance.
(5) Excessive force more than 3000gf to the silicone lens can result in fatal or permanent damage
with LEDs.
(6) Please do not cover the silicone resin area with any other resins such as epoxy, urethane, etc.
Rev1.0
22
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Precaution for Use
(1) Please review the Acrich3 Application Note for proper protective circuitry usage.
(2) Please note, Acrich3 products run off of high voltage, therefore caution should be taken when
working near Acrich3 products.
(3) Make sure proper discharge prior to starting work.
(4) DO NOT touch any of the circuit board, components or terminals with body or metal while circuit
is active.
(5) Please do not add or change wires while Acrich3 circuit is active.
(6) Long time exposure to sunlight or UV can cause the lens to discolor.
(7) Please do not use adhesives to attach the LED that outgas organic vapor.
(8) Please do not use together with the materials containing Sulfur.
(9) Please do not assemble in conditions of high moisture and/or oxidizing gas such as Cl, H 2S, NH3,
SO2, NOx, etc.
(10) Please do not make any modification on module.
(11) Please be cautious when soldering to board so as not to create a short between different trace
patterns.
(12) Do not impact or place pressure on this product because even a small amount of pressure can
damage the product. The product should also not be placed in high temperatures, high humidity
or direct sunlight since the device is sensitive to these conditions.
(13) When storing devices for a long period of time before usage, please following these guidelines:
* The devices should be stored in the anti-static bag that it was shipped in from
Seoul-Semiconductor with opening.
* If the anti-static bag has been opened, re-seal preventing air and moisture from being present
in the bag.
(14) LEDs and IC are sensitive to Electro-Static Discharge (ESD) and Electrical Over Stress (EOS).
The acrich3 product should also not be installed in end equipment without ESD protection.
Below is a list of suggestions that Seoul Semiconductor purposes to minimize these effects.
a. ESD (Electro Static Discharge)
Electrostatic discharge (ESD) is the defined as the release of static electricity when two objects come
into contact. While most ESD events are considered harmless, it can be an expensive problem in
many industrial environments during production and storage. The damage from ESD to an LEDs may
cause the product to demonstrate unusual characteristics such as:
Rev1.0
23
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Precaution for Use
- Increase in reverse leakage current lowered turn-on voltage
- Abnormal emissions from the LED at low current
The following recommendations are suggested to help minimize the potential for an ESD event.
One or more recommended work area suggestions:
- Ionizing fan setup
- ESD table/shelf mat made of conductive materials
- ESD safe storage containers
One or more personnel suggestion options:
- Antistatic wrist-strap
- Antistatic material shoes
- Antistatic clothes
Environmental controls:
- Humidity control (ESD gets worse in a dry environment)
b. EOS (Electrical Over Stress)
Electrical Over-Stress (EOS) is defined as damage that may occur when an electronic device is
subjected to a current or voltage that is beyond the maximum specification limits of the device.
The effects from an EOS event can be noticed through product performance like:
- Changes to the performance of the LED package
(If the damage is around the bond pad area and since the package is completely encapsulated
the package may turn on but flicker show severe performance degradation.)
- Changes to the light output of the luminaire from component failure
- Components on the board not operating at determined drive power
Failure of performance from entire fixture due to changes in circuit voltage and current across total
circuit causing trickle down failures. It is impossible to predict the failure mode of every LED exposed
to electrical overstress as the failure modes have been investigated to vary, but there are some
common signs that will indicate an EOS event has occurred:
- Damaged may be noticed to the bond wires (appearing similar to a blown fuse)
- Damage to the bond pads located on the emission surface of the LED package
(shadowing can be noticed around the bond pads while viewing through a microscope)
- Anomalies noticed in the encapsulation and phosphor around the bond wires
- This damage usually appears due to the thermal stress produced during the EOS event
c. To help minimize the damage from an EOS event Seoul Semiconductor recommends utilizing:
- A surge protection circuit
- An appropriately rated over voltage protection device
- A current limiting device
Rev1.0
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Product Data Sheet
SMJE-XD12W4PX - Acrich3 12W
Company Information
Published by
Seoul Semiconductor © 2013 All Rights Reserved.
Company Information
Seoul Semiconductor (www.SeoulSemicon.com) manufacturers and packages a wide selection of
light emitting diodes (LEDs) for the automotive, general illumination/lighting, Home appliance, signage
and back lighting markets. The company is the world’s fifth largest LED supplier, holding more than
10,000 patents globally, while offering a wide range of LED technology and production capacity in
areas such as “nPola”, "Acrich", the world’s first commercially produced AC LED, and "Acrich MJT Multi-Junction Technology" a proprietary family of high-voltage LEDs.
The company’s broad product portfolio includes a wide array of package and device choices such as
Acrich and Acirch2, high-brightness LEDs, mid-power LEDs, side-view LEDs, and through-hole type
LEDs as well as custom modules, displays, and sensors.
Legal Disclaimer
Information in this document is provided in connection with Seoul Semiconductor products. With
respect to any examples or hints given herein, any typical values stated herein and/or any information
regarding the application of the device, Seoul Semiconductor hereby disclaims any and all warranties
and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual
property rights of any third party. The appearance and specifications of the product can be changed
to improve the quality and/or performance without notice.
Rev1.0
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