FRX185-90F

Ptc Resettable Fuses Overview

The FRX185-90F is a resettable PTC fuse from the FRX90 series, designed for through-hole radial disc mounting. It features a maximum operating voltage of 72V with an internal rating of 90V. The device has a hold current (Ih) of 1.85A and a trip current (It) of 3.7A. Typical trip time is 12.4 seconds at rated current. It operates within a temperature range of -40°C to 85°C, with a lead spacing of 0.201 inches (5.10mm).

Ptc Resettable Fuses Feature Summary

• Solid-state radial leaded construction for reliable overcurrent protection.
• Low hold current capability optimized for sensitive circuit applications.
• Designed specifically for up to 90 Vdc systems.

Ptc Resettable Fuses Applications

• Automotive electronics circuits
• Battery pack protection systems
• General industrial control boards

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix '90F' corresponds to the 90V internal voltage rating and 1.85A hold current specifications. Confirm that the radial disc package dimensions match the target PCB layout requirements. Ensure the manufacturer source is recognized as Fuzetec Technology Co., Ltd. or authorized distributor RFE International, Inc. to guarantee component authenticity and datasheet accuracy.

Ptc Resettable Fuses Selection Notes

Select this component when a through-hole solution is required for low-voltage DC protection. The 1.85A hold current suits moderate load applications. Verify that the 72V maximum working voltage aligns with the system's peak operational levels. Consider the 12.4-second typical trip time against the fault tolerance requirements of the protected circuitry.

Ptc Resettable Fuses Part Context

This part belongs to the FRX90 series of radial leaded PPTC fuses manufactured by Fuzetec Technology Co., Ltd. The series is characterized by solid-state technology and low hold currents, making it suitable for automotive and consumer electronics where space and reliability are critical factors in overcurrent protection design.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include other FRX90 series variants such as FRX135-90F or FRX250-90F if current ratings differ. Cross-reference pin spacing and thermal characteristics when replacing with components from other manufacturers to ensure mechanical fit and electrical performance parity.