Product Data Sheet STW7C2SA – Mid-Power LED Achieving the best system cost in Mid/High Power Mid-Power LED – 3030 Series STW7C2SA (Cool, Neutral) MacAdam 3-Step RoHS Product Brief Description Features and Benefits • This White Colored surface-mount LED comes in standard package dimension. Package Size : 3.0x3.0x0.65mm • It has a substrate made up of a molded plastic reflector sitting on top of a lead frame. • • • • • • • The die is attached within the reflector cavity and the cavity is encapsulated by silicone. • Thermally Enhanced Package Design Mid Power to High Power up to 1.4W Max. Driving Current 200mA Compact Package Size High Color Quality with CRI Min. 70 RoHS compliant Key Applications • • • • The package design coupled with careful selection of component materials allow these products to perform with high reliability. Replacement lamps Residential Entertainment Retail Display Table 1. Product Selection Table CCT Part Number Color Min. Typ. Max. Cool White 4700K 5600K 7000K Neutral White 3700K 4500K 4700K STW7C2SA Rev4.5, Dec 1, 2015 1 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Table of Contents Index • Product Brief 1 • Table of Contents 2 • Performance Characteristics 3 • Characteristics Graph 5 • Color Bin Structure 11 • Mechanical Dimensions 18 • Recommended Solder Pad 19 • Reflow Soldering Characteristics 20 • Emitter Tape & Reel Packaging 21 • Product Nomenclature 23 • Handling of Silicone Resin for LEDs 24 • Precaution For Use 25 • Company Information 28 Rev4.5, Dec 1, 2015 2 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Performance Characteristics Table 2. Product Selection Guide, IF = 100mA, Tj = 25ºC, RH30% CCT (K) [1] Part Number RANK Typ. Luminous Intensity [2] IV (cd) Luminous Flux [3] ФV (lm) CRI Ra Min Max Min Max Min. K25 25 27 78.7 85 70 K27 27 30 85 94.5 70 K25 25 27 78.7 85 70 K27 27 30 85 94.5 70 K26 26 28 81.9 88.2 70 K28 28 31.2 88.2 98.28 70 L31 31.2 34 98.28 107.1 70 K26 26 28 81.9 88.2 70 K28 28 31.2 88.2 98.28 70 L31 31.2 34 98.28 107.1 70 K26 26 28 81.9 88.2 70 K28 28 31.2 88.2 98.28 70 L31 31.2 34 98.28 107.1 70 6500 5600 5000 STW7C2SA 4500 4000 Notes : (1) Correlated Color Temperature is derived from the CIE 1931 Chromaticity diagram. (2) Seoul Semiconductor maintains a tolerance of 7% on Intensity and power measurements. The luminous intensity IV was measured at the peak of the spatial pattern which may not be aligned with the mechanical axis of the LED package. (3) The lumen table is only for reference. Rev4.5, Dec 1, 2015 3 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Performance Characteristics Table 3. Characteristics, IF = 100mA, Tj = 25ºC, RH30% Value Parameter Symbol Unit Min. Typ. Max. Forward Current IF - 100 - mA Forward Voltage[1] VF 5.6 - 6.4 V 100mA - 29.0 - cd 150mA - 40.5 - cd Ra 70 - - 2Θ1/2 - 120 - Deg. Thermal resistance (J to S) [3] RθJ-S - 10 - ℃/W ESD Sensitivity(HBM) - Luminous Intensity (5000K)[1] Iv CRI[1] Viewing Angle [2] Class 3A JESD22-A114-E Table 4. Absolute Maximum Ratings Parameter Symbol Value Unit Forward Current IF 200 mA Power Dissipation PD 1.44 W Junction Temperature Tj 125 ºC Operating Temperature Topr -40~ + 85 ºC Storage Temperature Tstg -40 ~ + 100 ºC Notes : (1) Tolerance : VF :±0.2V, IV :±7%, Ra :±2, x,y :±0.005 (2) 2Θ1/2 is the off-axis where the luminous intensity is 1/2 of the peak intensity (3) Thermal resistance: RthJS (Junction to Solder) (4) A zener diode is included to protect the product from ESD. • • • LED’s properties might be different from suggested values like above and below tables if operation condition will be exceeded our parameter range. Care is to be taken that power dissipation does not exceed