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Cement Resistors Supplier
Since our establishment in 1971, Thunder Components Ltd. has changed a lot in industrial and domestic requirements and has adapted to fulfil the needs of every client. As the cement resistors industry matured and diversified, Thunder Components Ltd. focused on customer needs and continually developed new products. We have highly experienced and trained workers to make the cement resistor according to the specifications of the clients. We will always offer you a warm welcome and a top quality environment in business.
FSQ Series
Fusible Wirewound Cement Resistors
FSQ Fusible Wirewound Cement Resistors, Flame Proof.
It is suitable for protecting circuit boards.
Small in size.
Noncombustible insulating coating. Solvent proof and resistant to high temperature.
Low T/C.
Unfirming in Fusing Time.
Charcateristics :
| TYPE | Rated wattage |
Dimension(mm) | Resistance Range(Ω)L |
Dielectric Withstanding VoltageD |
|||||
|---|---|---|---|---|---|---|---|---|---|
| D±1 | L±1.5 | H±0.5 | W±0.5 | C±3 | d±0.5 | ||||
| FKN | 1W | 4.0 | 9 | - | 28 | 28 | 0.65 | 0.1~20 | 350V |
| 2W | 5.0 | 11 | - | 28 | 28 | 0.8 | 0.1~100 | 500V | |
| 3W | 5.5 | 13 | - | 38 | 38 | 0.8 | 0.1~100 | 500V | |
| 5W | 6.5 | 19 | - | 38 | 38 | 0.8 | 0.1~200 | 500V | |
| FSQ | 2W | - | 18 | 7 | 23 | 23 | 0.65 | 0.1~10k | 1000V |
| 3W | - | 22 | 8 | 35 | 35 | 0.8 | 0.1~33K | 1000V | |
| 5W | - | 22 | 9 | 35 | 35 | 0.8 | 0.1~50K | 1000V | |
| 7W | - | 35 | 9 | 35 | 35 | 0.8 | 0.1~50K | 1000V | |
| 10W | - | 48 | 9 | 35 | 35 | 0.8 | 0.1~50K | 1000V | |
ELECTRICAL PERFORMANCE
| Test Items | Condition | Spec. | Test Method JIS-C-5202 |
|---|---|---|---|
| Fusing Characteristics | 16 times 0f rated wattage ，fusing time is within 60 sec. |
for relerence only | |
| Operating Temp. | -55°C~200.°C(FKN) -55°C~150°C(FSQ) |
- | - |
| Resistance Temp. Coff. | -30°C~150°C | 300ppm/°C | 5.2 |
| Short Time Overload | 2.5 times of rated voltage for 5 sec. |
2% | 5.5 |
| Insulation Resistance | 500Vmegger | 1,000mΩ | 5.6 |
| Temp.Cycie | -30°C~85°C for 5 cycles. | 1% | 7.4 |
| Load Life | 70°C on-off cycle 1,000hrs. | 5% | 7.10 |
| Moisture-proof Load Life |
40°C 95%RH on-off cycle 1,000hrs. |
5% | 7.9 |
| Resistance to Soldering Heat |
270°C±5/10 1sec | 1% | 6.4 |
| Nonflammablity | 16times of rated wattage for 5min. |
not flamed | 7.12 |
Founded in 1971, Thunder Components Ltd. started with the development and manufacture of cement resistors. With the continuous effort over the years, our company has accumulated industry’s best R&D capabilities and became one of the biggest and highest quality manufacturers. Thunder Components Ltd. achieved a market leader position in the cement resistor and thereby strengthens the company’s position on the electronic supplies market. Apart from this, the offered products are highly demanded in the market for their lightweight, attractive design, low maintenance, easy to operate, optimum performance, reliability and durability.