Wire Wound Resistors （KNP/NKNP）-Shenzhen wanliansheng Technology Co., Ltd

绕线电阻器

Wire Wound Resistors （KNP/NKNP）

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%.

Service hotline：
0755-27606841

Product details

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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)
标准品 Std-ype	小型品Mini-type	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)
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
額定電力 Rated power		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
1W	2WS	11.5±1.0	4.5±1.0	0.60	30
2W	3WS	15.5±1.0	5.0±1.0	0.60	23
2W	3WS	15.5±1.0	5.0±1.0	0.60	33
3W	5WS	17.5±1.5	6.0±1.0	0.65	32
3W	5WS	17.5±1.5	6.0±1.0	0.65	38
5W		24.5±1.5	8.0±1.0	0.70	35

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

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