Hebei I.T. (Shanghai) Co., Ltd. SMD SPECIFICATION 型号:PLCC2LW3CT 1、Features/特 征: z Emitting Color/发光颜色:White/白色 z Lens Type/封装特性:Yellow Diffused/黄色散射 z Device Outline/外形特征:3.5×2.8×1.9 (unit:mm) z HBM ESD:Class 2/人体抗静电指标:Class 2 z Pb-Free/无铅 z RoHS compliant/符合 RoHS 标准 2、Applications/应 用: z Backlight for Mobile,Machine Vision, LCD Display/手机、电话、显示屏背光源 z Backlight in Dashboard and switch of Automive/汽车仪表盘、记程器背光源 3、Outline Dimensions/产品外形尺寸: ﹢ ﹣ ﹢ ﹣ Notes:(备注) Tolerance is 0.1mm(公差 0.1mm) 参考焊盘尺寸 Http:// www. ledz .com Page 1 of 12 Hebei I.T. (Shanghai) Co., Ltd. SMD SPECIFICATION 型号:PLCC2LW3CT 4、Absolute maximum ratings/极限参数(Ta = 25℃): Parameter 参数 Symbol 符号 Value 参数 Unit 单位 Power Dissipation 损耗功率 Pd 100 mW Reverse Voltage 反向电压 VR 5 V Pulse Current 正向峰值电流[1] IFp 100 mA Forward Current 正向工作电流 IFm 25 mA Operating Temperature 工作温度范围 Topr - 40 ~ +85 ℃ Storage Temperature 储存温度范围 Tstr - 40 ~ +100 ℃ Notes/备注:[1]. 0.1ms pulse width,1/10 Duty. /[1] 脉冲宽度0.1ms,占空比1/10。 5、Electrical and optical characteristics/光电参数(Ta = 25℃): Parameter 参数 Symbol 符号 Test Condition 测试条件 Min. Typ. Max. Unit 单位 Forward Voltage 正向电压 VF IF = 20mA —— 3.2 3.6 V Reverse Current 反向电流 IR VR = 5V —— —— 30 μA CCT IF = 20mA 2580 —— 4730 K IV IF = 20mA 1520 1900 —— mcd Flux IF =20mA 6.0 —— 8.0 lm Ra IF = 20mA 80 —— —— —— 2θ1/2 IF = 20mA —— 120 —— Deg. Clor Correlated Temperature 色温 Luminous Intensity 发光强度 Luminous Flux 光通量[1] color rendering index 显色指数 Viewing Angle 发光指向角 Value 参数[2] Notes/备注:[1] The test standard is the luminous intensity, and the luminous flux is for your reference only./[1]本公司以发光强度为分档标准,光通量仅供参考。 [2] Tolerance 误差: VF:±0.10V,Iv/Flux:±15%,其它:±5 Http:// www. ledz .com Page 2 of 12 Hebei I.T. (Shanghai) Co., Ltd. SMD SPECIFICATION 型号:PLCC2LW3CT 6、Prohuct Ranks/产品分档范围: 发光强度分档标准 发光强度 Iv 值(mcd) IF=20mA 1520-1800 电压分档标准 代表符号 正向电压VF值(V) IF=20mA 代表 符号 U1 2.80--2.90 N 1800-2130 U2 2.90--3.00 P 2130-2550 V1 3.00—3.10 Q 3.10—3.20 R 3.20—3.30 S 3.30—3.40 T 3.40—3.50 U 3.50—3.60 V B B Notes/备注:Rank error/分档误差: VF:±0.10V,Iv:±15% Http:// www. ledz .com Page 3 of 12 Hebei I.T. (Shanghai) Co., Ltd. SMD SPECIFICATION 型号:PLCC2LW3CT 色坐标分档: 色坐标误差:±0.01 代码 Wf1 Wf3 Wf5 Wf7 Wf9 Wg1 Wg3 Wg5 Wg7 Wg9 Wg11 Wg13 Wg15 Wh2 Wh4 Wh6 Wh8 轴 参数 X 0.3559 0.3547 0.3642 0.3659 Y 0.3826 0.3736 0.3805 0.3899 X 0.3535 0.3523 0.3608 0.3625 Y 0.3646 0.3555 0.3616 0.3710 X 0.3512 0.3500 0.3573 0.3591 Y 0.3466 0.3374 0.3427 0.3521 X 0.3642 0.3625 0.3714 0.3736 Y 0.3805 0.3710 0.3775 0.3874 X 0.3608 0.3591 0.3670 0.3692 Y 0.3616 0.3521 0.3578 0.3676 X 0.3757 0.3736 0.3826 0.3852 Y 0.3973 0.3874 0.3930 0.4033 X 0.3714 0.3692 0.3772 