B57236S160M54

Overview

The B57236S160M54 is a negative temperature coefficient (NTC) thermistor designed as an inrush current limiter. It features a nominal resistance of 16 ohms with a tolerance of ±20%. The device supports a maximum steady-state current of 2.9 amperes and has a physical diameter of 11.5 millimeters. This component is engineered to protect electronic circuits from high initial charging currents.

Feature Summary

• Provides effective suppression of high inrush currents during power-up sequences
• Utilizes NTC material properties for automatic resistance adjustment based on temperature
• Designed for robust protection of sensitive downstream electronic components

Applications

• Power supply input stages requiring surge protection
• Consumer electronics AC/DC adapter inputs
• Industrial control system power modules
• Automotive electronic unit initialization circuits

Procurement Notes

Verify the specific ordering suffix against official TDK Electronics documentation to ensure correct tolerance and thermal characteristics. Confirm RoHS compliance status through the manufacturer's latest release notes. Cross-reference the full part number with authorized distributors to avoid counterfeit components. Check for any recent lifecycle notifications regarding obsolescence or design-in recommendations before finalizing procurement plans.

Selection Notes

Select this component when circuit design requires limiting peak charging currents to specified limits. Ensure the steady-state current rating exceeds the operational load current. Verify that the thermal time constant matches the application's duty cycle requirements. Consider the physical size constraints for PCB mounting or wire attachment methods during the selection process.

Part Context

This component belongs to the EPCOS B57236 series of inrush current limiters, now managed under TDK Electronics. The series offers various resistance values and current ratings for different power applications. These thermistors are widely used in global electronics manufacturing for reliable power management solutions across multiple industry sectors.

Replacement Considerations

Consult official TDK Electronics substitution guides for verified alternative part numbers. Ensure replacement devices match the original resistance value, current rating, and physical dimensions. Verify that any substitute maintains equivalent thermal performance and safety certifications for the intended application environment.