B57213P0709M351

Overview

The B57213P0709M351 is a leaded and coated inrush current limiter (ICL) from the P13 series, manufactured by EPCOS (TDK). It features a nominal resistance of 7 Ohms at 25°C with a tolerance of ±20%. The component supports a maximum steady-state current of 5A and exhibits a hot resistance of 9 mOhms. Designed for through-hole mounting, it has a disk diameter of 14.5mm and a lead spacing of 7.50mm. It holds safety certifications including CQC, UL, and VDE.

Feature Summary

• Provides effective inrush current limiting to protect downstream electronic circuits during power-up.
• Features leaded and coated disk construction suitable for robust industrial and consumer applications.
• Complies with international safety standards including UL, VDE, and CQC certifications.

Applications

• Inrush current limiting in switch-mode power supplies
• Protection in consumer electronics equipment
• Industrial control system power inputs

Procurement Notes

Verify the specific ordering suffix M351 against official TDK documentation to confirm tape and reel packaging requirements. Ensure that the thermal derating curves align with your application's ambient temperature conditions. Cross-reference the UL and VDE certification numbers directly with the manufacturer's database to validate compliance status before finalizing procurement.

Selection Notes

Select this component when a 7 Ohm initial resistance and 5A steady-state current rating are required for inrush protection. Compare the energy absorption capabilities against potential surge events in the target circuit. Consider the physical dimensions of the 14.5mm disk and 7.50mm lead spacing to ensure compatibility with the printed circuit board layout and mechanical constraints of the assembly.

Part Context

This part belongs to the B57213 P13 series of inrush current limiters produced by EPCOS, now integrated into TDK Electronics. The P13 series utilizes positive temperature coefficient materials to dynamically adjust resistance based on current flow. This specific model represents a standard through-hole solution designed for reliable performance in general-purpose electronic power applications.

Replacement Considerations

Direct substitutes within the same series include B57213P0160M351 for higher resistance applications. Verify equivalent package dimensions and lead spacing when considering alternative manufacturers. Ensure that any replacement maintains the required 5A steady-state current rating and compatible safety approvals for the end product.

FAQ

What is the hot resistance value of the B57213P0709M351?

The hot resistance value is 9 mOhms.

Does this component have safety certifications?

Yes, it is certified by CQC, UL, and VDE.