the absolute maximum rating of the product. All measurements were made under the standardized environment of Seoul Semiconductor. Thermal resistance can be increased substantially depending on the heat sink design/operating condition, and the maximum possible driving current will decrease accordingly. Rev4.5, Dec 1, 2015 4 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Characteristics Graph Fig 1. Color Spectrum, Tj = 25ºC, RH30%, IF=100mA Relative Emission Intensity 1.0 0.5 0.0 300 400 500 600 700 800 Wavelength [nm] Fig 2. Viewing Angle Distribution, IF=100mA Relative Intensity (%) 100 80 60 40 20 0 -100 -75 -50 -25 0 25 50 75 100 Angle [Degree] Rev4.5, Dec 1, 2015 5 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Characteristics Graph Fig 3. Forward Voltage vs. Forward Current, Tj = 25ºC 0.20 IF[A] 0.15 0.10 0.05 0.00 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 VF[V] Fig 4. Forward Current vs. Relative Luminous Flux, Tj = 25ºC 2.0 1.8 Relative Luminous Intensity 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 20 40 60 80 100 120 140 160 180 200 Forward Current IF [mA] Rev4.5, Dec 1, 2015 6 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Characteristics Graph Fig 5. Forward Current vs. CIE X, Y Shift, Tj = 25ºC (4,700K~7,000K) 0.358 0.356 0.354 20mA 0.352 y 50mA 75mA 0.350 100mA 150mA 0.348 200mA 0.346 0.344 0.342 0.338 0.339 0.340 0.341 0.342 0.343 x (3,700K~4,700K) 0.3920 0.3915 20mA 0.3910 50mA y 0.3905 75mA 100mA 0.3900 150mA 0.3895 200mA 0.3890 0.3885 0.3880 0.4228 0.4230 0.4232 0.4234 0.4236 0.4238 0.4240 x Rev4.5, Dec 1, 2015 7 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Characteristics Graph Fig 6. Relative Light Output vs. Junction Temperature, IF=100mA Relative Luminous Intensity 1.0 0.8 0.6 0.4 0.2 0.0 30 45 60 75 90 105 120 O Junction temperature Tj( C) Fig 7. Junction Temperature vs. Relative Forward Voltage, IF=100mA Relative Forward Voltage 1.0 0.8 0.6 0.4 0.2 0.0 30 45 60 75 90 105 120 O Junction temperature Tj( C) Rev4.5, Dec 1, 2015 8 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Characteristics Graph Fig 8. Chromaticity Coordinate vs. Junction Temperature, IF=100mA (4,700K~7,000K) 0.355 0.350 25 ℃ y 0.345 70 ℃ 0.340 100℃ 125 ℃ 0.335 0.330 0.325 0.320 0.325 0.330 0.335 0.340 0.345 x (3,700K~4,700K) 0.390 25 ℃ 0.388 55 ℃ 0.386 85 ℃ y 0.384 100 ℃ 0.382 125 ℃ 0.380 0.378 0.376 0.410 0.412 0.414 0.416 0.418 0.420 0.422 0.424 x Rev4.5, Dec 1, 2015 9 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Characteristics Graph Fig 9. Maximum Forward Current vs. Ambient Temperature 250 Forward Current [mA] 200 150 100 50 0 0 20 40 60 80 100 O Ambient Temperature Ta [ C] Rev4.5, Dec 1, 2015 10 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Color Bin Structure Table 5. Bin Code description, IF = 100mA Color Chromaticity Coordinate Luminous Intensity (cd) Part Number STW7C2SA Bin Code Min. Max. K25 25 K27 L30 Typical Forward Voltage (VF) Bin Code Min. Max. 27 Z56 5.6 5.8 27 30 Z58 5.8 6.0 30 33 Z60 6.0 6.2 Z62 6.2 6.4 K26 26 28 K28 28 31.2 L31 31.2 34 Refer to page.12 Table 6 . Intensity rank distribution CCT 4,700K~7,000K 3,700K~4,700K Available ranks CIE Refer to page.12 IV Rank K25 K27 L30 K26 K28 L31 *Notes : All measurements were made under the standardized environment of SSC. In order to ensure availability, single color rank will not be orderable. Rev4.5, Dec 1, 2015 11 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Color Bin Structure CIE Chromaticity Diagram, Tj = 25℃, IF = 100mA 0.42 0.40 E CIE coord.(Y) 0.38 D 0.36 C B 0.34 A 0.32 0.30 MACADAM 3STEP Rank 0.28 0.30 0.32 0.34 0.36 0.38 0.40 0.42 CIE coord.