16R185BPR

Ptc Resettable Fuses Overview

The Littelfuse Inc. 16R185BPR is a PolySwitch radial-leaded PPTC resettable fuse designed for circuit protection. It features a maximum voltage rating of 16 VDC and a hold current of 1.85 A, with a trip current of 3.7 A. The device has a maximum fault current rating of 40 A and an initial resistance of 90 mOhms. It operates within a temperature range of -40°C to +85°C and utilizes a radial lead form factor with a 5.1 mm lead spacing.

Ptc Resettable Fuses Feature Summary

• Provides reliable overcurrent protection through polymer PTC technology that increases resistance upon heating
• Features a compact radial-leaded package suitable for PCB mounting applications
• Offers automatic reset functionality after the fault condition is removed

Ptc Resettable Fuses Applications

• Protection of USB ports and peripheral connections
• Overcurrent safeguarding in telecommunications equipment
• Circuit protection for consumer electronics wiring harnesses

Ptc Resettable Fuses Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm the part number suffix matches the required lead spacing and packaging format. Ensure compliance with RoHS directives if applicable to your assembly requirements. Cross-reference the specific revision level to guarantee electrical parameter consistency.

Ptc Resettable Fuses Selection Notes

Select this component when a 16V system requires a 1.85A hold current with radial leads. Verify that the 3.7A trip threshold aligns with the protected circuit's surge tolerance. Ensure the PCB layout accommodates the 5.1mm lead spacing and physical dimensions. Consider the power dissipation limits under continuous operating conditions.

Ptc Resettable Fuses Part Context

This device belongs to the USBR series of PolySwitch resettable fuses from Littelfuse. These components are engineered specifically for low-voltage digital interfaces and data lines. The series provides a cost-effective alternative to traditional fusible links while maintaining safety standards for portable and desktop electronic devices.

Ptc Resettable Fuses Replacement Considerations

Publicly confirmed substitute part numbers include RUSB185-2 and RUEF185S. Verify that replacement options match the 16V voltage rating and 1.85A hold current. Ensure the lead spacing and package dimensions are compatible with existing PCB footprints before substitution.