NTC (Negative Temperature Coefficient) Thermistor What it does Measures or responds to temperature by decreasing resistance as temperature rises. Provides precise temperature sensing, temperature compensation, or inrushcurrent limiting depending on application and configuration. Key benefits — why you need it Accurate temperature response: predictable resistance vs. temperature behavior simplifies control and monitoring. Compact and reliable: small footprint suitable for tight spaces and embedded electronics. Simple integration: passive device that requires no power to operate and works with common measurement circuits (voltage divider, bridge, ADC inputs). Costeffective solution for thermal protection, compensation, and sensing in many designs. Important attributes Function: Negative Temperature Coefficient behavior — resistance falls with increasing temperature, enabling sensing or currentlimiting functions. Compatibility: Works with standard microcontroller ADCs, comparators, temperature controllers, and analog monitoring circuits. Can be used in sensor arrays or as a discrete component on PCBs. Size: Available in compact bead, disk, or molded packages appropriate for PCB mounting or direct environmental exposure. Select package based on mounting and thermal response needs. Material: Typically metaloxide ceramic construction optimized for stable, repeatable resistancetemperature characteristics. Performance: Fast thermal response (packagedependent), wide operating range (depending on chosen part), and repeatable resistancetemperature curves for calibration and control. How it solves common problems Prevents overheating by enabling closedloop temperature control or triggering protection circuits. Compensates drift in analog circuits by providing a temperaturedependent resistance that offsets component changes with temperature. Limits inrush current in power applications when used in thermistorbased NTC inrush limiters, protecting fuses and switches during startup. Typical applications HVAC and refrigeration controllers for temperature monitoring and control. Battery packs and charging circuits for temperature sensing and charge management. Power supplies and motor drives for inrush current limiting and thermal protection. Consumer electronics and industrial sensors for temperature compensation and monitoring. Integration notes Select the correct resistance vs. temperature curve and tolerance for your application; calibration may be required for accuracy needs. Consider mounting and thermal coupling to the measured medium to ensure accurate response. Choose package and lead style based on environmental exposure, mechanical constraints, and thermal time constant requirements. information Specify required resistance at 25°C, Bvalue or curve, tolerance, and preferred package when ordering to ensure the right NTC variant for your design.