(X) • Energy Star binning applied to all 2600~7000K. • Measurement Uncertainty of the Color Coordinates : ± 0.005 Rev4.5, Dec 1, 2015 12 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Color Bin Structure <IF = 100mA, Tj = 25℃> 6000K 0.35 A41 6500K 0.34 A31 CIE Y 7000K 0.33 A21 A11 A32 A22 A12 A43 A33 A23 A13 0.32 A42 A44 A34 A24 A14 0.31 0.300 0.305 0.310 0.315 0.320 0.325 CIE X A11 A21 A31 A41 CIE X CIE Y CIE X CIE Y CIE X CIE Y CIE X CIE Y 0.3028 0.3304 0.3072 0.3349 0.3115 0.3393 0.3160 0.3437 0.3038 0.3256 0.3080 0.3299 0.3123 0.3342 0.3166 0.3384 0.3080 0.3299 0.3123 0.3342 0.3166 0.3384 0.3209 0.3426 0.3349 0.3115 0.3393 0.3160 0.3437 0.3205 0.3072 A12 A22 A32 0.3481 A42 CIE X CIE Y CIE X CIE Y CIE X CIE Y CIE X CIE Y 0.3038 0.3256 0.3080 0.3299 0.3123 0.3342 0.3166 0.3384 0.3048 0.3209 0.3089 0.3249 0.3131 0.3290 0.3172 0.3331 0.3089 0.3249 0.3131 0.3290 0.3172 0.3331 0.3213 0.3371 0.3080 0.3299 0.3123 0.3342 0.3166 0.3384 0.3209 0.3426 A13 A23 A33 A43 CIE X CIE Y CIE X CIE Y CIE X CIE Y CIE X CIE Y 0.3048 0.3209 0.3089 0.3249 0.3131 0.3290 0.3172 0.3331 0.3058 0.3161 0.3098 0.3200 0.3138 0.3239 0.3178 0.3277 0.3098 0.3200 0.3138 0.3239 0.3178 0.3277 0.3217 0.3316 0.3089 0.3249 0.3131 0.3290 0.3172 0.3331 0.3213 0.3371 CIE X CIE Y CIE X CIE Y CIE X CIE Y CIE X CIE Y 0.3058 0.3161 0.3098 0.3200 0.3138 0.3239 0.3178 0.3277 0.3068 0.3113 0.3107 0.3150 0.3146 0.3187 0.3184 0.3224 0.3107 0.3150 0.3146 0.3187 0.3184 0.3224 0.3221 0.3261 0.3098 0.3200 0.3138 0.3239 0.3178 0.3277 0.3217 0.3316 A14 A24 Rev4.5, Dec 1, 2015 A34 13 A44 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Color Bin Structure <IF = 100mA, Tj = 25℃> 5300K 0.36 5600K B41 B31 0.35 6000K B42 B21 CIE Y B32 B11 0.34 B43 B22 B33 B12 B44 B23 B34 B13 B24 0.33 0.32 0.320 B14 0.325 0.330 0.335 0.340 CIE X B11 B21 B31 B41 CIE X CIE Y CIE X CIE Y CIE X CIE Y CIE X CIE Y 0.3207 0.3462 0.3250 0.3501 0.3292 0.3539 0.3334 0.3578 0.3211 0.3407 0.3252 0.3444 0.3293 0.3481 0.3333 0.3518 0.3252 0.3444 0.3293 0.3481 0.3333 0.3518 0.3374 0.3554 0.3501 0.3292 0.3539 0.3334 0.3578 0.3376 0.3250 B12 B22 B32 0.3616 B42 CIE X CIE Y CIE X CIE Y CIE X CIE Y CIE X CIE Y 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 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 B13 B23 B33 B43 CIE X CIE Y CIE X CIE Y CIE X CIE Y CIE X CIE Y 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 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 CIE X CIE Y CIE X CIE Y CIE X CIE Y CIE X CIE Y 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 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 B14 B24 Rev4.5, Dec 1, 2015 B34 14 B44 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Color Bin Structure <IF = 100mA, Tj = 25℃> 0.38 4700K 5000K 0.37 C41 C31 CIE Y 5300K 0.36 C42 C21 C11 C32 C22 C43 C12 C33 C23 0.35 C44 C13 C34 C24 0.34 0.335 C14 0.340 0.345 0.350 0.355 CIE X C11 C21 C31 C41 CIE X CIE Y CIE X CIE Y CIE X CIE Y CIE X CIE Y 0.3376 0.3616 0.3420 0.3652 0.3463 0.3687 0.3507 0.3724 0.3374 0.3554 0.3415 0.3588 0.3457 0.3622 0.3500 0.3657 0.3415 0.3588 0.3457 0.3622 0.3500 0.3657 0.3542 0.3692 0.3652 0.3463 0.3687 0.3507 0.3724 0.3551 0.3420 C12 C22 C32 0.3760 C42 CIE X CIE Y CIE X CIE Y CIE X CIE Y CIE X CIE Y 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 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 C13 C23 C33 C43 CIE X CIE Y CIE X CIE Y CIE X CIE Y CIE X CIE Y 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 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 CIE X CIE Y CIE X CIE Y CIE X CIE Y CIE X CIE Y 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 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 C14 C24 Rev4.5, Dec 1, 2015 C34 15 C44 