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The B57234S0109M051 is an NTC thermistor designed for inrush current limiting applications. It features a nominal resistance of 10 Ohms with a tolerance of 20%. The component has a current rating of 3.5 A and voltage ratings of 110 VAC and 230 VAC. It operates within a temperature range of -55 C to +170 C. The physical dimensions include a case diameter of 9.5 mm and a width of 6 mm, with a lead diameter of 0.6 mm and lead spacing of 5 mm. The power rating is specified at 1.8 W.
Verify the specific datasheet version for the B57234S0109M051 to confirm detailed thermal characteristics and derating curves. Ensure that the application environment does not exceed the maximum operating temperature of +170 C. Confirm compatibility with the target PCB layout regarding the 5 mm lead spacing and 9.5 mm diameter. Cross-reference the 10 Ohm resistance value with circuit design requirements to ensure adequate inrush suppression.
Select this component when a 10 Ohm initial resistance is required for inrush protection. Consider the 3.5 A current rating and 1.8 W power dissipation capabilities relative to the system's peak load. The radial leaded package suits through-hole PCB assembly processes. Evaluate the -55 C to +170 C operating range against environmental conditions. Compare with other S-series variants if different resistance or size constraints exist.
This part belongs to the EPCOS (now TDK) B5723x series of NTC thermistors. These components are engineered for robust inrush current limiting in various electronic devices. The series offers standardized dimensions and electrical characteristics to facilitate integration into power management designs. TDK continues to support these legacy parts under its broader portfolio of passive components.
Public confirmed substitute part numbers are not available in the provided documentation. Verify exact electrical parameters before considering alternative manufacturers.