NRMR104F3950B1J is an epoxy sealed radial lead NTC thermistor designed for precise temperature measurement and control across industrial and commercial applications. This component features polyurethane enameled wire leads with a resistance of 10 kO at 25°C and a beta value of 3950 K (B25/50 type), providing excellent temperature sensitivity and non-linear resistance characteristics. The thermistor exhibits fast thermal response and is housed in an epoxy sealed package with radial lead configuration, featuring lead wire dimensions of 1.3–2.3 mm (A), 5.0–7.0 mm (B), 2.0–4.0 mm (C), and 0.28–0.38 mm (D), with an overall lead length of 35–45 mm. It is widely used in industrial process control, HVACR systems, battery management, uninterruptible power supplies, medical devices, and IoT applications where reliable temperature monitoring is essential.