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RX27-4H 瓷壳线绕电阻器
价格：电议
地区：上海
电 话：86 021 57628686
传 真：86 021 57629705

上海克拉电子有限公司

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产品名称：RX27-4H型瓷壳绕线电阻
Product name: RX27-4H wire wound resistors in ceramic casing

型    号：RX27-4H
Type:    RX27-4H
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，安全性能高，产品具有低电感或无感，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, top 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±5%（J） , 10Ω>R±10%（K）

 JIS-C-5202  5-1

额定负荷
Power rating load                  

表面温度:≤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≤±（2%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≥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

±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
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≤±（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≤±（3%R+0.05Ω），绝缘电阻≥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≤±（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)
RX27-4H  type

Power
功率
（W）

10

12

16

20

24

32

尺 寸 Dimensions
（mm）

L

48.0±1.5

48.0±1.5

63.5±2.0

63.5±2.0

75.0±2.5

90.0±2.5

L1

24

24

24

24

39

39

L2

12

12

12

12

18

18

S

36.0
0
-2.0

34.0
0
-2.0

49.0
0
-3.0

46.5
0
-3.0

56.0
0
-4.0

71.0
0
-4.0

t

0.5

0.5

0.5

0.5

0.5

0.5

G

6±1.5

7±1.5

7±1.5

8.5±1.5

10±2.0

10±2.0

B

9.5±1.0

12.5±1.2

12.5±1.2

16.0±1.2

19.0±1.5

19.0±1.5

B1

5.0

6.0

6.0

7.5

7.5

7.5

B2

6±0.3

6±0.3

6±0.3

6±0.3

8±0.3

8±0.3

B3

8

8

8

10

10

10

H

9.5

12.5±1.2

12.5±1.2

16.0±1.2

19.0±1.5

19.0±1.5

H1

7.0±1.0

8.5±1.0

8.5±1.0

13±1.0

11±1.0

11±1.0

(H2)

17.0±1.5

22.0±1.5

22.0±1.5

30.0±2.0

31.0±1.0

31.0±1.0

H3

0.8

1.0

1.0

1.0

1.0

1.0

H4

2.5

3.0

3.0

3.5

3.5

3.5

d

2.0

2.5

2.5

3.0

3.0

3.0

d1

3.8

3.8

3.8

3.8

4.2

4.2

R

2

2

2

2

3

3

t1

0.6

0.8

0.8

0.8

0.8

0.8

Resistance RangeΩ   
阻值范围

0.33-2.2K

0.5-2.7K

0.75-3.3K

1.0-
3.6K

1.5-
3.9K

1.8-
5.1K

 

■ 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