RX20-T 被釉可调线绕电阻
价格:电议
地区:上海
电 话:86 021 57628686
传 真:86 021 57629705

产品名称:RX20-T型被釉绕线可调电阻器
Product name:  RX20-Twire-wound glaze -coating adjustable resistor glaze

型    号:RX20-T
Type:  RX20-T

产品介绍:RX20型电阻器为被釉型绕线电阻器,被釉产品抗污染性强,耐化学气体侵蚀,耐高温,可在恶劣环境中使用。产品结构合理,具有较强的耐久性和耐振动性,安装时使用安装件固定电阻器。
Product introduction: RX20 series resistor is vitreous enameled wire wound resistor, vitreous enameled product has the high ability of resistance to pollution ,chemic gas corroding and high temperature, and can be used in wicked environment. The structure of product is rationalization, and it has the ability of resistance to endurance and vibration, use fixing parts to fix resistor.

用    途:可广泛用于各种电气设备和电子仪器的直流或交流电路中作分流或负载电阻等。
Purpose:  It can be used as shunt and load resistor in DC or AC circuit of electric facility and electron instrument widely.

 

■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±5%(J) , 10Ω>R±10%(K)

 JIS-C-5202  5-1

额定负荷
Power rating load                  

表面温度:≤325℃
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≤±(5%R+0.05Ω)
no evidence of mechanical damage

JIS-C-5202  5-5 10倍 5秒
1000% rated power 5 seconds

绝缘电阻
Insulation resistance

R≥100MΩ  1min

JIS-C-5202  5-6    DC500V

耐电压
Dielectric withstanding voltage

无可见损伤,无飞弧击穿 ΔR≤±(0.1%R+0.05Ω)
no evidence of mechanical damage or insulation breakdown

JIS-C-5202  5-7

电阻温度特性
Temperature coefficient

±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≤±(0.1%R+0.05Ω)
no evidence of mechanical damage

JIS-C-5202  6-3

可焊性
Solderability

新焊锡覆盖率为95%以上
95% coverage min.

JIS-C-5202  6-5 270℃  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
no evidence of mechanical damage

JIS-C-5202  7-3
额定负载30分钟后-55℃温度下15min
After 30minutes rating load , 55℃ 15mintues

耐湿性
Humidity

无可见损伤,标志清晰,ΔR≤±(5%R+0.05Ω),绝缘电阻≥100MΩ
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≤±(5%R±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)

Power
(W)
功率

尺 寸 mm

Resistance Range
阻值范围
(Ω)

L

D

d

H

h

i

k

b

t

d1

8

35±1.5

14±2.0

5.5±0.5

——

28.5±2.5

——

——

3.5±0.8

4.5

2

 

10

41±1.5

   0
31
-5.0

+1.0
20
-2.0

+2.0
6
0

5.1—220

16

45±1.5

17±2.0

8±0.5

0
34
-5.0

31±2.5

+1.0
23
-2.0

5.1—300

20

51±2

+1.0
30
-2.0

5.1—390

25

21±2.5

12±0.6

0
39
-5.0

35±2.5

10—510

30

71±2.2

+1.0
44
-3.0

10—910

40

87±2.2

+1.0
57
-3.0

20—1100

50

91±2.4

29±3.0

20±1.1

   0
47
-5.0

43±3.0

+1.0
60
-3.0

+2.0
7
0

4.5±1

6

2.5

20—1500

75

140±3.2

+1.0
110
-3.0

24—2400

100

170±3.5

+1.0
140
-3.0

24—3300

150

215±4.0

+1.0
185
-3.0

20-4700

200

270±5.0

19±1.1

+1.0
240
-3.0

20-6500

■ 额定功耗曲线  Power Derating Curve

环境温度
environment temperature

0~20℃

20℃以上
above 20℃

功率损耗
power derating

100%

见图
see the fig.