PTGL05AS3R9K2B51A0

Ptc Resettable Fuses Overview

The PTGL05AS3R9K2B51A0 is a ceramic PTC thermistor from the PTGL series, designed for PCB mount applications. It features a nominal resistance of 3.9 Ohms with a tolerance of 10%. The component operates within a temperature range of -40°C to +125°C and is rated for a maximum voltage of 30V. It has a hold current of 340 mA and a trip current of 452 mA, capable of handling a maximum current of 3.5 A. The device utilizes a radial 2-pin package with a disc form factor.

Ptc Resettable Fuses Feature Summary

• Provides overcurrent protection through self-resetting positive temperature coefficient behavior
• Constructed using ceramic materials for reliable thermal performance
• Designed for through-hole mounting on printed circuit boards

Ptc Resettable Fuses Applications

• Overcurrent protection in electronic circuits
• Temperature sensing applications
• Consumer electronics power supply protection

Ptc Resettable Fuses Procurement Notes

Verify the specific electrical ratings and physical dimensions against the official Murata datasheet before integration. Confirm that the component lifecycle status aligns with long-term production requirements. Ensure compatibility with existing PCB footprints and thermal management strategies during the design phase.

Ptc Resettable Fuses Selection Notes

Select this component when a low-profile radial PTC fuse is required for circuits operating at 30V or less. Consider the 3.9 Ohm initial resistance and 340 mA hold current to ensure proper circuit functionality under normal conditions. Evaluate the trip characteristics to guarantee adequate protection against fault currents without nuisance tripping.

Ptc Resettable Fuses Part Context

This part belongs to the PTGL series of POSISTOR devices manufactured by Murata Electronics. These components are classified as PTC thermistors intended for use in various electronic assemblies. The series offers standardized mounting options and electrical characteristics suitable for general-purpose protection tasks in consumer and industrial equipment.

Ptc Resettable Fuses Replacement Considerations

Consult official substitution lists for equivalent PTGL series parts with matching voltage and current ratings. Verify that alternative components maintain compatible resistance values and package dimensions to ensure seamless integration into existing designs.