B57234S0150M000

Overview

The B57234S0150M000 is a leaded NTC thermistor from the EPCOS B57234 series, designed for inrush current limiting. It features a nominal resistance of 15 ohms at 25°C with a tolerance of ±20%. The component has a maximum steady-state current rating of 4A and operates within a temperature range of -55°C to +85°C. It utilizes a radial leaded disk package suitable for through-hole mounting.

Feature Summary

• Provides effective suppression of high inrush currents during power-up sequences
• Features self-resetting capability that returns to high resistance after cooling
• Constructed with robust ceramic materials for reliable thermal cycling performance

Applications

• Switching power supply input stages
• Consumer electronics power circuits
• Industrial equipment power inputs

Procurement Notes

Verify the specific ordering code against manufacturer documentation to ensure correct resistance and tolerance specifications. Confirm that the thermal environment supports the required cooling time for the self-resetting function. Check compliance requirements such as RoHS status prior to final procurement decisions.

Selection Notes

Select this component based on the circuit's peak inrush current and steady-state operating current requirements. Ensure the maximum allowable voltage rating exceeds the system's peak line voltage. Consider the thermal mass of the application to determine if the reset time meets operational cycle constraints.

Part Context

This part belongs to the B57234 series of leaded NTC thermistors manufactured by EPCOS (TDK). These components are specifically engineered for inrush current limitation in AC and DC applications. The series offers various resistance values to suit different power levels while maintaining consistent physical dimensions for standardized PCB layouts.

Replacement Considerations

Compatible substitutes include other leaded NTC inrush limiters with matching 15-ohm resistance and 4A current ratings. Verify that alternative parts meet the same voltage and temperature specifications. Cross-reference mechanical dimensions to ensure fitment in existing through-hole assemblies.