0.3799 Y 0.3775 0.3676 0.3726 0.3828 X 0.3670 0.3648 0.3719 0.3746 Y 0.3578 0.3479 0.3521 0.3624 X 0.3826 0.3799 0.3884 0.3916 Y 0.3930 0.3828 0.3881 0.3987 X 0.3772 0.3746 0.3822 0.3853 Y 0.3726 0.3624 0.3670 0.3775 X 0.3947 0.3916 0.4005 0.4042 Y 0.4093 0.3987 0.4044 0.4153 X 0.3884 0.3853 0.3934 0.3969 Y 0.3881 0.3775 0.3825 0.3934 X 0.3822 0.3790 0.3862 0.3898 Y 0.3670 0.3564 0.3606 0.3716 X 0.3997 0.4097 0.4067 0.3970 Y 0.4015 0.4065 0.3982 0.3934 X 0.3943 0.4036 0.4006 0.3916 Y 0.3853 0.3898 0.3815 0.3772 X 0.3890 0.3975 0.3945 0.3863 Y 0.3690 0.3731 0.3648 0.3609 X 0.4097 0.4198 0.4164 0.4067 Y 0.4065 0.4115 0.4029 0.3982 Http:// www. ledz .com 代码 Wf2 Wf4 Wf6 Wf8 Wf10 Wg2 Wg4 Wg6 Wg8 Wg10 Wg12 Wg14 Wh1 Wh3 Wh5 Wh7 Wh9 轴 参数 X 0.3547 0.3535 0.3625 0.3642 Y 0.3736 0.3646 0.3710 0.3805 X 0.3523 0.3512 0.3591 0.3608 Y 0.3555 0.3466 0.3521 0.3616 X 0.3659 0.3642 0.3736 0.3757 Y 0.3899 0.3805 0.3874 0.3973 X 0.3625 0.3608 0.3692 0.3714 Y 0.3710 0.3616 0.3676 0.3775 X 0.3591 0.3573 0.3648 0.3670 Y 0.3521 0.3427 0.3479 0.3578 X 0.3736 0.3714 0.3799 0.3826 Y 0.3874 0.3775 0.3828 0.3930 X 0.3692 0.3670 0.3746 0.3772 Y 0.3676 0.3578 0.3624 0.3726 X 0.3852 0.3826 0.3916 0.3947 Y 0.4033 0.3930 0.3987 0.4093 X 0.3799 0.3772 0.3853 0.3884 Y 0.3828 0.3726 0.3775 0.3881 X 0.3746 0.3719 0.3790 0.3822 Y 0.3624 0.3521 0.3564 0.3670 X 0.3916 0.3884 0.3969 0.4005 Y 0.3987 0.3881 0.3934 0.4044 X 0.3853 0.3822 0.3898 0.3934 Y 0.3775 0.3670 0.3716 0.3825 X 0.4023 0.4128 0.4097 0.3997 Y 0.4097 0.4148 0.4065 0.4015 X 0.3970 0.4067 0.4036 0.3943 Y 0.3934 0.3982 0.3898 0.3853 X 0.3916 0.4006 0.3975 0.3890 Y 0.3772 0.3815 0.3731 0.3690 X 0.4128 0.4232 0.4198 0.4097 Y 0.4148 X 0.4067 0.4164 0.4129 0.4036 Y 0.3982 0.4029 0.3944 0.3898 0.42 0.4115 0.4065 Page 4 of 12 Hebei I.T. (Shanghai) Co., Ltd. SMD SPECIFICATION 型号:PLCC2LW3CT 代码 Wh10 Wh12 Wh14 Wh16 Wh18 Wi2 Wi4 Wi6 Wi8 Wi10 Wi12 Wi14 Wi16 Wi18 Wj2 Wj4 Wj6 Wj8 轴 参数 X 0.4036 0.4129 0.4095 0.4006 Y 0.3898 0.3944 0.3858 0.3815 X 0.3975 0.4061 0.4027 0.3945 Y 0.3731 0.3773 0.3687 0.3648 X 0.4198 0.4299 0.4261 0.4164 Y 0.4115 0.4165 0.4077 0.4029 X 0.4129 0.4230 0.4185 0.4095 Y 0.3944 0.3989 0.3902 0.3858 X 0.4061 0.4147 0.4109 0.4027 Y 0.3773 0.3814 0.3726 0.3687 X 0.4299 0.4387 0.4346 0.4261 Y 0.4165 0.4197 0.4108 0.4077 X 0.4230 0.4304 0.4263 0.4185 Y 0.3989 0.4018 0.3929 0.3902 X 0.4147 0.4222 0.4181 0.4109 Y 0.3814 0.3840 0.3751 0.3726 X 0.4387 0.4474 0.4430 0.4346 Y 0.4197 0.4238 0.4138 0.4108 X 0.4304 0.4386 0.4342 0.4263 Y 0.4018 0.4047 0.3957 0.3929 X 0.4222 0.4298 0.4253 0.4181 Y 0.3840 0.3867 0.3776 0.3751 X 0.4474 0.4562 