应用范围 | 发光(led) | 品牌 | 国产 |
型号 | 50w白光 | 结构 | 点接触型 |
封装形式 | 功率型 | 发光颜色 | 白色 |
led封装 | 无色透明封装(t) | 出光面特征 | 圆形 |
发光强度角分布 | 高指向性 | 正向工作电流 | 1.7(a) |
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| 非标准产品,可根据客户需求订制。 |
1.test items and results
(测试项目与结果)
| test item (测试项目) | reference standard (参考标准) | test conditions (测试条件) | test hours/cycle (测试时间/周期) | units tested (单位) | ac/re (允收标准) |
operation test (操作测试) | operating life test (寿命实验) |
| ta=25℃±5℃,if=350ma | 1000 hrs | 22 | 0/22 |
environment test (环境测试)
| high temperature storage (高温储存) | jeita ed-4701 200 201 | ta=100℃±5℃ | 1000 hrs | 22 | 0/22 |
low temperature storage (低温测试) | jeita ed-4701 200 201 | ta=-40℃±5℃ | 1000 hrs | 22 | 0/22 | |
high temperature.& humidity storage 高温高湿储存 |
| ta=85℃±5℃, rh=85%±5%rh | 1000 hrs | 22 | 0/22 | |
thermal shock (冷热冲击) | jeita ed-4701 300 307 | -40°±5℃çè+85℃±5℃ 30min dwell / 5 min transfer | 50 cycles | 22 | 0/22 | |
soldering test (手工焊接测试) | solder ability (焊接性) |
| 350±5℃,5±1 sec | 1 time over 95%wetting | 22 | 0/22 |
resistance to soldering heat (耐焊性) |
| 350±5℃,5±1 sec | 1 time | 22 | 0/22 |
2.failure criteria
(失效标准)
- electrical failures:
(电性失效)
- vf>±10%(电压值>±5%)
- ir(vr=5v)>10ua(反向电流>10ua)
- light output degradation:
(光通量衰减)
- flux degradation% >10% max ;>3% average
(光通量最大衰减>10%;平均衰减>3%)
- visual failures:
(外观不良)
- broken or damaged package or lead(包装破损)
- solder ability < 95% wetting(有效焊接面积< 95%)
- dimension out of tolerance(尺寸超出公差)
- discolor of lens(透镜变色)
■note:it is required that the leds should be attached heat-sink when these leds are operating.
(备注:以上这些是要求在操作led的过程当中要重视散热的问题)