B57235S0809M054

Overview

The B57235S0809M054 is an NTC thermistor from the S235 series, designed for inrush current limiting. It features a nominal resistance of 8 ohms at 25°C with a tolerance of ±20%. The component has a maximum rated power of 1.8 W and a thermal time constant of 60 seconds. It operates within a temperature range of -55°C to +170°C. The physical dimensions are 9.5 mm in diameter and 6 mm in height, with radial leads spaced 5 mm apart.

Feature Summary

• Provides effective inrush current limiting in electronic circuits
• Features robust construction suitable for PCB mounting
• Offers reliable performance across wide operating temperatures

Applications

• Inrush current limiting in power supplies
• Protection of electronic circuits against voltage spikes
• General circuit protection applications

Procurement Notes

Verify the specific ordering suffix M054 against official TDK documentation to confirm lead configuration and packaging details. Ensure compatibility with required thermal and electrical ratings for the target application. Cross-reference part numbers carefully as suffixes define critical physical attributes.

Selection Notes

Select this component based on the required 8-ohm resistance and 1.8-watt power rating. Consider the 60-second thermal time constant for response speed requirements. Verify that the radial lead spacing and disk dimensions fit the available PCB layout constraints.

Part Context

This part belongs to the S235 series of NTC thermistors manufactured by EPCOS (TDK Electronics). These components are specifically engineered for inrush current limiting duties. The series offers various resistance values and physical sizes to suit different power handling needs in consumer and industrial electronics.

Replacement Considerations

Compatible substitutes include B57235S0809M000 and B57235S0809M51. Verify that alternative parts match the 8-ohm resistance, 1.8W power rating, and dimensional specifications before integration.