B57236S0509L002

Overview

The B57236S0509L002 is an NTC thermistor from the B57236S series, designed for inrush current limiting. It features a nominal resistance of 5 Ω at 25°C with a tolerance of ±15%. The component has a disk diameter of 11.5 mm and supports a maximum steady-state current of 4.5 A. It operates within a temperature range of -55°C to +170°C and utilizes through-hole mounting with tinned copper leads.

Feature Summary

• Negative temperature coefficient (NTC) characteristic for effective inrush current suppression
• Robust radial leaded construction suitable for high-current applications
• Compliant with RoHS directives and REACH regulations

Applications

• Inrush current limiting in power supply units
• Protection circuits for industrial electronic equipment
• Consumer electronics power input stages

Procurement Notes

Verify that the specific suffix 'L002' matches the required 15% tolerance and 4.5A rating, as the B57236S series includes variants with different tolerances and current capacities. Confirm package type availability, as distributors may stock bulk or tape-and-reel options depending on the specific ordering code. Ensure compatibility with existing PCB footprints for radial leaded components.

Selection Notes

Select this component when a 5 Ω initial resistance and 4.5 A steady-state current capacity are required. The 11.5 mm disk size offers a balance between physical footprint and energy absorption capability. Consider the -55°C to +170°C operating range for environmental suitability. Compare against other series members like B57236S0509M000 if different packaging or tolerance specifications are needed.

Part Context

This part belongs to the EPCOS (now TDK Electronics) B57236S series of coated disk NTC thermistors. These components are specifically engineered for circuit protection against surge currents during power-up phases. The series provides various resistance values and current ratings to suit diverse power handling requirements across multiple industries.

Replacement Considerations

B57236S0509M000: Same electrical parameters but potentially different packaging.