Milliohm Resistors HMR Features: 1.Low resistance value, the least can be meet 0.005Ω. 2.Operating ambient temperature : -55°C~+125°C 3.Can be according to customers requirement to forming the special type. 4.Resistance tolerance: ±1%.±5%±10%
Milliohm Resistors HMR
Products |
Milliohm Resistors HMR |
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Features |
1.Low resistance value, the least can be meet 0.005Ω.
2.Operating ambient temperature : -55°C~+125°C 4.Resistance tolerance: ±1%.±5%±10% |
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Performance Test |
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Test Item |
Test Condition |
Performance |
Temperature coefficient |
Test the resistance value at normal temperature and normal temperature added 100°C,calculate per °C resistance value change rate. |
±100ppm/°C |
Resistance to soldering heat |
Immerge into the 350±10°C tin stove for 2~3seconds. |
ΔR≤±0.5%R0 |
Solderability |
Immerge into the 245±3°C tin stove for 2~3seconds. |
The soldering area is over 95%. |
Temperature cycling |
At -55°C for 30min,then at +25°C for 10-15min,then at +125°C for 30min,then at +25°C for 10-15min,total 5cycles. |
ΔR≤±0.5%R0 |
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. |
ΔR≤ ±2% R0 |
Load life in heat |
Overload rated voltage or Max. Working voltage(get the lower) for 1000 hours(1.5hours on and 0.5 hours off) at the 70±2°C. |
ΔR≤ ±2% R0 |