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Color Bin Structure <IF = 100mA, Tj = 25℃> 4200K 0.39 4500K 0.38 4700K CIE Y D41 D31 D21 D42 D11 0.37 D32 D22 D12 D43 D33 D23 0.36 D13 D44 D34 D24 D14 0.35 0.34 0.350 0.355 0.360 0.365 0.370 0.375 CIE X D11 D21 D31 D41 CIE X CIE Y CIE X CIE Y CIE X CIE Y CIE X CIE Y 0.3548 0.3736 0.3595 0.3770 0.3641 0.3804 0.3689 0.3839 0.3539 0.3668 0.3584 0.3701 0.3628 0.3733 0.3674 0.3767 0.3584 0.3701 0.3628 0.3733 0.3674 0.3767 0.3720 0.3800 0.3770 0.3641 0.3804 0.3689 0.3839 0.3736 0.3595 D12 D22 D32 0.3874 D42 CIE X CIE Y CIE X CIE Y CIE X CIE Y CIE X CIE Y 0.3539 0.3668 0.3584 0.3701 0.3628 0.3733 0.3674 0.3767 0.3530 0.3601 0.3573 0.3632 0.3616 0.3663 0.3659 0.3694 0.3573 0.3632 0.3616 0.3663 0.3659 0.3694 0.3703 0.3726 0.3584 0.3701 0.3628 0.3733 0.3674 0.3767 0.3720 0.3800 D13 D23 D33 D43 CIE X CIE Y CIE X CIE Y CIE X CIE Y CIE X CIE Y 0.3530 0.3601 0.3573 0.3632 0.3616 0.3663 0.3659 0.3694 0.3520 0.3533 0.3562 0.3562 0.3603 0.3592 0.3645 0.3622 0.3562 0.3562 0.3603 0.3592 0.3645 0.3622 0.3687 0.3652 0.3573 0.3632 0.3616 0.3663 0.3659 0.3694 0.3703 0.3726 CIE X CIE Y CIE X CIE Y CIE X CIE Y CIE X CIE Y 0.3520 0.3533 0.3562 0.3562 0.3603 0.3592 0.3645 0.3622 0.3511 0.3465 0.3551 0.3493 0.3590 0.3521 0.3630 0.3550 0.3551 0.3493 0.3590 0.3521 0.3630 0.3550 0.3670 0.3578 0.3562 0.3562 0.3603 0.3592 0.3645 0.3622 0.3687 0.3652 D14 D24 Rev4.5, Dec 1, 2015 D34 16 D44 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Color Bin Structure <IF = 100mA, Tj = 25℃> 0.41 3700K 0.40 E41 4000K E31 0.39 4200K E42 E21 E32 CIE Y E11 E22 0.38 E12 E43 E33 E23 E13 0.37 E44 E34 E24 E14 0.36 0.35 0.36 0.37 0.38 0.39 0.40 CIE X E11 E21 E31 E41 CIE X CIE Y CIE X CIE Y CIE X CIE Y CIE X CIE Y 0.3736 0.3874 0.3804 0.3917 0.3871 0.3959 0.3939 0.4002 0.3720 0.3800 0.3784 0.3841 0.3849 0.3881 0.3914 0.3922 0.3784 0.3841 0.3849 0.3881 0.3914 0.3922 0.3979 0.3962 0.3917 0.3871 0.3959 0.3939 0.4002 0.4006 0.3804 E12 E22 E32 0.4044 E42 CIE X CIE Y CIE X CIE Y CIE X CIE Y CIE X CIE Y 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 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 E13 E23 E33 E43 CIE X CIE Y CIE X CIE Y CIE X CIE Y CIE X CIE Y 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 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 CIE X CIE Y CIE X CIE Y CIE X CIE Y CIE X CIE Y 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 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 E14 E24 Rev4.5, Dec 1, 2015 E34 17 E44 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Mechanical Dimensions Bottom View Top View Cathode Mark (-) Cathode Side View Circuit Cathode Anode 1 2 Zener Diode (1) All dimensions are in millimeters. (2) Scale : none (3) Undefined tolerance is ±0.2mm Rev4.5, Dec 1, 2015 18 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Recommended Solder Pad Notes : (1) All dimensions are in millimeters. (2) Scale : none (3) This drawing without tolerances are for reference only (4) Undefined tolerance is ±0.1mm Rev4.5, Dec 1, 2015 19 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Reflow Soldering Characteristics IPC/JEDEC J-STD-020 Profile Feature Sn-Pb Eutectic Assembly Pb-Free Assembly Average ramp-up rate (Tsmax to Tp) 3° C/second max. 3° C/second max. Preheat - Temperature Min (Tsmin) - Temperature Max (Tsmax) - Time (Tsmin to Tsmax) (ts) 100 °C 150 °C 60-120 seconds 150 °C 200 °C 60-180 seconds Time maintained above: - Temperature (TL) - Time (tL) 183 °C 60-150 seconds 217 °C 60-150 seconds Peak Temperature (Tp) 215℃ 260℃ Time within 5°C of actual Peak Temperature (tp)2 10-30 seconds 20-40 seconds Ramp-down Rate 6 °C/second max. 6 °C/second max. Time 25°C to Peak Temperature 