B57213P0120M351

Overview

The B57213P0120M351 is a leaded and coated inrush current limiting thermistor from the P13 series. It features a resistance of 12 Ohms at 25°C with a tolerance of ±20%. The component supports a maximum steady-state current of 4A and has a diameter of 14.5mm (0.571 inches). It includes UL, VDE, and CQC approvals.

Feature Summary

• Leaded and coated disk design for robust inrush current limitation
• High thermal stability suitable for demanding electronic applications
• Compliant with international safety standards including UL, VDE, and CQC

Applications

• Power supply input stages
• Electronic ballast protection
• Motor drive circuits

Procurement Notes

Verify the specific ordering code suffix to ensure correct resistance and tolerance alignment with system requirements. Confirm package dimensions and lead spacing match PCB layout constraints. Check for updated safety certifications relevant to the target market.

Selection Notes

Select this component based on the required 12 Ohm cold resistance and 4A continuous current rating. Ensure the physical size fits within the available enclosure space. Consider the thermal environment and expected inrush energy levels during circuit design.

Part Context

This part belongs to the EPCOS P13 series of inrush current limiters. These components are designed to protect electronic equipment from high initial charging currents. The series offers various resistance values and current ratings to suit different power levels.

Replacement Considerations

Check for direct substitutes within the B57213P series with matching resistance and current ratings. Verify that alternative parts meet the same safety approvals and dimensional requirements.