ASIA AKITA ELECTRONIC TECHNOLOGY(SHENZHEN)CO.,LTD
| Dielectric Withstanding Voltage | AC 1000V for 1 minutes (No evidence of mechanical damage) |
| Supply Ability | Depending on the specific circumstances, it generally takes 5-7 work days to complete |
| Resistance Temp. Coeff. | ±300 ppm/°C ; <1Ω : ±600 ppm/°C |
| Terminal Strength | 4.5kg ( No evidence of mechanical damage ) |
| Payment Terms | T/T |
| Short-Term Overload | 10 times(power film : 5 times) of rated wattage for 5 seconds. ( ±2% ) |
| Delivery Time | 7-10 work days |
| Resistance Tolerance | ±5% ( J ) |
| Packaging Details | T/B |
| Resistance Value | 0.1~50KΩ |
| Place of Origin | China |
| Model Number | SQF |
| Brand Name | TYOHM |
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Product Specification
| Dielectric Withstanding Voltage | AC 1000V for 1 minutes (No evidence of mechanical damage) | Supply Ability | Depending on the specific circumstances, it generally takes 5-7 work days to complete |
| Resistance Temp. Coeff. | ±300 ppm/°C ; <1Ω : ±600 ppm/°C | Terminal Strength | 4.5kg ( No evidence of mechanical damage ) |
| Payment Terms | T/T | Short-Term Overload | 10 times(power film : 5 times) of rated wattage for 5 seconds. ( ±2% ) |
| Delivery Time | 7-10 work days | Resistance Tolerance | ±5% ( J ) |
| Packaging Details | T/B | Resistance Value | 0.1~50KΩ |
| Place of Origin | China | Model Number | SQF |
| Brand Name | TYOHM |
The SQF series thermal fuse cement resistor is a wire wound resistor designed for circuit protection. It uses a flameproof ceramic case and combines wire winding construction with a thermal fuse function to provide protection when the circuit reaches specified overload or thermal conditions.
For industrial electronics and circuit board applications that require both resistance and thermal fuse protection, the SQF series can be used as a flameproof fusible resistor. The product specifications also identify anti-surge characteristics and accurate fusibility, together with defined insulation and environmental test conditions.
| Parameter | SQF Series Specification |
| Product Type | Thermal Fuse Cement Resistor |
| Series | SQF7 |
| Construction | Flameproof ceramic case |
| Process | Wire Winding |
| Resistance Range | 0.1Ω–50kΩ; selected models 0.8Ω–50kΩ |
| Resistance Tolerance | ±5% (J) |
| Rated Current | 3A / 5A / 10A |
| Rated Functioning Temperature | 132°C / 145°C / 185°C |
| Temperature Coefficient | 300 ppm/°C at 1Ω; 600 ppm/°C |
| Insulation Resistance | 1,000MΩ minimum at DC500V |
| Dielectric Withstanding Voltage | AC 1000V / 1 minute |
| Terminal Strength | 4.5 kg |
| Short-Time Overload | 10 times rated wattage / 5 seconds; 5 times for Power Film |
| Moisture-Proof Load Life | 40°C, 95% RH, 500 hours |
| Load Life | 70°C, 1000 hours |
| Reference Standards | IEC 60115-1 / JIS C 5201-1 |
| Compliance | RoHS compliant |
The SQF series can be evaluated through defined electrical and environmental test conditions rather than unsupported performance claims.
These test conditions are specified under the product's electrical, mechanical and environmental characteristics.
The SQF series is designed for circuit board protection. It can be positioned in a protection branch where both resistance and thermal fuse functionality are required, providing a combined resistor and thermal protection function. The product documentation specifically identifies circuit board protection as an application.
In industrial electronic equipment, the SQF series can function as an overcurrent protection resistor in circuit sections requiring resistance and thermal protection. Rated current options of 3A, 5A and 10A, together with rated functioning temperatures of 132°C, 145°C and 185°C, provide different configuration options for circuit design.
In power and control circuits requiring circuit protection, the wire wound thermal fuse resistor combines resistance with thermal fuse functionality. Its short-time overload test is specified at 10 times rated wattage for 5 seconds, providing a measurable reference for component selection.
The SQF series is specified with excellent anti-surge characteristics and accurate fusibility. It can therefore be considered for circuit protection positions where these characteristics are required. For European B2B electronic component sourcing, the product can be positioned as a fusible wire wound resistor for circuit protection applications.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
1992
Total Annual:
$50M-$54M
Employee Number:
700~720
Ecer Certification：
Verified Supplier
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