PTGL09AS1R2K2B51B0

Ptc Resettable Fuses Overview

The PTGL09AS1R2K2B51B0 is a ceramic PTC thermistor from Murata Electronics' POSISTOR PTGL series, designed for overcurrent and inrush current protection. It features a maximum operating voltage of 30V and a typical resistance of 1.2 ohms at 25°C with a tolerance of ±10%. The device has a maximum trip current of 1.625 A and a hold current of 875 mA, supporting a maximum surge current of 6 A. It utilizes a radial disc package with a 5.00 mm lead spacing and operates within a temperature range of -10°C to +60°C.

Ptc Resettable Fuses Feature Summary

• Provides automatic circuit protection against overcurrent conditions by increasing resistance significantly upon thermal activation.
• Designed specifically for managing inrush current during power-up phases in electronic circuits.
• Features a ceramic construction suitable for through-hole mounting on printed circuit boards.

Ptc Resettable Fuses Applications

• Overcurrent protection in consumer electronics
• Inrush current limiting for industrial equipment
• Circuit protection for automotive infotainment systems

Ptc Resettable Fuses Procurement Notes

Verify the component status as this specific part number may be subject to end-of-life notifications or discontinuation notices issued by Murata Electronics. Confirm that the required electrical parameters, such as the 30V rating and 1.2-ohm resistance, align with the target application design before procurement. Ensure compliance with RoHS3 specifications if environmental regulations apply to the manufacturing process.

Ptc Resettable Fuses Selection Notes

Select this component when a low-resistance PTC fuse is required for protecting low-voltage circuits up to 30V. The 1.2-ohm nominal resistance makes it suitable for applications where minimal voltage drop is critical under normal operating conditions. Consider the radial disc form factor for through-hole assembly requirements and verify that the 875 mA hold current meets the steady-state load requirements of the protected circuit.

Ptc Resettable Fuses Part Context

This part belongs to the POSISTOR PTGL series, which focuses on compact PTC thermistors for general-purpose circuit protection. The PTGL series is characterized by its small size and reliability in consumer and industrial applications. It complements other series like PTNT and PTNR, offering specific characteristics tailored for different current and voltage ratings within the same product family.

Ptc Resettable Fuses Replacement Considerations

Check for official replacement part numbers provided in Murata's Product Change Notification (PCN) documents, particularly those related to the End of Life notice dated March 30, 2018. Consult the manufacturer's catalog for equivalent PTGL series components with matching voltage and current ratings if this specific variant is unavailable.

Ptc Resettable Fuses FAQ

What is the typical resistance value of the PTGL09AS1R2K2B51B0 at room temperature?

The typical resistance at 25°C is 1.2 ohms with a tolerance of ±10%.

Is this component suitable for high-temperature environments beyond standard operating limits?

No, the specified operating temperature range is -10°C to +60°C. Exceeding these limits may affect performance or reliability.