RS90-055

Ptc Resettable Fuses Overview

The OptiFuse RS90-055 is a polymeric resettable fuse (PTC) from the RS90 series, designed for through-hole radial lead mounting. It features a hold current of 550 mA and an interrupt rating of 40 A at 90 V DC. The device has a maximum voltage rating of 90 VDC and operates within a temperature range of -40°C to 85°C. Key electrical parameters include a minimum resistance of 310 mΩ and a maximum resistance of 720 mΩ. The component utilizes a disc body style with a lead spacing of 5.10 mm.

Ptc Resettable Fuses Feature Summary

• Polymeric PTC technology provides automatic reset capability after fault clearance
• Radial lead construction facilitates through-hole PCB mounting
• High interrupt rating ensures safety during overcurrent events

Ptc Resettable Fuses Applications

• Electronics applications requiring frequent overcurrent protection
• Circuits demanding constant uptime without manual fuse replacement
• Consumer electronics power input protection

Ptc Resettable Fuses Procurement Notes

Verify the specific datasheet version when sourcing, as manufacturer specifications may undergo updates. Confirm that the procurement channel provides genuine OptiFuse components to ensure compliance with RoHS standards and electrical ratings. Cross-reference the part number RS90-055 against official distributor catalogs to validate availability and authenticity before finalizing orders.

Ptc Resettable Fuses Selection Notes

Select this component for circuits requiring a 550 mA hold current and 90 VDC operating voltage. Ensure the application environment stays within the -40°C to 85°C temperature range. Consider the 40 A interrupt rating for potential fault currents. Verify that the radial lead spacing of 5.10 mm fits the target PCB layout constraints.

Ptc Resettable Fuses Part Context

The RS90-055 belongs to the OptiFuse RS90 series of polymeric resettable fuses. This series covers hold currents ranging from 100 mA to 3.75 A, all sharing a common 90 VDC voltage rating. The RS90 line is characterized by its radial lead package and through-hole compatibility, offering a robust solution for circuit protection in various electronic devices.

Ptc Resettable Fuses Replacement Considerations

Consult official substitution guides for compatible parts within the RS90 series or equivalent manufacturers. Verify that any substitute matches the 550 mA hold current, 90 VDC rating, and radial lead form factor to maintain circuit integrity.