Products
产品

Glaze High Power Ceramic Tube Resistors (BHR)
被釉功率瓷管电阻器

Features
特点

1. Surface glazed, won’t be easily polluted or eroded by chemistry gas, high insulating capacity, can resist humidity and heat well, can be used in the atrocious environment.

电阻表面被釉，抗污染性强，耐化学气体侵蚀、绝缘度高，耐湿耐温，能在恶劣环境下使用。

1. Good overload and heat durability capacity, the useful time is longer than the others.

高负荷，耐高温，使用寿命相对其他产品较长。
3.  Resistance tolerance范围: ±5%, ±10%.

Test Item
测试项目

Test Condition
测试条件

Performance
性能

Temperature coefficient
温度系数

The resistance value at normal temperature and normal temperature added 100°C,calculate per °C resistance value change rate。在常温以及常温+100°C时分别测量阻值并计算每度的阻值变化。

±300ppm/°C

Short time overload
短时间过负荷

According 10 times rated power to account the voltage or max. overload voltage(get the lower) for 5 seconds.施加10倍额定功率的电压或负荷电压（取较小者）5秒。

R≤±(2%R0+0.05Ω)

Resistance to solderling heat  耐焊接热

Immerge into the 350±10°C tin stove for 2~3seconds.
在350±10°C锡炉中浸入2~3秒。

R≤±(1%R0+0.05Ω)

Solderability
可焊性

Immerge into the 245±3°C tin stove for 2~3seconds.
在245±3°C锡炉中浸入2~3秒。

The soldering area is over 95%

Temperature cycling
温度循环

At -55°C for 30min,then at +25°C for 10-15min,then at +275°C for 30min,then at +25°C for 10-15min,total 5cycles.在-55°C时放置30分钟，然后在+25°C时放置10~15分钟，然后再在+275°C时放置30分钟，接着在+25°C时放置10~15分钟，共循环5次。

R≤±(1%R0+0.05Ω)

Load life in humidity
耐湿负荷寿命

Overload rated voltage or Max. working voltage(get the lower )for 1000 hours(1.5hours on and half hour off)at the 40±2°C and 90~95% relative humidity.在温度为40±2°C，相对湿度为90~95%的恒温恒湿箱中，施加额定电压或工作电压（取较小者）共1000小时（通电0.5小时，断电0.5小时）

R≤±(5%R0+0.05Ω)

Load life in heat
耐温负荷寿命

Overload rated voltage or Max. working voltage(get the lower )for 1000 hours(1.5hours on and half hour off)at the 70±2°C. 在温度为70±2°C的恒温恒湿箱中，施加额定电压或工作电压（取较小者）共1000小时（通电0.5小时，断电0.5小时）

R≤±(5%R0+0.05Ω)

Nonflammability
不燃性

Respectively load AC voltage by 5,10,15 times rated power for 5 minutes.分别按5、10、16倍功率加交流负荷5分钟。

No visible flame
不可有明显火焰

Part No.
料号

Power
功率

ResistanceRange
阻值范围

 Dimensions (mm)
外型尺寸

Fixed Type
固定型

Adjustable
Type
可调型

L±2

D±2

d±1

H±2

h±2

L1

+2
-1

K±2

b±1

t±1

d1±0.5

BHR08B

8W

5R1-3K3

  --

35

14

5.5

--

28.5

 --

--

3.5

4.5

6

2

2.5

BHR10B

10W

5R1-10K

5R1-200R

41

31

20

6

BHR16B

16W

5R1-15K

5R1-220R

45

17

8

34

31

23

BHR16B

20W

5R1-20K

5R1-430R

51

30

BHR25B

25W

10R-24K

10R-510R

51

21

12

39

35

BHR30B

30W

10R-30K

10R-1K

71

44

BHR40B

40W

20R-51K

20R-1K2

87

57

BHR50B

50W

20R-51K

20R-1K5

91

29

20

47

43

60

7

4.5

BHR75B

75W

24R-56K

24R-2K

140

110

BHR100

100W

24R-62K

24R-2K7

170

140

BHR150

150W

20R-91K

20R-4K3

215

185

Note：We can according customer’s requirements to customize the specification and dimension ,also can product multiple resistance value of one ceramic tube or cancel the fixed plank .
备注：具体规格尺寸可以根据客户的需求制作，同时也可以制作一管多个阻值，也可按照客户要求取消固定支架。