FRX050-90F

Ptc Resettable Fuses Overview

The FRX050-90F is a radial leaded PTC resettable fuse from the FRX90V series manufactured by RFE/Fuzetec. It features a maximum voltage rating of 72V with an interruption voltage of 90V. The device has a hold current (Ih) of 500 mA and a trip current (It) of 1 A. Typical resistance values include a maximum initial resistance of 0.3 ohms and a maximum post-trip resistance of 0.6 ohms. The component utilizes tin-plated copper leads with 24 AWG wire gauge.

Ptc Resettable Fuses Feature Summary

• Solid-state protection mechanism providing automatic reset capability after fault clearance
• Radial leaded construction designed for through-hole mounting applications
• RoHS compliant and lead-free manufacturing process

Ptc Resettable Fuses Applications

• Telecom equipment circuit protection
• Wide variety of electronic equipment safeguarding
• Overcurrent protection in consumer electronics

Ptc Resettable Fuses Procurement Notes

Verify that the specific part number matches the required FRX90V series specifications, particularly the 500 mA hold current and 90V interruption voltage ratings. Confirm the manufacturer origin is RFE or Fuzetec to ensure compliance with RoHS standards and tin-plated copper lead requirements. Cross-reference datasheet parameters against application thermal limits before procurement.

Ptc Resettable Fuses Selection Notes

Select this component when a low hold current of 500 mA is required for sensitive circuits operating at voltages up to 72V. The radial package suits PCB layouts requiring through-hole integration. Ensure the expected fault current does not exceed the device's maximum trip characteristics and that ambient temperature conditions remain within the specified operational range for reliable performance.

Ptc Resettable Fuses Part Context

This part belongs to the FRX Series of radial leaded PPTC fuses, specifically the FRX90V sub-series characterized by its 90V interruption voltage rating. The series includes variants with different hold currents ranging from 50 mA to 900 mA, sharing similar physical dimensions and mounting styles while differing in electrical thresholds.

Ptc Resettable Fuses Replacement Considerations

Compatible substitutes include other FRX90V series parts such as FRX055-90F, FRX065-90F, FRX075-90F, and FRX090-90F, which share the same package and voltage ratings but offer different hold currents.