Thermistors deliver long-term stability and reliability for automotive and industrial applications

Ametherm has a new series of glass-encapsulated thermistors that provide long-term stability and reliability for high-accuracy temperature sensing in automotive and industrial applications. Hermetically sealed, DG series devices eliminate errors in resistance readings due to moisture penetration while offering high operating temperatures and a compact size. The devices released today provide designers with faster, more accurate, and less expensive alternatives to thermocouples and RTD probes. The series devices are free from limitations due to solder temperature, which enables them to offer users a wide operating temperature range of -55C to +200C. With diameters of only 1.5mm, the devices boast a small size that allows for encapsulation in a variety of housings, such as ring lugs and hex nuts. The thermistors are available in four resistance values at 25C - 10kohm, 40kohm, 50kohm, and 100kohm - with tolerances down to ±2%, a dissipation constant of 3mW/C, and thermal time constant of 6s. The devices provide TCRs of -3.9%/C, -4.4%/C, and -4.75%/C; beta values of 3500K, 3950K, and 4200K; and 32AWG dumet wire leads.