B57153S0809M054

Overview

The B57153S0809M054 is an NTC thermistor from the B57153S series designed for inrush current limiting. It features a nominal resistance of 8.2 Ohms at 25°C with a tolerance of ±20%. The component has a maximum rated power of 1.4W and supports a continuous current rating of 2.2A. It operates within a temperature range of -55°C to +170°C. Physical dimensions include a diameter of 8.5mm, height of 6mm, and lead spacing of 5mm. The device utilizes radial leads for PCB mounting and carries UL 1434 certification.

Feature Summary

• Provides high electrical stability for effective inrush current suppression
• Features a compact radial package suitable for PCB mounting applications
• Offers certified safety compliance for industrial and consumer electronics

Applications

• Power supply input stages
• Switch-mode power supplies
• Consumer electronic devices
• Industrial control equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest documentation to ensure correct packaging and variant alignment. Confirm that the thermal characteristics meet the specific circuit requirements for peak current handling. Check for any recent part number revisions or obsolescence notices directly from TDK Electronics before finalizing procurement orders.

Selection Notes

Select this component based on the required steady-state resistance and peak current capacity for the target application. Ensure the operating temperature range covers the expected environmental conditions. Verify compatibility with the soldering process used in the assembly line, as thermal shock can affect performance. Compare physical dimensions against the available PCB footprint space.

Part Context

This component belongs to the B57153S series of NTC inrush current limiters manufactured by EPCOS, now part of TDK Electronics. These components are specifically engineered to protect electronic circuits from high initial charging currents. The series is widely used in various power conversion applications where reliable startup protection is critical for system longevity.

Replacement Considerations

Consult official TDK substitution lists for verified equivalents. Generic replacements may not match the specific B-parameter or thermal time constant requirements.