NTC Type BR Glass Encapsulated Bead Thermistors Amphenol Advanced Sensors NTC Type BR Glass Encapsulated Bead Thermistors are unaffected by severe environmental exposures, making them suitable for a wide range of measurement, control, and compensation applications. These thermistors feature fast thermal response times, and the rugged glass encapsulation provides hermetic sealing and a better strain relief than other glass-coated bead thermistors. Normal operating / storage temperatures range from -80°C to +105°C for material system E0, +200°C for A1 through A4, and +300°C for A5 through D17. Intermittent operation to +600ºC is permissible, but stability will be downgraded. Amphenol NTC Type BR Glass Encapsulated Bead Thermistors are suitable for temperature measurement, control, or compensation, and self-heated applications.