B57213P0509M301

Overview

The B57213P0509M301 is a radial leaded NTC inrush current limiter from the P13 series. It features a nominal resistance of 5 Ohms at 25°C with a tolerance of ±20%. The component supports a maximum steady-state current of 6A and has a minimum resistance of 0.106 Ohms at maximum current. Physical dimensions include a diameter of 14.5mm, height of 22mm, and lead spacing of 7mm. It operates within a temperature range of -40°C to 170°C.

Feature Summary

• Provides effective inrush current limiting for power supply circuits
• Radial leaded construction facilitates through-hole PCB mounting
• Coated disk design ensures environmental protection

Applications

• Inrush current limiting in AC/DC converters
• Power supply input stages
• Electronic equipment surge protection

Procurement Notes

Verify the specific part number suffix against official TDK documentation to confirm exact electrical characteristics and package dimensions. Ensure compatibility with required thermal management and mounting constraints. Cross-reference certification requirements such as UL or VDE if applicable to the final assembly. Confirm that the steady-state current rating meets the application's operational demands without derating issues.

Selection Notes

Select this component based on the required nominal resistance and maximum steady-state current for the target circuit. Consider the physical size constraints regarding the 14.5mm diameter and 22mm height. Evaluate the operating temperature range to ensure reliability under expected thermal conditions. Compare alternative values within the P13 series if different resistance or current ratings are needed.

Part Context

This component belongs to the B57213P0***M3*1 series of NTC thermistors manufactured by EPCOS (TDK). These devices are designed specifically for inrush current limiting applications. The series offers various resistance values and current ratings to suit different power levels. They are widely used in consumer electronics and industrial power supplies.

Replacement Considerations

Compatible substitutes include other B57213P series variants with matching resistance and current ratings. Verify equivalent certifications and physical dimensions before substitution. Consult official TDK cross-reference lists for approved alternatives.