TRF600-150-RC

Ptc Resettable Fuses Overview

The Littelfuse TRF600-150-RC is a PolySwitch resettable PTC fuse designed for overcurrent protection. It features a holding current of 150 mA and a trip current of 300 mA, with a maximum voltage rating of 250 VDC (600V interrupt). The device has a minimum initial resistance of 6 Ohms and a maximum post-trip resistance of 17 Ohms. It supports a maximum fault current of 3 A and operates within a temperature range of -40°C to +85°C. The component utilizes a radial through-hole package with a 5.00 mm lead spacing.

Ptc Resettable Fuses Feature Summary

• Provides rapid response to overcurrent conditions
• Offers low parasitic capacitance and flat frequency impedance
• Available in matched resistance devices for precision applications

Ptc Resettable Fuses Applications

• Building and home automation systems
• Telecommunications equipment
• Line-rated circuit protection

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix RC against the official Littelfuse datasheet to confirm it denotes standard packaging or specific compliance variations. Ensure the procurement matches the exact part number TRF600-150-RC rather than generic TRF600-150 variants. Confirm RoHS3 compliance status during sourcing. Cross-reference agency approvals such as UL 1434, CSA, and EN 60730-1 if required by the target application standards. Validate that the radial disc package dimensions align with the PCB layout requirements.

Ptc Resettable Fuses Selection Notes

Select this component when a 150 mA holding current is required for line-rated or telecom applications. The low parasitic capacitance makes it suitable for high-frequency signal lines where signal integrity is critical. Consider the 6 Ohm minimum resistance for voltage drop calculations in low-voltage circuits. The radial through-hole format is appropriate for manual assembly or wave soldering processes. Evaluate the 3 A maximum fault current capability against potential surge scenarios in the target system.

Ptc Resettable Fuses Part Context

The TRF600-150-RC belongs to the Littelfuse PolySwitch TRF600 series, which is optimized for building automation and telecommunications. This series is characterized by fast trip times and precise resistance matching capabilities. The TRF600 family provides reliable overcurrent protection while maintaining low signal distortion, making it distinct from general-purpose PTC fuses used in consumer electronics.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include TRF600-150, TRF600-150-B-0.5, and TRF600-150-R2-B-0.5. Verify that alternative part numbers maintain the same 150 mA holding current and 250 VDC rating. Ensure the replacement device retains the radial through-hole package and 5.00 mm lead spacing for mechanical compatibility.