NTC 5D210 thermistor

The NTC 5D-210 Thermistor is a negative temperature coefficient (NTC) power thermistor designed primarily for inrush current suppression in power supplies, transformers, switching circuits, and electronic equipment. It limits high startup surge currents by presenting a higher resistance at room temperature, then rapidly decreasing in resistance as the device heats up during operation. Constructed from high-quality ceramic material, the 5D-210 provides reliable thermal performance, excellent stability, and long service life in demanding electrical environments. Its compact radial leaded design allows easy PCB mounting and integration into AC/DC power circuits. This thermistor is commonly used in switch-mode power supplies, battery chargers, inverters, UPS systems, and motor control equipment to protect sensitive components from damaging current surges during startup.