SQM立式水泥电阻器

Products
产品

Cement t*e resistors (SQM)
水泥型电阻器SQM型

Features
特点

1.Good heat-durability, low temperature coefficient, low noise, high load power, high insulating capacity.
耐热性好、温度系数小、噪声低、负荷功率大、*缘性高。
2.Operating ambient temperature 使用环境温度 :-55℃~ 275℃
3.Resistance tolerance阻值误差: &plu*n;1%,&plu*n;2%,&plu*n;5%,&plu*n;10%.

Specifications 规格

Part *.
RX
（品名）

Dimensions（规格）

Resistance range
(阻值范围)

W&plu*n; 1

D&plu*n; 1

H&plu*n; 1.5

L&plu*n; 1

P&plu*n; 1

d&plu*n; 0.05

KN

MO

2W

11

7

20.5

4

4

0.8

0.1~270

271~10K

3W

12

8

25

4

4

0.8

0.1~1K

1K1~50K

5W

13

10

25.5

4

4

0.8

0.1~1K

1K1~50K

7W

13

10

39

4

4

0.8

0.1~1K

1K1~47K

10W

13

10

51

4

4

0.8

0.1~1K

1K1~47K

Power rated
额定功率
Item项目

2W

3W

5W

7W

10W

Max. working voltage
*大工作电压

150V

350V

350V

500V

750V

Dielectric withstanding voltage
耐电压

1000V
(AC)

1000V
(AC)

1000V
(AC)

1000V
(AC)

1000V
(AC)

Resistance tolerance
阻值精度

J &plu*n; 5%

J &plu*n; 5%

J &plu*n; 5%

J &plu*n; 5%

J &plu*n; 5%

Cement T*e Resistor (wire wound)水泥电阻器（绕线）

Characteristics
特性

Specifications 规格

Test Method  测试方法

DC Resistance
直流阻*值
JIS-C-5202 5.1

J &plu*n; 5%

AT 25℃ 温度为25°C时

Dielectric withstanding voltage
耐电压
JIS-C-5202 5.7

No evidence of flashover mechanical amage, arcing or insulation breakdown.
涂装不可烧毁，*缘不可破坏

Resistance shall be clamped with a conductive material which conforms to resistors surface so that 90o of the outer periphery is contacted a potential of 1000V AC shall be applied for 60 seconds.
电阻两端导线置于金属V型槽上依电性表之电压规格印加60秒。

Insulation Resistance
*缘阻*
JIS-C-5202 5.6

1000MΩ     MIN

Withstanding test and shall be measured at DC 500V. Resistor shall be prepared AC same method of dielectric.
以DC500V测试待测体于V形槽*导线及其表面涂装印加60秒。

Thermal Shock
热冲击

ΔR≤&plu*n;(2%R0 0.1Ω)

After application of rated power for 30 minutes, 30 minutes exposure to -30&plu*n;5℃ ambient temperature.额定电压印加30分钟后，于8到12秒以内置于30°C中30分钟。

Humidity
耐湿性
JIS-C-5202 7.5

ΔR≤&plu*n;(2%R0 0.1Ω)

Temperature resistance change after 1000 hours exposure in a humidity test chamber controlled at 40&plu*n;2℃ and 90~95% relative humidity.在温度为40&plu*n;2°C，相对湿度为90~95%时置于恒温箱中不加电压，连续放置1000小时。

Cement T*r Resistor (metal oxide film)水泥电阻特性（金属氧化皮膜）

Short time overload
短时间过负荷

ΔR≤&plu*n;(2%R0 0.05Ω)

Temperature resistance change after the application of a potential of 2.5 times RCVW for 5 seconds.
2.5倍额定电压测试5秒。

Load Life
室温寿命
JIS-C-5202 7.10

ΔR≤&plu*n;(5%R0 0.1Ω)

Permanent resistance change after 1000 hours operating at RCWV, with duty cycle of 1.5 hours on and 0.5 hours off at 25℃&plu*n;2℃.在温度为25℃&plu*n;2℃下以额定电压测试1000小时，其中以通电1.5小时，断电0.5小时进行。

Load Life in Humidity
湿度寿命
JIS-C-5202 7.9

ΔR≤&plu*n;(5%R0 0.1Ω)

Temperature resistance change after 1000 hours(1.5hours on and 0.5 hours off) at RCVW in a humidity chamber controlled at 40&plu*n;2℃ and 90~95% relative humidity.
在温度为25℃&plu*n;2℃，相对湿度为90~95%时下以额定电压测试1000小时，其中以通电1.5小时，断电0.5小时进行。

Solderability
JIS-C-5202 6.5

95% coverage MIN

Test temperature of solder:230&plu*n;5℃
锡炉温度：230&plu*n;5℃
Dwell time in solder:3&plu*n;0.5 seconds
浸炉时间：3&plu*n;0.5 seconds

Humidity
耐湿性
JIS-C-5202 7.5

ΔR≤&plu*n;(5%R0 0.1Ω)

Temperature resistance change after 1000 hours exposure in a humidity test chamber controlled at 40&plu*n;2℃ and 90~95% relative humidity. 在温度为40&plu*n;2°C，相对湿度为90~95%时置于恒温箱中不加电压，连续放置1000小时。

Resistance to Soldering Heat
耐热性

ΔR≤&plu*n;(1%R0 0.05Ω)

Immerge into the 350&plu*n;10°C tin stove by3.2~4.8
mm length as the follow form. 浸入锡炉中3.2mm~4.8mm，如下表规定所示：

Nonflammability
不燃性

Nonflammable 不可燃烧

Load 5 min according to 5times, 10 times, 16 times rated power and A.C. respectively. 分别施以5,10，16倍额定功率加交流负荷5分钟。

Notes备注

More details, please feel free to contact us.更多细节，请联系我们。