B57236S0509M051

Overview

The B57236S0509M051 is a negative temperature coefficient (NTC) thermistor manufactured by EPCOS, a TDK Electronics brand. Designed as an inrush current limiter, this component features a nominal resistance of 5 Ohms at 25°C with a tolerance of ±20%. It supports a maximum rated power dissipation of 2.1 W and withstands peak currents up to 4.5 A. The device utilizes a radial leaded disk package measuring 11.5 mm in diameter and 16.0 mm in height. It operates within a temperature range of -55°C to +170°C.

Feature Summary

• Provides high electrical stability for effective inrush current limiting applications
• Features a robust radial leaded disk package suitable for through-hole mounting
• Delivers consistent performance across a wide operating temperature spectrum

Applications

• Inrush current limiting in electronic circuits
• Power supply input protection
• General industrial equipment surge suppression

Procurement Notes

Verify the specific part number suffix against official TDK documentation to confirm exact physical dimensions and electrical ratings. Ensure that procurement channels provide genuine components with traceable manufacturing data. Cross-reference technical specifications with the latest datasheet to validate compatibility with target circuit requirements before finalizing orders.

Selection Notes

Select this component when a 5 Ohm resistance value is required for surge suppression. Consider the 4.5 A peak current capability and 2.1 W power rating to ensure adequate thermal handling. Verify that the radial leaded form factor fits the available PCB space and mounting constraints compared to surface mount alternatives.

Part Context

This component belongs to the B57236 series of NTC thermistors designed specifically for inrush current limiting. The series offers various resistance values and package sizes to accommodate different power levels. The B57236 variant typically provides a balance of compact size and high energy absorption capacity for standard industrial applications.

Replacement Considerations

Compatible substitutes include other TDK EPCOS models from the B57236 series with matching 5 Ohm resistance, such as B57236S0500M051 or B57236S0509M000. Verify that alternative parts maintain identical voltage ratings, peak current capabilities, and physical dimensions to ensure direct interchangeability without redesigning the host circuit.