0.4515 0.4430 Y 0.4238 0.4260 0.4168 0.4138 X 0.4386 0.4467 0.4420 0.4342 Y 0.4047 0.4076 0.3983 0.3957 X 0.4298 0.4373 0.4326 0.4253 Y 0.3867 0.3893 0.3801 0.3776 X 0.4562 0.4625 0.4576 0.4515 Y 0.426 0.4275 0.4182 0.4168 X 0.4467 0.4526 0.4477 0.4420 Y 0.4076 0.4090 0.3998 0.3983 X 0.4373 0.4423 0.4379 0.4326 Y 0.3893 0.3905 0.3813 0.3801 X 0.4625 0.4688 0.4636 0.4576 Y 0.4275 0.4290 0.4197 0.4182 Http:// www. ledz .com 代码 Wh11 Wh13 Wh15 Wh17 Wi1 Wi3 Wi5 Wi7 Wi9 Wi11 Wi13 Wi15 Wi17 Wj1 Wj3 Wj5 Wj7 Wj9 轴 参数 X 0.4006 0.4095 0.4061 0.3975 Y 0.3815 0.3858 0.3773 0.3731 X 0.4232 0.4337 0.4299 0.4198 Y 0.42 0.4253 0.4165 0.4115 X 0.4164 0.4261 0.4230 0.4129 Y 0.4029 0.4077 0.3989 0.3944 X 0.4095 0.4185 0.4147 0.4061 Y 0.3858 0.3902 0.3814 0.3773 X 0.4337 0.4428 0.4387 0.4299 Y 0.4253 0.4286 0.4197 0.4165 X 0.4261 0.4346 0.4304 0.4230 Y 0.4077 0.4108 0.4018 0.3989 X 0.4185 0.4263 0.4222 0.4147 Y 0.3902 0.3929 0.3840 0.3814 X 0.4428 0.4519 0.4474 0.4387 Y 0.4286 0.4319 0.4238 0.4197 X 0.4346 0.4430 0.4386 0.4304 Y 0.4108 0.4138 0.4047 0.4018 X 0.4263 0.4342 0.4298 0.4222 Y 0.3929 0.3957 0.3867 0.3840 X 0.4519 0.4609 0.4562 0.4474 Y 0.4319 0.4352 0.4260 0.4238 X 0.4430 0.4515 0.4467 0.4386 Y 0.4138 0.4168 0.4076 0.4047 X 0.4342 0.4420 0.4373 0.4298 Y 0.3957 0.3983 0.3893 0.3867 X 0.4609 0.4673 0.4625 0.4562 Y 0.4352 0.4365 0.4275 0.426 X 0.4515 0.4576 0.4526 0.4467 Y 0.4168 0.4182 0.4090 0.4076 X 0.4420 0.4477 0.4423 0.4373 Y 0.3983 0.3998 0.3905 0.3893 X 0.4673 0.4739 0.4688 0.4625 Y 0.4365 0.4382 0.4290 0.4275 X 0.4576 0.4636 0.4585 0.4526 Y 0.4182 0.4197 0.4104 0.4090 Page 5 of 12 Hebei I.T. 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SMD SPECIFICATION 型号:PLCC2LW3CT 代码 Wj10 Wj12 Wj14 Wj16 Wj18 Wj20 Wj22 Wj24 轴 参数 代码 X 0.4526 0.4585 0.4534 0.4477 Y 0.4090 0.4104 0.4011 0.3998 X 0.4423 0.4483 0.4432 0.4379 Y 0.3905 0.3918 0.3826 0.3813 X 0.4688 0.4750 0.4697 0.4636 Y 0.4290 0.4304 0.4210 0.4197 X 0.4585 0.4644 0.4591 0.4534 Y 0.4104 0.4118 0.4024 0.4011 X Y X Y X Y X Y 0.4483 0.4538 0.4485 0.4432 Wj19 0.3918 0.3931 0.3838 0.3826 0.4750 0.4813 0.4758 0.4697 Wj21 0.4304 0.4319 0.4225 0.4210 0.4644 0.4703 0.4648 0.4591 Wj23 0.4118 0.4132 0.4038 0.4024 0.4538 0.4593 0.4538 0.4485 0.3931 0.3944 0.3850 0.3838 Wj11 Wj13 Wj15 Wj17 轴 参数 X 0.4477 0.4534 0.4483 0.4423 Y 0.3998 0.4011 0.3918 0.3905 X 0.4739 0.4803 0.4750 0.4688 Y 0.4382 0.4398 0.4304 0.4290 X 0.4636 0.4697 0.4644 0.4585 Y 0.4197 0.4210 0.4118 0.4104 X 0.4534 0.4591 0.4538 0.4483 Y 0.4011 0.4024 0.3931 0.3918 X Y X Y X Y 0.4803 0.4868 0.4813 0.4750 0.4398 0.4413 0.4319 0.4304 0.4697 0.4758 0.4703 0.4644 