B57235S0809M051

Overview

The B57235S0809M051 is a leaded NTC thermistor designed for inrush current limiting. It features an 8 Ohm resistance at 25°C with ±20% tolerance and a steady-state current rating of 3.5 A. The component has a disk diameter of 9.5 mm and operates within a temperature range of -55°C to +170°C. It supports 110 VAC and 230 VAC systems, offering reliable protection against high initial currents in electronic circuits.

Feature Summary

• Provides effective suppression of high inrush currents during power-up sequences
• Features robust thermal stability across a wide operating temperature range
• Utilizes radial leads for secure PCB mounting and mechanical support

Applications

• Power supply input stages
• Consumer electronics devices
• Industrial control equipment

Procurement Notes

Verify the specific ordering suffix M051 against official TDK documentation to confirm package and marking details. Ensure compatibility with target voltage ratings and thermal management requirements. Cross-reference datasheet parameters for resistance tolerance and current limits before integration.

Selection Notes

Select this component based on its 8 Ohm cold resistance and 3.5 A steady-state capability. Evaluate thermal dissipation needs within the enclosure. Confirm that the 9.5 mm form factor fits the PCB layout constraints and that the NTC characteristic aligns with the circuit's surge protection strategy.

Part Context

This part belongs to the EPCOS (TDK) NTC thermistor family specialized for circuit protection. These components are widely used in global electronics manufacturing to enhance reliability. The series offers standardized dimensions and electrical characteristics suitable for mass production environments.

Replacement Considerations

Consult official TDK cross-reference lists for verified substitutes. Ensure replacement parts match the 8 Ohm resistance, 3.5 A rating, and 9.5 mm diameter specifications to maintain circuit performance.

FAQ

What is the maximum steady-state current rating?

The maximum steady-state current rating is 3.5 A.

What is the resistance value at 25°C?

The nominal resistance at 25°C is 8 Ohms with a tolerance of ±20%.