1% Precision FRN Small Size Flameproof Fusible Resistor for Circuit Board Protection
Features
- High power, Small body size.
- It is suitable for protecting circuit boards.
- Noncombustible insulating coating, Solvent Proof and resistant to high temperature.
- Low temperature coefficient (200ppm/℃).
- Uniform in fusing time.
Product Positioning and Core Application
The FRN series is a small size flameproof fusible resistor designed for circuit board protection. It combines resistor functionality with a fusible protection function in a compact body, providing multiple rated power options for different circuit designs.
The FRN series features a 200 ppm/℃ resistance temperature coefficient and a specified fusing time within 60 seconds. With an operating temperature range of −55°C to +155°C, the resistor can be selected according to resistance value, rated power, working voltage and circuit protection requirements.
Electrical and Mechanical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Flameproof Fusible Resistor, Small Type |
| Rated Power | 1/2W, 3/4W, 1W, 2W, 3W |
| Resistance Range | 0.22Ω–100kΩ |
| Resistance Tolerance | ±1% |
| Resistance Temperature Coefficient | 200 ppm/℃ |
| Operating Temperature | −55°C to +155°C |
| Fusing Time | Within 60 seconds |
| Insulation Resistance | 1,000MΩ Min. |
| Maximum Surface Temperature | 200°C Max. |
| Reference Standards | IEC 60115-1, JIS C 5201-1 |
| Coating | Noncombustible insulating coating |
| Packaging | T/R tape & reel, T/B tape in box, Bulk |
Application Areas
Circuit Board Protection
The FRN fusible resistor is suitable for PCB circuits requiring resistor-based circuit protection. Its fusible function enables the component to provide both resistance and protective functionality within the circuit.
Power Supply Circuits
For power supply and related electronic circuits, the FRN series can be selected according to resistance, rated power, working voltage and circuit requirements. Rated power options from 1/2W to 3W support different circuit configurations.
Electronic Equipment
The compact construction of the FRN series makes it suitable for electronic equipment where PCB space and circuit protection requirements must be considered together. Its noncombustible insulating coating, solvent resistance and high-temperature resistance support use under specified operating conditions.
Compact PCB Designs
The FRN series provides a compact fusible resistor solution for PCB designs requiring circuit protection within limited board space. Engineers can select the appropriate resistance and rated power according to the electrical requirements of the application.
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