NRCE154J4200B1KS is an epoxy sealed radial lead NTC thermistor designed for temperature sensing and compensation applications. It features a zero power resistance of 15,000 O at 25°C with a resistance tolerance of ±5% (J) and a B value of 4200 (B25/50) with ±10% tolerance. The thermistor offers a maximum power rating of 450 mW at 25°C, a dissipation factor of approximately 4.5 mW/°C, and a thermal time constant of approximately 20 seconds. Operating over a wide temperature range of -40°C to +125°C, this 5 mm disk type thermistor is suitable for industrial process control, HVAC/R systems, battery management, consumer appliances, and medical devices.