|
Item |
Requirement |
Test Method |
| Temperature Coefficient of Resistance(T.C.R.) |
As Spec. |
﹢25/—55/﹢25/﹢125℃ |
| Short Time Overload |
±(1.0%﹢0.05Ω) |
V=√(P*R)*2.5, 5 seconds
| Type |
0207 |
0309 |
| Power rating |
1/2W |
1W |
| Volatage Max |
200V |
250V | |
|
|
|
|
|
|
| Resistance to Soldering Heat |
±(1.0%﹢0.05Ω) |
260±5℃ for 10±1 seconds |
| Solderability |
95% min.coverage |
245±5℃ for 3±0.5 seconds |
| Thermal Shock Test |
±(2.0%﹢0.05Ω) |
5 cycles for -55℃ 30minute 155℃ 30minute |
| Load Life Test |
±(5.0%﹢0.05Ω) |
70±2℃,DC 1.5 hrs “ON”and 0.5 hrs “OFF”,applied continuously for 1000±48 hrs |
| Humidity Resistance |
±(5.0%﹢0.05Ω) |
40±2℃,90 ～ 95% R.H.,for 1000 hrs with 105 hrs“ON”and 0.5 hr“OFF” |
| Resistance to Solvent |
Epoxy insulation coating can not be peeled |
3 circles,each circle takes 1 min. |
| Anti Surge Characteristics |
±(5%﹢0.05Ω) |
Discharge Test: |
| 1/2W=3KV |
1W=4KV
|
| 1000pF capacitor Discharge Pulse 50 time.(1 pluse / 5 sec.max) |
