深圳市萬聯(lián)盛科技有限公司
專注于高品質(zhì)電阻器 - 豐富的生產(chǎn)研發(fā)管理團(tuán)隊(duì)
18617185077 彭生
0755-27606841
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1.Flameproof UL94V0 Molded Package
模壓樹酯封裝。
2.Small size are good for high density application
功率型精密度高,小型化能高密度插裝。
3.High power rating up to 3Watts
功率范圍可達(dá)3W以上。
4.High thermal stability and low surface temperature rise
耐熱性佳，表面溫升低。
5.Compatible with lead (Pb)-free and lead containing soldering processes
符合無鉛（Pb）和含鉛焊接工藝要求。
6.The resistors are suitable for processing on automatic SMD assembly systems.
可用于自動(dòng)表面貼裝(SMD)裝配系統(tǒng)。它們適于通過回流焊、波峰焊進(jìn)行自動(dòng)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 | 標(biāo)稱功率 at 70℃ | 工作溫度范圍 | 最大工作電壓 V | 溫度係數(shù) PPM/℃ | 電阻值范圍 |
| ±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 |
| 測試項(xiàng)目/ Item | 測試要求/Requirement | 測試步驟/ Test Method |
|
電阻溫度系數(shù)試驗(yàn) Temperature coefficient |
±25、50、100PPM/℃. | -55℃~+125℃, 25℃ is the reference temperature. |
|
短時(shí)間過附載試驗(yàn) Short Time Overload |
≦±0.5%+0.05Ω) | RCWV*×2.5 Times or Max. Overload voltage for 5 seconds. |
|
耐濕負(fù)載試驗(yàn) 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”. |
|
壽命負(fù)載試驗(yàn) Endurance |
≦±(1.0%+0.05Ω) | 70±2℃, Max. Working voltage for 1,000 hrs. with 1.5 hrs. “ON” and 0.5 hrs. “OFF”. |
|
彎曲端子強(qiáng)度試驗(yàn) Bending Strength |
≦±(0.5%+0.05Ω) | Bending once for 5 seconds with 2mm. |
|
焊錫性試驗(yàn) Solder ability |
≧95% min. coverage | 245±5℃ for 3 seconds. |
|
焊錫耐熱性試驗(yàn) Resistance to soldering heat |
No evidence of mechanical damage ≦(±1%+0.05Ω) | 260±5°C for 10 seconds |
|
絕緣耐壓試驗(yàn) Voltage Proof |
No breakdown or flashover | AC 500V for 1 minute. |
|
絕緣電阻試驗(yàn) Insulation Resistance |
>1,000MΩ | DC 500V Meg Meter. |
