B57153S0200M000

Overview

The B57153S0200M000 is an NTC thermistor designed for inrush current limiting. It features a nominal resistance of 20 Ohms with a tolerance of 20%. The component has a maximum continuous current rating of 1.6 A and supports AC voltages of 110 VAC and 230 VAC. It operates within a temperature range of -55 °C to +170 °C. The unit utilizes a radial leaded package with an 8.5 mm diameter body, 6 mm width, and 5 mm lead spacing.

Feature Summary

• Provides effective suppression of high inrush currents during power-up phases
• Utilizes negative temperature coefficient characteristics for self-regulating resistance
• Features robust construction suitable for through-hole mounting applications

Applications

• Power supply input stages
• Electronic ballast circuits
• Transformer primary side protection

Procurement Notes

Verify the specific ordering suffix against official TDK documentation to ensure correct tolerance and packaging specifications. Confirm that the thermal dissipation factor aligns with the target circuit's heat management requirements. Cross-reference the voltage ratings with the actual operating environment to prevent derating issues. Ensure compliance with RoHS directives if required by the final assembly standards.

Selection Notes

Select this component based on the peak inrush current magnitude and steady-state operating conditions of the target circuit. Evaluate the thermal environment to ensure the maximum operating temperature limits are not exceeded during continuous operation. Compare the resistance value against acceptable startup delays to balance inrush protection with functional performance requirements.

Part Context

This component belongs to the EPCOS (TDK) series of NTC thermistors specifically engineered for inrush current limiting. These devices are characterized by their ability to reduce initial surge currents while maintaining low power loss during normal operation. The product line serves critical roles in protecting sensitive electronic components from damage caused by excessive initial charging currents.

Replacement Considerations

B57153S0200M051