Products
產品

Cement te resistors (SQM)
水泥型電阻器SQM型

Features
特點

1.Good heat-durability, low temperature coefficient, low ise, high load power, high insulating capacity.
耐熱性好、溫度系數小、噪聲低、負荷功率大、緣性高。
2.Operating ambient temperature 使用環境溫度 :-55℃~+275℃
3.Resistance tolerance阻值誤差: &plun;1%,&plun;2%,&plun;5%,&plun;10%.

Specifications 規格

Part .
RX
（品名）

Dimensions（規格）

Resistance range
(阻值范圍)

W&plun; 1

D&plun; 1

H&plun; 1.5

L&plun; 1

P&plun; 1

d&plun; 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
額定功率
Item項目

2W

3W

5W

7W

10W

Max. working voltage
工作電壓

150V

350V

350V

500V

750V

Dielectric withstanding voltage
耐電壓

1000V
(AC)

1000V
(AC)

1000V
(AC)

1000V
(AC)

1000V
(AC)

Resistance tolerance
阻值

J &plun; 5%

J &plun; 5%

J &plun; 5%

J &plun; 5%

J &plun; 5%

Cement Te Resistor (wire wound)水泥電阻器（繞線）

Characteristics
特性

Specifications 規格

Test Method  測試方法

DC Resistance
直流阻值
JIS-C-5202 5.1

J &plun; 5%

AT 25℃ 溫度為25°C時

Dielectric withstanding voltage
耐電壓
JIS-C-5202 5.7

evidence of flashover mechanical amage, arcing or insulation breakdown.
涂裝不可燒毀，緣不可破壞

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.
電阻兩端導線置于金屬V型槽上依電性表之電壓規格印加60秒。

Insulation Resistance
緣阻
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測試待測體于V形槽導線及其表面涂裝印加60秒。

Thermal Shock
熱沖擊

ΔR≤&plun;(2%R0+0.1Ω)

After application of rated power for 30 minutes, 30 minutes exposure to -30&plun;5℃ ambient temperature.額定電壓印加30分鐘后，于8到12秒以內置于30°C中30分鐘。

Humidity
耐濕性
JIS-C-5202 7.5

ΔR≤&plun;(2%R0+0.1Ω)

Temperature resistance change after 1000 hours exposure in a humidity test chamber controlled at 40&plun;2℃ and 90~95% relative humidity.在溫度為40&plun;2°C，相對濕度為90~95%時置于恒溫箱中不加電壓，連續放置1000小時。

Cement Tr Resistor (metal oxide film)水泥電阻特性（金屬氧化皮膜）

Short time overload
短時間過負荷

ΔR≤&plun;(2%R0+0.05Ω)

Temperature resistance change after the application of a potential of 2.5 times RCVW for 5 seconds.
2.5倍額定電壓測試5秒。

Load Life
室溫壽命
JIS-C-5202 7.10

ΔR≤&plun;(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℃&plun;2℃.在溫度為25℃&plun;2℃下以額定電壓測試1000小時，其中以通電1.5小時，斷電0.5小時進行。

Load Life in Humidity
濕度壽命
JIS-C-5202 7.9

ΔR≤&plun;(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&plun;2℃ and 90~95% relative humidity.
在溫度為25℃&plun;2℃，相對濕度為90~95%時下以額定電壓測試1000小時，其中以通電1.5小時，斷電0.5小時進行。

Solderability
JIS-C-5202 6.5

95% coverage MIN

Test temperature of solder:230&plun;5℃
錫爐溫度：230&plun;5℃
Dwell time in solder:3&plun;0.5 seconds
浸爐時間：3&plun;0.5 seconds

Humidity
耐濕性
JIS-C-5202 7.5

ΔR≤&plun;(5%R0+0.1Ω)

Temperature resistance change after 1000 hours exposure in a humidity test chamber controlled at 40&plun;2℃ and 90~95% relative humidity. 在溫度為40&plun;2°C，相對濕度為90~95%時置于恒溫箱中不加電壓，連續放置1000小時。

Resistance to Soldering Heat
耐熱性

ΔR≤&plun;(1%R0+0.05Ω)

Immerge into the 350&plun;10°C tin stove by3.2~4.8
mm length as the follow form. 浸入錫爐中3.2mm~4.8mm，如下表規定所示：

nflammability
不燃性

nflammable 不可燃燒

Load 5 min according to 5times, 10 times, 16 times rated power and A.C. respectively. 分別施以5,10，16倍額定功率加交流負荷5分鐘。

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