FEATURES
■ High working Voltage,High stability.
■ Suitable for electronic ballast
DERATING CURVE
For resistors operated at an ambient temperature of 70ºC or above, a power rating shall be derated in accordance with the above derating curve.
DIMENSIONS
|
Type |
Rtated power |
L±1 |
ΦD±0.5 |
φd±0.05 |
Remark |
|
RI40 |
0.25W |
6.8 |
2.4 |
0.5 |
|
|
0.5W |
9.8 |
3.5 |
0.55 |
|
|
|
1W |
11.5 |
4.5 |
0.65 |
|
|
|
2W |
15.5 |
5.2 |
0.75 |
|
RATINGS
|
Type |
Rtated power(W) |
Resistance Range |
Resistance tolerance |
Max. Working |
Max. Overload |
Voltage Proof |
|
RN |
1/4W |
100Ω-820K |
±1% |
750V |
1000V |
500 |
|
1/2W |
1000V |
1500V |
600 |
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|
1W |
1500V |
2000V |
700 |
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|
2W |
2500V |
3000V |
800 |
Rated Ambient Temperature ：+70℃
Operating Temperature Range：-55℃～+155℃
Rated voltage = √Power Rating×Resistance value or Max. working voltage, whichever is lower.
ELECTRICAL PERFORMANCE
|
Test Items |
Performance Requirements |
Test Methods |
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Voltage Proof |
No,breakdown or flashover |
Wrapping foil method、applied voltage see above ratings table、1 min±5S |
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Short Time Overload |
△R≤±（1%R+0.05Ω） |
2.5 times rated voltage or Max. overload voltage , whichever is lower, for 5s. |
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Solderability |
Over 95% of area wire covered with solder |
260±10℃、2±0.5S |
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Robustness of Terminations |
△R≤±（1%R+0.05Ω） |
Tensile:10N、10±1S Bending:2×90° Torsion:2×180° |
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|
Resistance to soldering heat |
△R≤±（1%R+0.05Ω） |
260±10℃、10±1S or 350±5℃ 3.5±0.5S |
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Rapid change temperature |
△R≤±(1%R+0.05Ω) |
-55±3℃、30min; 155±3℃、30min 5 cycles |
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Intermittent overload |
△R≤±(5%R+0.1Ω) |
2.5 times of rated voltage for 1S ON,25S OFF;10000 cycles. |
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Temperature Coefficient |
TCR≤±350PPM/℃ |
Room Temperature +100℃、and keep on 30～40min |
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Endurance |
△R≤±(5%R+0.1Ω) |
70±2℃、1000h，Rated direct voltage 1.5h ON、0.5h OFF cycles. |
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Unexpected overload |
Net-shaped tube dose not catch fire |
16、25 rated power voltage,keep on 5±0.5min； |
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Damp Heat Steady State |
△R≤±(5%R+0.1Ω) |
40±2℃、90～95%RH、56 days. |
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Anti-surge characteristics |
△R≤±（10%R+0.1Ω） |
Discharge test : According to the following table applied voltage， Charging for 4.5 S and discharge for 0.5 S, for 50 times impact test.
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