RX27-3B 瓷壳大功率电阻

产品名称：RX27-3B型瓷壳绕线电阻
Product name: RX27-3B wire wound resistors in ceramic casing

型号：RX27-3B
T*e: RX27-3B
产品介绍：RX27型瓷壳绕线电阻具有结构牢固，机械强度高等优点，由于采用了陶瓷外壳，具有耐压，不燃特性，*性能高，产品具有低电感或无感，精度高，无噪音，温度系数低，稳定性高，高频性能好等特点。
Product introduction: RX27 series wire wound resistors in ceramic casing have many excellences of firm structure, high machine intensity etc. For use the ceramic casing, it has the ability of resistance to voltage, inflammability, high secure, the product has the characteristic of low inductance or no inductance, high precision, no noise, low temperature coefficient, high stability, high frequency etc.

用途：陶瓷绕线电阻主要用于自动化控制系统，变频控制系统，电源设备，*音响等电路中。
Purpose: wire wound resistor in ceramic casing is used in circuit of automatic control system, frequency conversion control system, power supply, * grade acoustics.

■ 电气及机械特性 Electrical and Mechanical specifications

特性 Characteristics	规格 Limits	试验方法 Test methods
			阻值及阻值允许偏差 resistance and resistance tolerance	10Ω≤R&plun;5%（J） , 10Ω>R&plun;10%（K）	JIS-C-5202 5-1
额定负荷 Power rating load	表面*高温度:≤275℃ the highest temperature on the surface	JIS-C-5202 5-4
			短时过负荷 Short-time overload	无可见损伤，ΔR≤&plu*n;（2%R 0.05Ω） no evidence of mechanical damage	JIS-C-5202 5-5 10倍 5秒 1000% rated power 5 seconds
*缘电阻 Insulation resistance	R≥20MΩ 1min	JIS-C-5202 5-6 DC500V
			耐电压 Dielectric withstanding voltage	无可见损伤，无飞弧击穿 no evidence of mechanical damage or insulation breakdown	JIS-C-5202 5-7 AC:1500V 1minute
电阻温度特性 Temperature coefficient	&plu*n;260PPM/℃	JIS-C-5202 5-2 b
			端子强度 Terminal strength	无松动或机械损伤 not loosely and no evidence of mechanical damage	JIS-C-5202 6-1(2)
电阻体强度 Resistor strength	无可见损伤 no evidence of mechanical damage	JIS-C-5202 6-2
			耐振性 Vibration	无可见损伤，ΔR≤&plu*n;（0.1%R 0.05Ω） no evidence of mechanical damage	JIS-C-5202 6-3 1.5mm 10~55 Hz/ 1Minute
可焊性 Solderability	新焊锡覆盖率为75%以上 75% coverage min.	JIS-C-5202 6-5 230℃ 5 seconds

■ 环境特性 Environmental specifications

特性 Characteristics	规格值 Limits	试验方法 Test methods
			耐热性 Heat resistance	除端子外无明显变色和损伤，标志清晰 no deterioration of protective coatings or markings	JIS-C-5202 7-2 350℃ 2hours
热冲击 Thermal shock	无可见机械损伤 ΔR≤&plu*n;（2%R 0.05Ω） no evidence of mechanical damage	JIS-C-5202 7-3 额定负载30分钟后-30℃温度下15min After 30minutes rating load , 55℃ 15mintues
			耐湿性 Humidity	无可见损伤，标志清晰，ΔR≤&plun;（3%R 0.05Ω），缘电阻≥2.5MΩ no deterioration of protective coatings or markings	JIS-C-5202 7-5 DC100 40℃ 95%RH 500hours
耐久性 (额定负载) Humidity Load life	外观无可见损伤，标志清晰，ΔR≤&plun;（5%R&plun;0.05Ω） no evidence of mechanical damage no deterioration of protective coatings or markings	JIS-C-5202 7-10 100%负荷 rated power load 90 min ON 30 min OFF 500hours

■ 规格 Specification
外型、尺寸 Configuration (m/m)
RX27-3B t*e

Power 功率 (W)	尺寸 Dimensions（mm）		Resistance RangeΩ 阻值范围
Power 功率 (W)	L	S	Resistance RangeΩ 阻值范围
12	48&plu*n;1.5	32.5&plu*n;1.0	0.5-2.7K
16	63.5&plu*n;1.5	50&plu*n;1.0	0.75-3.3K

■ 额定功耗曲线 Power Derating Curve

环境温度 environment temperature	0~70℃	70℃以上 above 70℃
功率损耗 power derating	100%	见图 see the fig.

电阻功率对照

环境温度℃ environment temperature	功率对照（Power）
70℃	2	3	5	7	10	12	16	20	24	32
25℃	2	3	5	7	10	15	20	25	30	40

■ 产品分类标准 cl*ified standard
● 命名方式 how to order

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品牌/商标

克拉

型号/规格

RX27-3B

种类

线绕

性能

通用

材料

线绕