B57236S0500M054

Overview

The B57236S0500M054 is a Negative Temperature Coefficient (NTC) thermistor from the S236 series, manufactured by TDK. Designed as an inrush current limiter, it features a nominal resistance of 50 Ohms at 25°C with a tolerance of ±20%. The component has a maximum rated power of 2.1W and operates within a temperature range of -55°C to +170°C. It utilizes radial leads for PCB mounting, with dimensions of 11.5mm diameter, 6mm depth, and a lead spacing of 5mm.

Feature Summary

• Functions as an NTC inrush current limiter to protect electronic circuits during startup
• Utilizes radial leaded construction for through-hole PCB mounting applications
• Provides thermal stability across a wide operating temperature range from -55°C to +170°C

Applications

• Inrush current limiting in power supply inputs
• Protection of electronic circuits against high initial charging currents
• General purpose inrush current suppression in AC/DC converters

Procurement Notes

Verify the specific ordering suffix M054 corresponds to the Ammo Pack packaging format when sourcing. Confirm that the 50 Ohm resistance value aligns with the target circuit's inrush current requirements. Ensure the radial lead pitch matches the printed circuit board layout specifications prior to procurement.

Selection Notes

Select this component based on its 50 Ohm nominal resistance and 2.1W power rating to effectively manage startup currents. Consider the radial package style for compatibility with existing through-hole manufacturing processes. Evaluate the thermal time constant and steady-state resistance characteristics to ensure adequate protection without excessive voltage drop during normal operation.

Part Context

This part belongs to the EPCOS/TDK S236 series of NTC thermistors, specifically designed for inrush current limiting. The series offers various resistance values and package options to suit different power levels. As a product of TDK Electronics, formerly EPCOS, it adheres to established quality standards for passive electronic components used in industrial and consumer electronics.

Replacement Considerations

Cross-reference with other S236 series variants such as B57236S0100M054 or B57236S0160M054 if different resistance values are required. Verify that substitute parts maintain the same radial lead configuration and dimensional constraints to ensure mechanical fit on the PCB.