0.4210 0.4225 0.4132 0.4118 0.4591 0.4648 0.4593 0.4538 0.4024 0.4038 0.3944 0.3931 Diagram 2870K 0.44 3710K wi13 wi1 0.42 wh13 wh7 0.38 0.36 0.34 0.34 wi7 wi8 wi2 wi14 wj3 wj1 wj2 wj8 wj19 wj7 wj13 wj14 wj9 wj15 wj20 wj21 wi15 wh14 wi9 wj16wj22 wi3 wh8 wj4wj10 wg6 wi16 wh2 wh15 wi10 wj23 wh9 wg12 wi4 wg1 wj5wj11wj17 wi17 4730K wh3 wh16 wg7 wj24 wf6 wh10 wi5 wi11 wj6wj12wj18 wg13 wg2 wh4 wh17 wi18 wg8 wf1 wi12 wf7 wh11 wi6 wg3 wg14 wh5 wh18 wf2 wg9 wh12 wf8 wh6 wg4 wg15 wf3 4260K 0.40 2580K 3220K wf9 wg5 wf4 wf10 wf5 0.36 Http:// www. ledz .com wg11 wh1 wg10 0.38 0.40 0.42 0.44 0.46 0.48 Page 6 of 12 Hebei I.T. (Shanghai) Co., Ltd. SMD SPECIFICATION 型号:PLCC2LW3CT 7、Typical electrical/optical characteristic curves/光电特性曲线: Fig.1 正向电流 Vs. 正向电压 Fig.2 相对亮度 Vs. 正向电流 2.5 Luminous Intensity Relative Value at IF=20mA Forward Current(mA) 50 40 30 20 10 0 2.6 2.8 3.0 3.2 3.4 Forward Voltage(V) Relative Luminous Intensity Forward Current(mA) 40 30 20 10 20 40 60 80 100 Ambient Temperature TA (℃) 1.0 Relative Spectral Power Distribution Standard Eye Response Cruve 0.8 1.0 0.5 0 10 20 30 40 IF-Forward Current (mA) 50 Fig.4 相对亮度 Vs. 环境温度 50 0 1.5 0 3.6 Fig.3 正向电流 Vs. 环境温度 0 2.0 2.5 2.0 1.5 1.0 0.5 0 -40 0 20 -20 40 60 Ambient Temperature TA (℃) 80 90 SPATIAL DISTRIBUTION Warm White 0.6 1.0 0.4 0.9 0.8 0.2 0.0 350 400 450 500 550 600 650 700 750 800 850 Wavelength λ(nm) Http:// www. ledz .com 0.7 0.5 0.3 0.1 0 0.2 0.4 0.6 Page 7 of 12 Hebei I.T. (Shanghai) Co., Ltd. SMD SPECIFICATION 型号:PLCC2LW3CT 8、Relibility Analysis/可靠性试验 8.1 Test Items And Results/测试项目和判据 Q’ty/ 数量 Time/ 时间 Standard/判定 GB/T 4937, Ⅱ,2.2 20 2times ALL PASS Tsld=235±5℃,3sec GB/T 4937, Ⅱ,2.1 20 1times Over 95% ALL PASS 3 Temperature Cycle/ 高低温循环 -40℃—— 100℃ 30min ~ 30min The cut is not more than 1 min GB/T 4937, Ⅲ,1 20 50cycles ALL PASS 4 Moisture Resistance Cyclic /湿热循环 25℃/12hr~ 55℃/12hr 95%RH GB/T 4937, Ⅲ,4 20 6cycles ALL PASS 5 High Temperature Storage /高温储存 Ta=100℃ GB/T 4937, Ⅲ,2 20 1000hrs ALL PASS 6 Low Temperature Storage /低温储存 Ta=-40℃ GB/T 4937, Ⅲ,2 20 1000hrs ALL PASS GB/T 18904.3 Part A 20 1000hrs Lm decay <3% No. Item/项目 Test Condition/测试条件 1 IR Reflow (Reflow Soldering) /回流焊接 Tsld=220℃,10sec 2 Solder ability/可焊性 7 Steady State perating Life /电耐久性 [1] IF=20mA Ta=25℃ Spec. / 引用标准 注:[1] 光衰测试数据以光通量为准。 