B57213P0330M351

Overview

The B57213P0330M351 is a leaded inrush current limiting thermistor from the EPCOS P13 series. It features a 13mm diameter disk with a UL 94V-0 flame-retardant coating and tinned copper wire leads spaced at 7.5mm. At 25°C, the resistance is 33 Ohms with a tolerance of ±20%. The component supports a maximum steady-state current of 3A and exhibits a resistance of 680 mOhms under specific operating currents.

Feature Summary

• Provides effective inrush current limitation for electronic circuits
• Features a UL 94V-0 flame-retardant protective coating
• Utilizes kinked tinned copper wire leads for secure mounting

Applications

• Power supply input stages
• Transformer protection
• Motor drive circuits

Procurement Notes

Verify the complete ordering code matches the required specifications. Confirm that the manufacturer designation aligns with TDK Electronics standards. Ensure the component meets necessary safety certifications for the intended application environment.

Selection Notes

Select this component based on its 33 Ohm initial resistance and 3A steady-state current rating. Consider the physical dimensions and lead configuration for PCB layout compatibility. Evaluate thermal management requirements to ensure reliable operation within specified limits.

Part Context

This part belongs to the P13 series of NTC inrush current limiters manufactured by EPCOS, now part of TDK Electronics. These components are designed to protect sensitive electronics from high startup currents common in power applications.

Replacement Considerations

B57213P0330M351

FAQ

What is the resistance value at 25°C?

The resistance at 25°C is 33 Ohms.

What is the maximum steady-state current?

The maximum steady-state current is 3A.