Product Data Sheet SMJE-XD08W4PX - Acrich3 8W Integrated AC LED Solution Acrich3 – 08W SMJE-XD08W4PX 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 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-2D08W4PD SMJE-3D08W4PD 120 220 8.5 Neutral 3700 – 4200 Warm 2600 – 3200 SMJE-2D08W4PE SMJE-3D08W4PE 120 220 8.5 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-2D08W4PD SMJE-3D08W4PD 120 220 8.5 80 SMJE-2D08W4PE SMJE-3D08W4PE 120 220 8.5 Rev1.0 90 1 Flux [lm] Remark Min. Typ. 670 750 08b 750 830 08c 580 670 08a www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W 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 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W Performance Characteristics Table 3. Electro Optical Characteristics, Ta = 25ºC Value Parameter Symbol Unit Min. Typ. Max. 670 790 - ФV [2] Luminous Flux Correlated Color Temperature [3] CCT CRI @CRI80 lm 580 670 - @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 7.6 8.5 2Θ1/2 Viewing Angle Tolerance of Surge Mark [5] Transient Protection [6] 3D 9.4 W 08W 50 / 60 Hz Over 0.95 - @120V 0ver 0.75 - @220V 120 deg. Vs 500 - - V Vs 2500 - - V Notes : (1) At 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 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W 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 9.7 Operating Temperature Ts ºC < 70℃ Storage Temperature Tstg ºC -40 ~ 100 ESD Sensitivity - - ±4,000V HBM 4 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W 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 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W 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 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W 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 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W 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 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W 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 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W Characteristic Graph Fig 8. Radiant Pattern, Ta =25℃ Rev1.0 10 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W 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 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W 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 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W 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 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W 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 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W 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 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W 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-XD08W4PX - Acrich3 8W Mechanical Dimensions SMJE-2D08W4PX (120V) Notes : (1) All dimensions are in millimeters. (Tolerance : ±0.2) (2) Scale : None Rev1.0 17 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W Mechanical Dimensions SMJE-3D08W4PX (220V) Notes : (1) All dimensions are in millimeters. (Tolerance : ±0.2) (2) Scale : None Rev1.0 18 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W Marking Information A A A : 150209 Da33B01 - Description 150209 ① D a33 B 0 1 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 99 580 11 33 b 670 55 c 77 750 SMT Date (YYMMDD, 6 Digits) CRI (1 Digits, CRI80=D, CRI90=E) Module Flux Bin (3 Digits) CCT (1 Digit) CCT Combination NO. (1 Digit) VF Combination NO. (1 Digit) ④, ⑤ Bin B Marking Bin A *0 *22 670 *1 *23 *2 *33 *3 *32 750 *4 *MC 830 *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 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W 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 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W Label Information Model No. SMJE-XD08W4PX (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, PE = SAW9C72A) (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 21 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W 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 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W 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 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W 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 24 www.seoulsemicon.com Product Data Sheet SMJE-XD08W4PX - Acrich3 8W 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 25 www.seoulsemicon.com