B57213P0220M351

Overview

The B57213P0220M351 is a leaded and coated NTC thermistor disk from the P13 series, designed for inrush current limiting. It features a resistance of 22 Ohms at 25°C with a tolerance of ±20%. The component supports a maximum steady-state current of 4A and exhibits a residual resistance of 197 mOhms at different currents. It has a diameter of 14.5mm (0.571 inches) and a lead spacing of 7.50mm (0.295 inches). The device is RoHS3 compliant and holds CQC, UL, and VDE certifications.

Feature Summary

• Leaded and coated disk construction
• Inrush current limiting capability
• High steady-state current support

Applications

• Power supply input protection
• Electronic circuit surge suppression
• Industrial equipment power stages

Procurement Notes

Verify the specific ordering suffix M351 to confirm tape and reel packaging requirements. Ensure the application voltage and current ratings align with the 4A steady-state limit. Confirm that the 22 Ohm initial resistance meets the system's inrush control specifications. Check for RoHS3 compliance status if required by project standards.

Selection Notes

Select this component when a 22 Ohm initial resistance is required for inrush limiting. The 14.5mm diameter provides adequate thermal mass for high-energy pulses. Consider the 4A steady-state rating for continuous operation loads. Verify lead spacing compatibility with PCB layout constraints.

Part Context

This part belongs to the EPCOS P13 series of NTC thermistors. These components are manufactured by TDK Electronics under the EPCOS brand. The series is specifically engineered for protecting electronic circuits against high inrush currents during power-up phases.

Replacement Considerations

Public confirmed substitute: BN-LG10Y200MYB by Bourns Inc.