B59880C0120A051

Ptc Resettable Fuses Overview

The B59880C0120A051 is a ceramic PTC thermistor from the TDK overcurrent protection series, designed for through-hole radial disk mounting. It features a nominal resistance of 39 ohms at 25°C and a maximum rated voltage of 110V. The device maintains a hold current (Ih) of 55 mA and trips at a trip current (It) of 110 mA. With a maximum fault current rating of 1 A, it provides reliable circuit protection in a compact 1210 package measuring 3.2 mm by 1.6 mm.

Ptc Resettable Fuses Feature Summary

• Provides automatic resettable overcurrent protection via positive temperature coefficient characteristics
• Utilizes a radial leaded disk construction for standard through-hole PCB integration
• Ensures safety compliance with Underwriters Laboratories (UR) certification

Ptc Resettable Fuses Applications

• Overcurrent protection for low-voltage electronic circuits
• Protection of power supply input lines
• Component safeguarding in consumer electronics devices

Ptc Resettable Fuses Procurement Notes

Verify the specific electrical ratings against the official TDK datasheet to ensure compatibility with the target circuit's voltage and current requirements. Confirm that the radial lead configuration matches the printed circuit board layout. Check for RoHS compliance status and any recent product change notices regarding material or dimensional updates before finalizing procurement orders.

Ptc Resettable Fuses Selection Notes

Select this component when a self-resetting fuse is required for circuits operating at voltages up to 110V. The 55 mA hold current defines the continuous operational limit, while the 1 A maximum fault current indicates the surge tolerance capability. Ensure the application environment remains within the specified operating temperature range to maintain consistent tripping performance and long-term reliability.

Ptc Resettable Fuses Part Context

This part belongs to the B598xx series of PTC thermistors manufactured by TDK Electronics AG, formerly EPCOS. The series is dedicated to circuit protection applications, offering alternatives to traditional fuses. As a subsidiary brand of TDK, these components leverage established manufacturing processes for high-reliability passive electronic parts used globally in industrial and consumer markets.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include other B598xx series variants such as B59870C0120A051 or B59872C0120A051, provided their voltage and current ratings align with the design specifications. Cross-reference parameters like hold current and resistance to ensure functional equivalence without compromising circuit safety margins.