8.2 Criteria For Judging Damage/判断标准 Symbol/ 符号 Test conditions /测试条件 Luminous Intensity/亮度 Iv Forward Voltage/正向电压 Reverse current/反向电流 Item/项目 Criteria for Judgement /判断标准 Min./最小值 Max./最大值 IF=20mA L.S.L *0.7 / VF IF=20mA / U.S.L*1.1 IR VR=5v / U.S.L*2 9 *U.S.L.:Upper Standard Level / 上限 *L.S.L.:Lower Standard Level / 下限 、Notes/注意 9.1 Moisture Proof Packaging/ 防潮包装 9.1.1 LEDs need to package in mois ture proof bag. When moisture is absorbed into the SMT package it may vaporize and expand during soldering. There is a possibility that this can cause Http:// www. ledz .com Page 8 of 12 Hebei I.T. (Shanghai) Co., Ltd. SMD SPECIFICATION 型号:PLCC2LW3CT exfoliation of the contacts and damage to the optical characteristics of the LEDs. For this reason, the moisture proof bag is used to keep moisture to a minimum in the bag. 产品必须包封装在防潮包装袋中。当湿气进入防潮包装袋的时候,在焊接时,湿气会 受热汽化膨胀,从而可能影响产品的光学特性,甚至造成封装胶体的开裂剥离。因此,防 潮袋要求放置在保持低湿度的盒中。 9.1.2 Moisture proof function is in active. The moisture proof bag is made of an aluminum moisture proof bag. A package of a moisture absorbent material (silica gel) is inserted into the aluminum moisture proof bag. The silica gel turns the smashing from the transparent circular spherical pellet. 防潮的作用是缓慢的。防潮袋使用铝防潮袋,并在铝防潮袋中放入潮气吸收材料(硅 胶干燥剂)。当硅胶干燥剂吸收潮气后,硅胶干燥剂从透明圆形球状颗粒变成粉碎物。 9.2 Storage Method/ 储存方式 9.2.1 Before opening the bag: The LEDs should be used within a year and kept at 30℃ or less and 60%RH or less. The moisture proof bag with absorbent material is needed when storing the LEDs. 拆开包装袋之前:产品可以储存一年,但要求放置在温度低于30℃,湿度低于60%的环 境中;当存放产品时,必须放置在带有干燥剂的防潮容器中。 9.2.2 After opening the bag: The LEDs should be soldered within 24 hours after opening the package. If unused LEDs remain, they should be stored in moisture proof bags with moisture absorbent material. It recommended that the user use the LEDs as soon as possible. If the LEDs have exceeded the storage time or the moisture absorbent material has faded away. Baking process should be performed by using more than 24hours baking at 60±5℃ before using LEDs. 拆开包装袋之后:产品应该在拆封后的24小时内焊接完毕;如果没用完,产品应该储 存在带有干燥剂的防潮包装袋中;建议客户尽快的使用完产品;如果产品超出了使用期限 或者干燥剂失效,那么产品在使用前必须在60±5℃中烘烤至少24小时。 √正确 Http:// www. ledz .com X错误 Page 9 of 12 Hebei I.T. (Shanghai) Co., Ltd. SMD SPECIFICATION 型号:PLCC2LW3CT 9.3 Heat Generation/ 产品热量的产生 Thermal design of the end applications are of paramount importance. Please consider the heat generation of the LED when making the system design. It is necessary to avoid intense heat generation and operate within the maximum ratings given in this specification. 应用产品的热学设计是至关重要的。在做系统设计时,请考虑LED的散热,避免热量 的积累,必须严格的在允许的温度范围内使用。 9.4 Soldering/ 焊接 9.4.1 Lead Solder/ 回流焊接 9.4.2 Notes for reflow soldering/回流焊注意事项: 1. Baking process should be performed by using more than 24hours baking at 60±5℃ before using LEDs./ 在使用前LED必须在60±5℃中烘烤至少24小时。 2. Please choose the right nozzle to avoid the damage to products due to the pressure./请 选择合适的吸嘴大小和压力,以避免对产品产生不良隐患。 