B59870C0120A051

Ptc Resettable Fuses Overview

The B59870C0120A051 is a ceramic PTC reset fuse manufactured by TDK. It features a maximum voltage rating of 265V and a hold current (Ih) of 100 mA. The trip current (It) is specified at 200 mA, with a maximum current rating of 1 A. At 25°C, the typical resistance is 25 Ohms. The component utilizes a radial, disk-style through-hole package with dimensions of 9.00mm diameter and 5.00mm height. It operates within a temperature range of 0°C to 60°C.

Ptc Resettable Fuses Feature Summary

• Provides overcurrent protection via positive temperature coefficient ceramic technology.
• Automatically resets after fault conditions clear without manual intervention.
• Designed for through-hole mounting in compact radial configurations.

Ptc Resettable Fuses Applications

• Overcurrent protection in AC power supply circuits
• Protection of electronic devices connected to mains voltage
• Component safeguarding in industrial control systems

Ptc Resettable Fuses Procurement Notes

Verify that the specific part number matches the required electrical ratings for your circuit design. Confirm compliance with RoHS3 standards if environmental regulations apply. Ensure the supplier provides official documentation to validate authenticity. Check for 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 protection mechanism is required for low-current applications up to 100 mA. The 265V rating makes it suitable for direct connection to standard AC lines. Consider the 25 Ohm initial resistance for potential impact on circuit startup behavior. Ensure the operating environment stays within the specified 0°C to 60°C range for optimal performance.

Ptc Resettable Fuses Part Context

This part belongs to the B598xx series of PTC thermistors from TDK Electronics. The series is designed for circuit protection applications requiring reliable overcurrent handling. TDK, formerly EPCOS, integrates these components into broader electronic protection portfolios for consumer and industrial markets.

Ptc Resettable Fuses Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source data. Consult official TDK documentation for cross-reference information or equivalent series alternatives.