B57236S0309M051

Overview

The B57236S0309M051 is a leaded NTC thermistor designed for inrush current limiting. It features a disc package with dimensions of 11.5 mm diameter and 6.0 mm width. The component has a resistance of 3 Ω at 25°C with ±20% tolerance. It operates within a temperature range of -55°C to 170°C and supports a maximum power dissipation of 1.8W. The device utilizes radial leads for through-hole mounting.

Feature Summary

• Provides effective inrush current limitation during power-up phases
• Utilizes negative temperature coefficient characteristics for self-regulating protection
• Features robust leaded construction suitable for through-hole PCB integration

Applications

• Power supply input stages
• Transformer primary circuits
• Capacitor charging protection

Procurement Notes

Verify the specific suffix M051 against the original design specification, as it denotes the lead configuration and coating type. Confirm that the 1.8W power rating aligns with the thermal management requirements of the target application. Ensure compatibility with the manufacturing process regarding the radial lead spacing and disc dimensions.

Selection Notes

Select this component when a low resistance value is required to minimize steady-state voltage drop while providing adequate surge protection. Consider the thermal environment to ensure the operating temperature remains within the specified limits. Evaluate the circuit's peak current to verify the device can handle the initial surge without damage.

Part Context

This part belongs to the B57236S series of NTC thermistors manufactured by TDK Electronics. The series is specifically engineered for inrush current limiting applications in electronic equipment. These components are widely used in consumer electronics and industrial power supplies to protect sensitive downstream components from high startup currents.

Replacement Considerations

• B57236S0309M000

FAQ

What is the maximum power dissipation of this component?

The maximum power dissipation is 1.8W.

Does this component have automotive certification?

No, this specific part number does not carry automotive standard certification.