3. No more than twice for reflow soldering./回流焊不可超过两次。 10.4.3 Hand Soldering(Not Recommended)/手工焊接(不推荐) Soldering iron/烙铁焊接:260 degrees C max/不超过260℃;3 seconds max/不超过3s; once/允许1次. Http:// www. ledz .com Page 10 of 12 Hebei I.T. (Shanghai) Co., Ltd. SMD SPECIFICATION 型号:PLCC2LW3CT 9.5 Cleaning/ 清洗 It is recommended that isopropyl alcohol be used as a solvent for cleaning the LEDs. It should be confirmed beforehand whether the solvents will dissolve the package the resin or not when using other solvents. Before cleaning, a pre-test should be done to confirm whether any damage to the LEDs will occur. Please do not clean the LEDs by the ultrasonic. 建议使用酒精作为溶剂清洗LED。若要使用其他溶剂,应该预先证实是否能溶化封装 料。在清洗作业前,必须预先实验确认对LEDS无任何的伤害。请不要使用超声波清洗LED。 9.6 Static Electricity/ 静电 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 precautions be taken against surge voltage to the equipment that mounts the LEDs. 在接触LED时,建议使用防静电手腕带或防静电手套。所有的器件、设备和机器必须 有可靠的接地。对所有LED接触的设备,建议采取预防措施消除冲击电压。 9.7 Others/ 其他 1. The LED light output is strong enough to injure human eyes. Precautions must be taken to prevent looking directly at the LEDs with unaided eyes for more than a few seconds. LED的光辐射足够强时,会对人眼造成伤害。若眼睛要直接看LED,并且要一定的时 间,则必须采取相应防护措施。 2. LED operating environment and sulfur element composition cannot be over 100PPM in the LED mating usage material. LED工作环境及与LED适配的材料中硫元素及化合物成份不可超过100PPM。 3. Not suitable to operate in acidic environment, PH<7 LED不可用在PH<7的酸性环境。 4. When we need to use external glue for LED application products, please make sure that the external gluematches the LED packaging glue. Additionally ,as most of LED packaging glue is silica gel, and it has strong Oxygen permeability as well as strong moisture permeability; in order to prevent external material from getting into the inside of LED, which may cause the Http:// www. ledz .com Page 11 of 12 Hebei I.T. (Shanghai) Co., Ltd. SMD SPECIFICATION 型号:PLCC2LW3CT malfunction of LED, the single content of Bromine element is required to be less than 900PPM,the single content of Chlorine element is required to be less than 900PPM,the total content of Bromine element and Chlorine element in the external glue of the application products is required to be less than 1500PPM. 在使用外封胶涂抹LED产品时,应确保外封胶与LED封装胶水相匹配,因为大多数LED 的封装胶水为硅胶,它有较强的氧化性和较强的吸湿性,必须防止外封材质进入LED内部 以造成LED的损伤,单一的溴元素含量要求小于900PPM,单一氯元素含量要求小于 900PPM,在涂抹LED产品时要求外封胶溴元素与氯元素总含量必须小于1500PPM。 5. To ensure the quality of our LEDs, So please do not put pressure on the LEDs. 为确保LED的可靠性,在操作过程中不可施加压力在LED器件胶体表面。 √正确 Http:// www. ledz .com X 错误 Page 12 of 12