Amphenol Advanced Sensors Thermistor

The Amphenol Advanced Sensor's CL-40 is Inrush Current Limiting Thermistors consists of a disc thermistor with uninsulated lead-wires, and are used to control inrush current when switching power supplies. The main purpose of limiting inrush current is to prevent components in series with the input to the DC/DC convertor from being damaged. Typically, inrush protection prevents nuisance blowing of fuses or breakers as well as welding of switch contacts. With resistance of 5 ohms, and steady state current is 6 A.

Small physical size offers design-in benefits over large passive components.
Low cost, solid state device for inrush current suppression.
Best-in-class capacitance rating.
Low steady resistance and accompanying power loss.
Suitable for PCB mounting.
Wide operating temperature range: -58 F to 347 F (-50 C to 175 C).