Glaze High Power Ceramic Tube Resistors BHR Features: 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. 2.Good overload and heat durability capacity, the useful time is longer than the others. 3. Resistance tolerance: ±5%, ±10%.
Glaze High Power Ceramic Tube Resistors BHR
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Products |
Glaze High Power Ceramic Tube Resistors BHR |
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Features |
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. 2.Good overload and heat durability capacity, the useful time is longer than the others. 3. Resistance tolerance: ±5%, ±10%. |
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Test Item |
Test Condition |
Performance |
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Temperature coefficient |
The resistance value at normal temperature and normal temperature added 100°C,calculate per °C resistance value change rate。 |
±300ppm/°C |
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Short time overload |
According 10 times rated power to account the voltage or max. overload voltage(get the lower) for 5 seconds. |
R≤±(2%R0+0.05Ω) |
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Resistance to solderling heat |
Immerge into the 350±10°C tin stove for 2~3seconds. |
R≤±(1%R0+0.05Ω) |
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Solderability |
Immerge into the 245±3°C tin stove for 2~3seconds. |
The soldering area is over 95% |
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Temperature cycling |
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. |
R≤±(1%R0+0.05Ω) |
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Load life in humidity |
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. |
R≤±(5%R0+0.05Ω) |
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Load life in heat |
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. |
R≤±(5%R0+0.05Ω) |
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Nonflammability |
Respectively load AC voltage by 5,10,15 times rated power for 5 minutes. |
No visible flame |
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Part No. |
Power |
Resistance Range |
Dimensions (mm) |
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Fixed Type |
Adjustable |
L±2 |
D±2 |
d±1 |
H±2 |
h±2 |
L1 |
+2 |
K±2 |
b±1 |
t±1 |
d1±0.5 |
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BHR08B |
8W |
5R1-3K3 |
-- |
35 |
14 |
5.5 |
-- |
28.5 |
-- |
-- |
3.5 |
4.5
6 |
2
2.5 |
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BHR10B |
10W |
5R1-10K |
5R1-200R |
41 |
31 |
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20 |
6 |
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BHR16B |
16W |
5R1-15K |
5R1-220R |
45 |
17 |
8 |
34 |
31 |
23 |
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BHR16B |
20W |
5R1-20K |
5R1-430R |
51 |
30 |
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BHR25B |
25W |
10R-24K |
10R-510R |
51 |
21 |
12 |
39 |
35 |
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BHR30B |
30W |
10R-30K |
10R-1K |
71 |
44 |
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BHR40B |
40W |
20R-51K |
20R-1K2 |
87 |
57 |
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BHR50B |
50W |
20R-51K |
20R-1K5 |
91 |
29 |
20 |
47 |
43 |
60 |
7 |
4.5 |
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BHR75B |
75W |
24R-56K |
24R-2K |
140 |
110 |
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BHR100 |
100W |
24R-62K |
24R-2K7 |
170 |
140 |
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BHR150 |
150W |
20R-91K |
20R-4K3 |
215 |
185 |
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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 . |
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