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.Good performance in moisture resistance, small size, anti-oxidization ,good
2.thermal stability, nonflammability, overload stability.
耐温、抗氧化、热稳定性好、不燃性、超负载稳定性好。
3.Operating ambient temperature:-55°C ~ +155°C. 使用环境温度。
4.The surface is nonflammable , 表面涂不燃性面漆。
5.Resistance tolerance阻值误差: ±2%, ±5%.
| 額定電力 Rated power |
絕緣耐電壓 Dielectric withstanding voltage |
KNP阻值範圍(Ω) KNP Resistance Range(Ω) |
NKNP阻值範圍(Ω) NKNP Resistance Range(Ω) |
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| 标准品 Std-ype | 小型品Mini-type | |||
| 1/2W | 1WS | 200V | 0.01Ω-200Ω | 0.1Ω-68Ω |
| 1W | 2WS | 300V | 0.01Ω-200Ω | 0.1Ω-100Ω |
| 2W | 3WS | 300V | 0.01Ω-250Ω | 0.1Ω-100Ω |
| 3W | 5WS | 300V | 0.01Ω-250Ω | 0.1Ω-100Ω |
| 5W | 300V | 0.01Ω-300Ω | 0.1Ω-100Ω | |
| 額定電力 Rated power | 尺 寸 Dimensions | ||||
| L | ψD | ψd±0.05 | l±2.0 | ||
| 1/2W | 1WS | 9.0±1.0 | 3.2±0.5 | 0.50 | 26 |
| 1W | 2WS | 11.5±1.0 | 4.5±1.0 | 0.60 | 25 |
| 11.5±1.0 | 4.5±1.0 | 0.60 | 30 | ||
| 2W | 3WS | 15.5±1.0 | 5.0±1.0 | 0.60 | 23 |
| 15.5±1.0 | 5.0±1.0 | 0.60 | 33 | ||
| 3W | 5WS | 17.5±1.5 | 6.0±1.0 | 0.65 | 32 |
| 17.5±1.5 | 6.0±1.0 | 0.65 | 38 | ||
| 5W | 24.5±1.5 | 8.0±1.0 | 0.70 | 35 | |
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Test Item 测试项目 |
Test Condition 测试条件 |
Performance 性能 |
| Temperature Coefficient 温度系数 |
The resistance value at normal temperature and normal temperature added 100°C, calculate per °C resistance value change rate. 在常温及常温+100°C时分别测量电阻值并计算每度的阻值变化。 |
±350ppm/°C (±500PPM/℃＜1Ω) |
|
Short Time overload 短时间过负荷 |
2.5×rated voltage or Max. overload voltage(get the lower) for 5 seconds. 施加2.5倍额定电压或最高负荷电压（取较小者）5秒。 |
R≤±(1%R0+0.05Ω) |
|
Resistance to soldering Heat 耐焊接热 |
Immerge into the 350±10°C tin stove for 2~3seconds. 在350±10°C锡炉中浸入2~3秒。 |
R≤±(1%R0+0.05Ω) |
|
Solderability 可焊性 |
Immerge into the 245±3°C tin stove for 2~3seconds. 在245±3°C锡炉中浸入2~3秒。 |
The soldering area is over 95% 焊锡面积覆盖率达95%以上 |
| Temperature cycling 温度循环 |
At -55°C for 30 min. ,then at+25°C for 10~15°C,then at +125°C for 30 min., then at +25°C for 10~15 min., total 5cycles. 在-55°C时放置30分钟，然后在+25°C时放置10~15分钟，然后再在+275°C时放置30分钟，接着在+25°C时放置10~15分钟，共循环5次。 |
R≤±(1%R0+0.05Ω) |
| Load life in humidity 耐湿负荷寿命 |
Overload rated voltage or Max. working voltage(get the lower) for 1000 hours(1.5hours on and 0.5 hours off) at the 40±2°C and 90~95% relative humidity. 在温度为40±2°C，相对湿度为90~95%的恒温恒湿箱中，施加额定电压或最大工作电压（取较小者）共1000小时（通电0.5小时，断电0.5小时） |
R≤±(5%R0+0.05Ω) |
|
Load life in heat 耐湿负荷寿命 |
Overload rated voltage or Max. working voltage(get the lower) for 1000 hours(1.5hours on and 0.5 hours off) at the 70±2°C. 在温度为70±2°C的恒温恒湿箱中，施加额定电压或最大工作电压（取较小者）共1000小时（通电0.5小时，断电0.5小时） |
R≤±(5%R0+0.05Ω |
