PTGL12AS4R7K6B51A0

Ptc Resettable Fuses Overview

The PTGL12AS4R7K6B51A0 is a POSISTOR PTC thermistor manufactured by Murata Electronics, designed for PCB mounting in radial configurations. It features a nominal resistance of 4.7 Ohms with a tolerance of 10 percent and a maximum rated voltage of 140 volts. The component supports a continuous current rating of 380 milliamperes and operates within a temperature range of -30 degrees Celsius to +85 degrees Celsius. It holds AEC-Q100 qualification for automotive reliability and utilizes a ceramic construction.

Ptc Resettable Fuses Feature Summary

• Provides automatic circuit protection through positive temperature coefficient characteristics that limit fault currents upon overheating.
• Ensures reliable operation in demanding environments through AEC-Q100 automotive qualification standards.
• Facilitates automated assembly processes via standard radial leaded packaging suitable for printed circuit board integration.

Ptc Resettable Fuses Applications

• Automotive electronic circuits requiring overcurrent protection
• Power supply input stages for surge suppression
• General-purpose circuit protection in consumer electronics

Ptc Resettable Fuses Procurement Notes

Verify the specific part number against official Murata documentation to confirm availability status, as production lifecycles may have changed. Ensure compatibility with existing thermal management designs and verify that the 140V rating aligns with system requirements before finalizing procurement plans.

Ptc Resettable Fuses Selection Notes

Select this component when a robust, self-resetting protection device is required for low-voltage DC applications. The 4.7 Ohm resistance value offers a balance between inrush current limiting and steady-state power dissipation. Confirm that the 380mA holding current meets the operational load requirements without triggering nuisance trips during normal operation.

Ptc Resettable Fuses Part Context

This device belongs to the POSISTOR PTGL series, which represents Murata's line of ceramic PTC thermistors. These components are engineered specifically for circuit protection roles where traditional fuses are impractical due to the need for resettable functionality. The series is widely utilized across various industrial and automotive sectors.

Ptc Resettable Fuses Replacement Considerations

Consult official Murata replacement guides for direct substitutes. Verify that any alternative maintains identical voltage ratings, current limits, and physical dimensions to ensure seamless integration into existing PCB layouts without redesigning the footprint or clearance requirements.

Ptc Resettable Fuses FAQ

What is the maximum operating temperature for this component?

The PTGL12AS4R7K6B51A0 is rated for a maximum operating temperature of 85 degrees Celsius.

Is this component qualified for automotive use?

Yes, the component holds AEC-Q100 qualification, making it suitable for automotive electronic applications.