B57236S0809M054

Overview

The B57236S0809M054 is a leaded and coated NTC thermistor disk from the S236 series, designed for inrush current limiting. It features an 11.5 mm diameter and 6 mm thickness with a nominal resistance of 8 ohms at 25°C and a tolerance of ±20%. The component supports a maximum rated power dissipation of 2.1 W and withstands AC voltages up to 265 V. Operating temperatures range from -55°C to +170°C, with a thermal time constant of 70 seconds.

Feature Summary

• Provides effective inrush current limitation during power-up cycles
• Features a robust leaded and coated disk construction
• Supports high steady-state current handling capabilities

Applications

• Power supply input stages
• Transformer protection circuits
• Motor drive systems

Procurement Notes

Verify the specific suffix M054 against official TDK documentation to confirm tape-and-reel packaging requirements. Ensure that the 8-ohm resistance value aligns with the target circuit's peak inrush current calculations. Confirm compliance with RoHS standards and relevant safety certifications such as UL or VDE before final integration.

Selection Notes

Select this component based on the required 8-ohm resistance to limit initial charging currents effectively. Evaluate the 2.1 W power rating against continuous operating conditions. Consider the 11.5 mm form factor for PCB layout constraints. Verify that the -55°C to 170°C temperature range covers the intended application environment.

Part Context

This part belongs to the EPCOS (TDK) B57236S0 series of NTC thermistors specifically engineered for inrush current limiting applications. The series utilizes leaded and coated disk technology to provide reliable performance in various electronic systems. These components are widely used in consumer electronics and industrial equipment to protect sensitive downstream components from high startup currents.

Replacement Considerations

Compatible substitutes within the same series include B57236S0160M054 and B57236S0250M051, provided their respective resistance values meet the circuit design requirements. Always verify mechanical dimensions and electrical characteristics against the original datasheet before substitution.