Metal glaze resistor
High resistance value.small size. endure high temperature. high voltage good performance cnduring moisture and good overload capability
Product Description
Metal glaze resistor
Sample Product
Construction
Features
1. High resistance value.small size. endure high temperature. high voltage good performance cnduring moisture and good overload capability
2. Operating ambient temperature:-55℃~+125℃。
3. Surface is nonflammable. The normal size coats brick red and small size coating is gray white. That add a yellow ring at the behind of the precision color rings to distinguish the resistors types.
4. Resistance tolerance: ±1%, ±2%, ±5%, ±10%
Dimensions and Voltage Performance
|
Power |
Resistance range |
Dimensions（mm） |
Max. working voltage |
Max. overload voltage |
Max. Pulse voltage |
Max.insulation voltage |
|||
|
L±1 |
D±0.5 |
d±0.05 |
H±1 |
||||||
|
1/4W |
1K~75M |
6.0 |
2.3 |
0.45 |
26.0 |
350V |
700V |
700V |
500V |
|
1/2WS |
1K~75M |
6.0 |
2.3 |
0.45 |
26.0 |
350V |
700V |
700V |
500V |
|
1/2W |
1K~75M |
9.0 |
3.2 |
0.55 |
26.0 |
500V |
1000V |
1000V |
750V |
|
1WS |
1K~75M |
9.0 |
3.2 |
0.55 |
26.0 |
500V |
1000V |
1000V |
750V |
|
1W |
1K~75M |
11.0 |
4.5 |
0.65 |
26.0 |
700V |
1400V |
1400V |
1000V |
|
2WS |
1K~75M |
11.0 |
4.5 |
0.65 |
26.0 |
700V |
1400V |
1400V |
1000V |
|
2W |
1K~75M |
15.0 |
5.0 |
0.70 |
26.0 |
750V |
1500V |
1500V |
1100V |
|
3WS |
1K~75M |
15.0 |
5.0 |
0.70 |
26.0 |
750V |
1500V |
1500V |
1100V |
|
3W |
1K~75M |
24.0 |
8.0 |
0.70 |
26.0 |
800V |
1600V |
1600V |
1200V |
|
5WS |
1K~75M |
24.0 |
8.0 |
0.70 |
26.0 |
800V |
1600V |
1600V |
1200V |
Rated Power Derating Curve
Performance Test
|
Test item |
Test Condition |
Performance |
|
Temperature Coefficient |
Test the resistance value at normal temperature and normal temperature added 100'C. calculate per℃ resistance value change rate. |
±500ppm/℃ |
|
Short time overload |
2.5 X rated voltage or Max. overload voltage (get the lower)for 5 seconds |
△R<±(2%R+0.05Ω) |
|
Pulse overload |
At 4xrated voltage or max. pulse overload voltage (get the Lower) cycle 10000±200 times (second on, seconds off) |
△R≤±(1%R+0.05Ω) |
|
Resistance to soldering hent |
Immerge into the 350±10℃ tin stove for 2-3seeonds |
△R≤±(1%R+0.05Ω) |
|
Solderability |
Immerge into the 245±3 tin stove for 2-3seeonds |
The soldering area in over95% |
|
Temperature cycling |
At-55℃ for 30 min. than at+25'C for 10-15min. then at +275Cfor min then at+25C for 10-15min, total 5cycles. |
△R≤±(1%R+0.05Ω) |
|
Load life in humidity |
Overload rated voltage or Max. working voltage (get the lower）for 1000 hour l1.5 hour on and half-hour off at the 40 ±2℃ and 90-95% relative humidity |
△R≤±(5%R+0.05Ω) |
|
Load life in heat |
Overload rated voltage or Max, working voltage(get the lower) for 1000 hour (1.5hour on and halt-hour off）at the 70±2℃ |
△R≤±(5%R+0.05Ω) |
|
Nonflammability |
Respectively load AC voltage by 5, 10, 16times rated power for 5 minutes |
No visible flame |
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