DT-470 Silicon Diode temperature sensor

Interchangeable The DT-470 silicon diode temperature sensors incorporate remarkable uniform sensing elements that exhibit precise, repeatable, monotonic temperature response over a wide range. The elements are mounted into rugged, hermetically-sealed packages that have been specifically designed for proper thermal behavior in a cryogenic environment. The result is a family of sensors with temperature characteristics so predictable, tightly grouped and stable, that the sensors in most applications can be routinely interchanged with one another.

Repeatable The small silicon chip in each sensor has a temperature characteristic that is extremely stable and predictable. The -SD sensor package is designed to withstand repeated cycling to low temperatures without mechanical failure. Repeatability at 4.2 K over repeated thermal cycling from room temperature to helium temperature is typically ± 10 mK or better. Repeatability from 1.4 K to 330 K is typically better than ± 20 mK. For long term stability, see the specifications.

Accurate All DT-470 silicon diodes follow a standard temperature response curve, Curve 10 (See the Reference Section). For the DT-470 diodes, five tolerance bands are offered to allow sensor selection that will meet both technical and economic requirements. Within these five bands, low temperature accuracies of ± 0.25 K, ± 0.5 K and ± 1 K are available. For more demanding requirements, DT-470 diodes can be used with SoftCal or these sensors can be calibrated to accuracies of ± 50 mK or better.

Lake Shore Cryotronics, Inc., 575 McCorkle Blvd., Westerville, OH 43082. Tel: 614-891-2244; Fax: 614-818-1600.