深圳市万联盛科技有限公司
专注于高品质电阻器 - 丰富的生产研发管理团队
18617185077 彭生
0755-27606841
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1.Flameproof UL94V0 Molded Package
模压树酯封装。
2.Small size are good for high density application
功率型精密度高,小型化能高密度插装。
3.High power rating up to 3Watts
功率范围可达3W以上。
4.High thermal stability and low surface temperature rise
耐热性佳，表面温升低。
5.Compatible with lead (Pb)-free and lead containing soldering processes
符合无铅（Pb）和含铅焊接工艺要求。
6.The resistors are suitable for processing on automatic SMD assembly systems.
可用于自动表面贴装(SMD)装配系统。它们适于通过回流焊、波峰焊进行自动焊接。
| Rated Wattage | A±0.3 | B±0.3 | C±0.3 | D±0.3 | E Max | F±0.3 |
| 1810 1W | 2.6 | 4.05 | 1.40 | 2.0 | 4.6 | 1.25 |
| 3015 2W | 3.8 | 6.5 | 1.4 | 3.0 | 7.5 | 1.3 |
| 3816 2W | 4.2 | 8.6 | 1.4 | 3.50 | 9.6 | 1.8 |
| 4523 3W | 5.5 | 13.5 | 1.7 | 5.0 | 12 | 2.3 |
| Item Type | 标称功率 at 70℃ | 工作温度范围 | 最大工作电压 V | 溫度係數 PPM/℃ | 电阻值范围 |
| ±1.0%、±2.0%、±5.0% | |||||
| SMW 1810 | 1W | -55 ~175℃ | 200V | 25、50、100 | 10Ω~1MΩ |
| SMW 3015 | 2W | -55 ~175℃ | 300V | 25、50、100 | 10Ω~1MΩ |
| SMW 3816 | 2W | -55 ~175℃ | 300V | 25、50、100 | 10Ω~1MΩ |
| SWM 4523 | 3W | -55 ~175℃ | 500V | 25、50、100 | 10Ω~1MΩ |
| 测试项目/ Item | 测试要求/Requirement | 测试步骤/ Test Method |
|
电阻温度系数试验 Temperature coefficient |
±25、50、100PPM/℃. | -55℃~+125℃, 25℃ is the reference temperature. |
|
短时间过附载试验 Short Time Overload |
≦±0.5%+0.05Ω) | RCWV*×2.5 Times or Max. Overload voltage for 5 seconds. |
|
耐湿负载试验 Damp Heat with Load |
≦±(1.0%+0.05Ω) | 40±2℃, 90~95% R.H. Max. Working voltage for 1,000 hrs. with 1.5 hrs. “ON” and 0.5 hrs. “OFF”. |
|
寿命负载试验 Endurance |
≦±(1.0%+0.05Ω) | 70±2℃, Max. Working voltage for 1,000 hrs. with 1.5 hrs. “ON” and 0.5 hrs. “OFF”. |
|
弯曲端子强度试验 Bending Strength |
≦±(0.5%+0.05Ω) | Bending once for 5 seconds with 2mm. |
|
焊锡性试验 Solder ability |
≧95% min. coverage | 245±5℃ for 3 seconds. |
|
焊锡耐热性试验 Resistance to soldering heat |
No evidence of mechanical damage ≦(±1%+0.05Ω) | 260±5°C for 10 seconds |
|
绝缘耐压试验 Voltage Proof |
No breakdown or flashover | AC 500V for 1 minute. |
|
绝缘电阻试验 Insulation Resistance |
>1,000MΩ | DC 500V Meg Meter. |
