SL1212004

Inrush Current Limiters (ICL) Overview

The SL1212004 is a negative temperature coefficient (NTC) thermistor from the Vishay Ametherm SL12 series, designed as an inrush current limiter. It features a nominal resistance of 12 ohms with a tolerance of ±20%. The component supports a maximum steady-state current of 4 A at 25°C and has a radial leaded package with a diameter of approximately 12.50 mm (0.492 inches).

Inrush Current Limiters (ICL) Feature Summary

• Provides effective suppression of high inrush currents during power-up cycles.
• Utilizes NTC thermistor technology for automatic resistance adjustment based on temperature.
• Features a robust radial leaded construction suitable for through-hole mounting.

Inrush Current Limiters (ICL) Applications

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

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific part number against official manufacturer documentation to ensure correct resistance and current ratings. Confirm that the radial leaded package dimensions match the target PCB footprint requirements before finalizing procurement decisions.

Inrush Current Limiters (ICL) Selection Notes

Select this component when circuit design requires limiting initial charging currents to protect downstream components. Ensure the maximum recommended energy rating aligns with the system's surge capabilities. Verify thermal management requirements for steady-state operation within the specified current limits.

Inrush Current Limiters (ICL) Part Context

This device belongs to the SL12 series of inrush current limiters manufactured by Vishay Ametherm. The series offers various resistance values and current ratings tailored for different power applications, providing reliable protection against transient overcurrent conditions in electronic systems.

Inrush Current Limiters (ICL) Replacement Considerations

Compatible substitutes include the SL1212006 for higher current capacity or the SL1212008 for even greater steady-state current handling. Ensure replacement parts maintain equivalent resistance values and package dimensions to fit existing designs.