6 minutes max. 8 minutes max. Caution (1) Reflow soldering is recommended not to be done more than two times. In the case of more than 24 hours passed soldering after first, LEDs will be damaged. (2) Repairs should not be done after the LEDs have been soldered. When repair is unavoidable, suitable tools must be used. (3) Die slug is to be soldered. (4) When soldering, do not put stress on the LEDs during heating. (5) After soldering, do not warp the circuit board. Rev4.5, Dec 1, 2015 20 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Emitter Tape & Reel Packaging ( Tolerance: ±0.2, Unit: mm ) (1) Quantity : Max 4,500pcs/Reel (2) Cumulative Tolerance : Cumulative Tolerance/10 pitches to be ±0.2mm (3) Adhesion Strength of Cover Tape Adhesion strength to be 0.1-0.7N when the cover tape is turned off from the carrier tape at the angle of 10˚ to the carrier tape. (4) Package : P/N, Manufacturing data Code No. and Quantity to be indicated on a damp proof Package. Rev4.5, Dec 1, 2015 21 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Emitter Tape & Reel Packaging Reel Aluminum Bag Outer Box Rev4.5, Dec 1, 2015 22 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Product Nomenclature Table 7. Part Numbering System : X1X2X3X4X5X6X7X8 Part Number Code Description Part Number Value X1 Company S X2 Top View LED series T X3X4 Color Specification W7 CRI 70 X5 Package series C C series X6X7 Characteristic code 2S X8 Revision A Tabl 8. Lot Numbering System :Y1Y2Y3Y4Y5Y6Y7Y8Y9Y10–Y11Y12Y13Y14Y15Y16Y17 Lot Number Code Description Y1Y2 Year Y3 Month Y4Y5 Day Y6 Top View LED series Y7Y8Y9Y10 Mass order Y11Y12Y13Y14Y15Y16Y17 Internal Number Rev4.5, Dec 1, 2015 Lot Number 23 Value www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Handling of Silicone Resin for LEDs (1) During processing, mechanical stress on the surface should be minimized as much as possible. Sharp objects of all types should not be used to pierce the sealing compound. (2) In general, LEDs should only be handled from the side. By the way, this also applies to LEDs without a silicone sealant, since the surface can also become scratched. (3) When populating boards in SMT production, there are basically no restrictions regarding the form of the pick and place nozzle, except that mechanical pressure on the surface of the resin must be prevented. This is assured by choosing a pick and place nozzle which is larger than the LED’s reflector area. (4) Silicone differs from materials conventionally used for the manufacturing of LEDs. These conditions must be considered during the handling of such devices. Compared to standard encapsulants, silicone is generally softer, and the surface is more likely to attract dust. As mentioned previously, the increased sensitivity to dust requires special care during processing. In cases where a minimal level of dirt and dust particles cannot be guaranteed, a suitable cleaning solution must be applied to the surface after the soldering of components. (5) SSC suggests using isopropyl alcohol for cleaning. In case other solvents are used, it must be assured that these solvents do not dissolve the package or resin. Ultrasonic cleaning is not recommended. Ultrasonic cleaning may cause damage to the LED. (6) Please do not mold this product into another resin (epoxy, urethane, etc) and do not handle this. product with acid or sulfur material in sealed space. Rev4.5, Dec 1, 2015 24 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Precaution for Use (1) Storage To avoid the moisture penetration, we recommend store in a dry box with a desiccant. The recommended storage temperature range is 5℃ to 30℃ and a maximum humidity of