SL2214007

Overview

The SL2214007 is a negative temperature coefficient (NTC) thermistor inrush current limiter from the Vishay Ametherm SL22 series. It features a nominal resistance of 14 Ohms with a tolerance of ±25% and a steady-state current rating of 7 A. The component has a cylindrical diameter of 22 mm and utilizes radial leads with a pitch spacing of 3.65 mm for PCB mounting. It is designed to absorb high surge currents during power-up, protecting downstream circuitry.

Feature Summary

• Provides effective suppression of high inrush currents during initial power application to protect sensitive electronic components.
• Features rapid resistance drop from high initial value to low steady-state impedance, minimizing energy loss during normal operation.
• Constructed as a robust NTC thermistor suitable for demanding industrial and commercial power supply environments.

Applications

• Switching power supplies
• Uninterruptible power systems (UPS)
• Industrial inverters and variable frequency drives

Procurement Notes

Verify the specific lead configuration and package type against the official datasheet before ordering. Confirm that the steady-state current and voltage ratings align with the target circuit requirements. Ensure compliance with relevant safety standards such as UL certification for the intended application region.

Selection Notes

Select this component when a 14 Ohm initial resistance and 7 A continuous current capacity are required. Consider the 22 mm physical size for adequate heat dissipation and board space availability. Evaluate the thermal characteristics and energy absorption capabilities relative to the specific surge profile of the equipment.

Part Context

This part belongs to the SL22 series of inrush current limiters manufactured by Vishay Ametherm. These devices are engineered for reliability in AC and DC power applications, offering consistent performance across various industrial sectors requiring robust surge protection.

Replacement Considerations

Direct substitutes include other Vishay Ametherm parts within the SL22 series with matching electrical parameters. Cross-reference specifications carefully to ensure equivalent current handling and resistance values before replacing.