B59451C1130B070

Inrush Current Limiters (ICL) Overview

The B59451C1130B070 is a radial leaded PTC thermistor designed for inrush current limiting and overcurrent protection. It features a disk package with two wire terminals, supporting through-hole mounting. The component operates within a temperature range of -40 °C to 125 °C and withstands a maximum AC voltage of 440 V. Its resistance at 25 °C is 56 ohms, with a tolerance of ±25%. The device measures up to 16.00 mm in width and 20.50 mm in height.

Inrush Current Limiters (ICL) Feature Summary

• Provides inrush current limitation during power-up phases
• Offers overcurrent protection via positive temperature coefficient behavior
• Constructed as a radial leaded disk component for through-hole integration

Inrush Current Limiters (ICL) Applications

• Inrush current limiting in home appliances
• Overcurrent protection circuits
• Power supply input stages

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific ordering code against official TDK documentation to ensure correct variant selection. Confirm that the required voltage rating and thermal characteristics align with the target circuit design. Check for any updated datasheet revisions that may affect mechanical dimensions or electrical specifications before finalizing procurement.

Inrush Current Limiters (ICL) Selection Notes

Select this component when designing circuits requiring robust inrush current control for AC mains applications. Ensure the operating environment stays within the specified -40 °C to 125 °C range. Verify that the 440 V AC rating meets the system's peak voltage requirements and that the physical footprint fits the PCB layout constraints.

Inrush Current Limiters (ICL) Part Context

This part belongs to the B59451 series of PTC thermistors manufactured by EPCOS (TDK). These components are specifically engineered for protecting electronic equipment from excessive current surges. The series utilizes leaded disk technology to provide reliable performance in high-voltage environments common in consumer electronics and industrial controls.

Inrush Current Limiters (ICL) Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.