RH50%. (2) Use Precaution after Opening the Packaging Use proper SMT techniques when the LED is to be soldered dipped as separation of the lens may affect the light output efficiency. Pay attention to the following: a. Recommend conditions after opening the package - Sealing - Temperature : 5 ~ 30℃ Humidity : less than RH60% b. If the package has been opened more than 4 week(MSL_2a) or the color of the desiccant changes, components should be dried for 10-24hr at 65±5℃ (3) Do not apply mechanical force or excess vibration during the cooling process to normal temperature after soldering. (4) Do not rapidly cool device after soldering. (5) Components should not be mounted on warped (non coplanar) portion of PCB. (6) Radioactive exposure is not considered for the products listed here in. (7) Gallium arsenide is used in some of the products listed in this publication. These products are dangerous if they are burned or shredded in the process of disposal. It is also dangerous to drink the liquid or inhale the gas generated by such products when chemically disposed of. (8) This device should not be used in any type of fluid such as water, oil, organic solvent and etc. When washing is required, IPA (Isopropyl Alcohol) should be used. (9) When the LEDs are in operation the maximum current should be decided after measuring the package temperature. . Rev4.5, Nov 26, 2015 25 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Precaution for Use (10) The appearance and specifications of the product may be modified for improvement without notice. (11) Long time exposure of sunlight or occasional UV exposure will cause lens discoloration. (12) VOCs (Volatile organic compounds) emitted from materials used in the construction of fixtures can penetrate silicone encapsulants of LEDs and discolor when exposed to heat and photonic energy. The result can be a significant loss of light output from the fixture. Knowledge of the properties of the materials selected to be used in the construction of fixtures can help prevent these issues. (13) Attaching LEDs, do not use adhesives that outgas organic vapor. (14) The driving circuit must be designed to allow forward voltage only when it is ON or OFF. If the reverse voltage is applied to LED, migration can be generated resulting in LED damage. (15) Similar to most Solid state devices; LEDs are sensitive to Electro-Static Discharge (ESD) and Electrical Over Stress (EOS). 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: - 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) Rev4.5, Nov 26, 2015 26 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Precaution for Use 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 Rev4.5, Nov 26, 2015 27 www.seoulsemicon.com Product Data Sheet STW7C2SA – Mid-Power LED Company Information Published by Seoul Semiconductor © 2013 All Rights Reserved. Company Information Seoul Semiconductor (SeoulSemicon.com) manufacturers and packages a wide selection of light emitting diodes (LEDs) for the automotive, general illumination/lighting, 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”, deep UV LEDs, "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, high-brightness LEDs, mid-power LEDs, side-view LEDs, through-hole type LED lamps, custom displays, and sensors. The company is vertically integrated from epitaxial growth and chip manufacture in it’s fully owned subsidiary, Seoul Viosys, through packaged LEDs and LED modules in three Seoul Semiconductor manufacturing facilities. Seoul Viosys also manufactures a wide range of unique deep-UV wavelength devices. 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. Rev4.5, Dec 1, 2015 28 www.seoulsemicon.com