Environmental Characteristics(环境特性测试) |
Item |
Requirement |
Test Method |
5% and Below |
Jumper |
Temperature Coefficient |
As Spec |
At 25℃/-55℃ and 25℃/+125℃,25℃ is the reference temperature |
Resistance (T.C.R.) |
5ppm:At 25℃/-10℃ and 25℃/+85℃,25℃ is the reference temperature |
Short Time Overload |
10Ω-270KΩ:±(0.1%+0.01Ω) |
<15mΩ |
RCWV*2.5 or Max. Overload Voltage whichever is lower for 5 seconds |
<10Ω&>270KΩ:±(0.15%+0.01Ω) |
0102:±(0.05%+0.01Ω) |
5ppm:(0.05%+0.01Ω) |
Insulation Resistance |
≥10G |
Max.Overload Voltage for 1 minute |
Operational Life |
10Ω-270KΩ:±(0.25%+0.01Ω) |
<15mΩ |
Condition D Steady State TA=125℃ at deated power. |
<10Ω&>270KΩ:±(0.5%+0.01Ω) |
Measurement at 24±4 hours after test conclusion. |
0102:±(0.05%+0.01Ω) |
5ppm:70±2℃,RCWV for 1000 hrs with 1.5 hrs “ON”and 0.5 hr “OFF” |
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|
Biased Humidity |
10Ω-270KΩ:±(0.5%+0.01Ω) |
<15mΩ |
1000 hrs 85℃/85%RH 10% of operating power.(≤100V) |
<10Ω&>270KΩ:±(1%+0.01Ω) |
0102:±(2%+0.01Ω) |
High Temperature Exposure |
10Ω-270KΩ:±(0.25%+0.01Ω) |
<15mΩ |
at+125℃/+155℃ for 1000 hrs |
<10Ω&>270KΩ:±(1%+0.01Ω) |
0102:±(1%+0.01Ω) |
Board Flex |
10Ω-270KΩ:±(0.1%+0.01Ω) |
<15mΩ |
Bending once for 60 seconds with 2mm |
<10Ω&>270KΩ:±(0.15%+0.01Ω) |
0102:±(0.05%+0.01Ω) |
Solderabililty |
95% min.coverage |
245±5℃ for 3 seconds |
Resistance to Soldering Heat |
10Ω-270KΩ:±(0.1%+0.01Ω) |
<15mΩ |
260±5℃ for 10 seconds |
<10Ω&>270KΩ:±(0.25%+0.01Ω) |
0102:±(0.25%+0.01Ω) |
5ppm:(0.05%+0.01Ω) |
Voltage Proof |
No breakdown or flashover |
1.42 times Max. Operating Voltage for 1 minute |
Leaching |
Individual leaching area≤5% |
260±5℃ for 30 seconds |
Total leaching area≤10% |
Temperature Cycling |
10Ω-270KΩ:±(0.25%+0.01Ω) |
<15mΩ |
—55℃ to +125℃,1000 cycles |
<10Ω&>270KΩ:±(0.5%+0.01Ω) |
0102:±(1%+0.01Ω) |
Mechanical Shock |
±(0.25%+0.01Ω) |
<15mΩ |
Wave Form:Tolerance for half sine shock pulse. |
Peak value is 100g’s.Normal duration (D) is 6. |
Vibration |
±(0.5%+0.01Ω) |
<15mΩ |
5g’s for 20 min.,12 cycles each of 3 orientations,10-2000 Hz |
ESD |
±(0.5%+0.01Ω) |
<15mΩ |
Human body,0102/0204:2KV; 0204:4KV |
Resistance to solvents |
No visible damage on appearance and marking. |
Add aqueous wash chemical-OKEM Clean or |
equivalent.Do not use banned solvents. |
Terminal strength |
No broken |
Force of 1.8kg for 60 seconds. |
Flammability |
No ignition of the tissue paper or scorching or the |
V-0 or V-1 are acceptable.Electrical test not required. |
pinewood board |
RCWV(Rated Continuous Working voltage)=√(P*R) or Max.Operating Voltage whichever is lower.(额定连续工作电压=√(P*R)或最大,工作电压以较低者为准) |