YM120C45N301

Ptc Resettable Fuses Overview

The YM120C45N301 is a radial lead PTC resettable fuse manufactured by Amphenol Advanced Sensors (Thermometrics). It features a hold current of 39mA and a trip current of 78mA, designed for overcurrent protection in electronic circuits. The device operates at a maximum voltage of 265VAC and has a maximum power dissipation of 0.5W. It is constructed with a thermoplastic housing and tin-plated copper leads, ensuring reliable performance in various industrial applications.

Ptc Resettable Fuses Feature Summary

• Provides automatic circuit reset after fault condition removal
• Offers overcurrent and overheating protection
• Features low resistance for minimal power loss
• Maintains stable performance across wide temperature ranges

Ptc Resettable Fuses Applications

• Consumer electronics power supply protection
• Industrial control circuit safeguarding
• Automotive electrical system components
• Telecommunications equipment protection

Ptc Resettable Fuses Procurement Notes

Verify the specific hold and trip current ratings against application requirements before procurement. Confirm that the maximum operating voltage aligns with the circuit design specifications. Ensure compliance with relevant safety standards such as UL or IEC for the intended market. Check for RoHS compliance status if environmental regulations apply to the final product assembly.

Ptc Resettable Fuses Selection Notes

Select this component based on the required hold current of 39mA and the 265VAC rating. Consider the physical size and lead configuration for PCB layout constraints. Evaluate the thermal environment to ensure the device can dissipate heat effectively without nuisance tripping. Compare alternative models only if specific parameter mismatches exist in the original design.

Ptc Resettable Fuses Part Context

This part belongs to the Thermometrics line of resettable fuses from Amphenol Advanced Sensors. These devices are engineered for robust overcurrent protection in compact electronic assemblies. The series is widely used in industries requiring reliable, maintenance-free circuit interruption solutions without the need for manual fuse replacement.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes must match the 39mA hold current and 265VAC voltage rating. Verify that alternative PTC fuses have compatible trip characteristics and physical dimensions. Ensure the replacement maintains the same lead type and termination method for seamless integration.