B57234S0709M000

Overview

The B57234S0709M000 is an NTC thermistor designed for inrush current limiting, manufactured by EPCOS (TDK). It features a nominal resistance of 7 Ohms with a tolerance of ±20%. The component supports operating voltages of 110 VAC and 230 VAC. It has a maximum steady-state current rating of 6 A and a power rating of 3.1 W. The physical dimensions include a diameter of 15 mm and a width of 7 mm, with a lead spacing of 7.5 mm. The device operates within a temperature range of -55°C to +170°C.

Feature Summary

• Provides effective suppression of high inrush currents during power-up phases
• Utilizes negative temperature coefficient characteristics for automatic resistance adjustment
• Designed for robust performance in AC voltage applications

Applications

• Power supply input stages
• Consumer electronics protection
• Industrial equipment circuitry

Procurement Notes

Verify the specific ordering suffix against official TDK documentation to ensure correct tolerance and packaging specifications. Confirm that the component meets all required RoHS compliance standards for the intended market. Cross-reference the datasheet parameters with system requirements to validate thermal and electrical suitability before finalizing procurement orders.

Selection Notes

Select this component based on the required nominal resistance value and maximum current handling capabilities. Ensure the operating voltage range aligns with the target application's AC line specifications. Consider the physical package dimensions and lead spacing constraints for PCB layout compatibility. Verify the thermal stability requirements against the specified operating temperature range.

Part Context

This part belongs to the B57234 series of inrush current limiters from EPCOS (TDK). These components are specifically engineered to protect electronic circuits from damage caused by high initial charging currents. The series offers various resistance values and current ratings to suit different power levels and application demands.

Replacement Considerations

Public confirmed substitute part numbers: B57237S709M54.