RUE160

Ptc Resettable Fuses Overview

The Littelfuse RUEF160S is a PolySwitch radial-leaded polymer PTC resettable fuse designed for overcurrent protection. It features a maximum voltage rating of 30 VDC and a hold current (Ih) of 1.6 A. The device trips at a current of 3.2 A and has a maximum trip time of 8 seconds. Initial resistance is typically 30 mΩ, rising to a maximum of 110 mΩ after tripping. It supports a maximum fault current of 100 A and operates within a temperature range of -40°C to 85°C. The component utilizes a radial, disc-style through-hole package with a lead spacing of 5.05 mm.

Ptc Resettable Fuses Feature Summary

• Provides reliable overcurrent protection by increasing resistance as it heats during fault conditions
• Resettable functionality allows circuit restoration without manual replacement
• Compatible with high-volume electronics assembly processes

Ptc Resettable Fuses Applications

• Satellite video receivers
• Industrial controls
• Computer motherboards
• USB hubs, ports and peripherals
• Battery packs

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix 'S' in RUEF160S against project requirements, as it denotes the standard radial leaded configuration. Confirm RoHS3 compliance status if restricted substances are mandated. Ensure the 30VDC voltage rating aligns with the system's maximum operating voltage. Validate that the 1.6A hold current meets the circuit's continuous load demands without nuisance tripping.

Ptc Resettable Fuses Selection Notes

Select this component when a low-voltage, moderate-current protection solution is required for PCB-mounted applications. The radial form factor suits automated insertion or wave soldering. Consider the 100A fault current rating to ensure the device can withstand short-circuit events without catastrophic failure. Verify thermal derating requirements if ambient temperatures approach the upper limit of 85°C.

Ptc Resettable Fuses Part Context

The RUEF series represents Littelfuse's comprehensive line of radial-leaded PolySwitch devices. These components are engineered for balance between voltage ratings up to 30V and hold currents up to 9A. They serve as alternatives to single-use fuses, offering cost-effective protection for consumer electronics and industrial equipment where space and assembly efficiency are critical design constraints.

Ptc Resettable Fuses Replacement Considerations

RUEF160 is a parameter-equivalent substitute from Littelfuse Inc.