Cryogenic Temperature Sensors

Temperature rangeStandard curveBelow 1 KCan be used in radiationPerformance in magnetic field
 Negative Temperature Coefficent RTDs
Cernox® Cernox® 0.10 K to 420 K Excellent above 1 K
Germanium 0.05 K to 100 K Not Recommended
Ultra-Low Temperature Rox™ ULT Rox sensor<0.01 K to 40 K Not recommended
Interchangable Rox™ Ruthenium Oxide <0.01 K to 40 KGood below 1 K*
Silicon Silicon 1.4 K to 500 K  Fair above 60 K
GaAlAs GaAlAs 1.4 K to 500 K   Fair
 Positive Temperature Coefficient RTDs
Platinum Platinum 14 K to 873 K Fair above 30 K
Rhodium-Iron Rhodium-Iron 1.4 K to 500 K  Not reccommended below 77 K
Capacitance Capacitance 1.4 K to 290 K   Excellent
Thermocouples Thermocouples 1.2 K to 1543 K  Fair
HR Series HRlogo 20 K to 420 K  Excellent

DT-670-SD features

  • Best accuracy across the widest useful temperature range—1.4 K to 500 K—of any silicon diode in the industry 
  • Tightest tolerances for applications from 30 K to 500 K of any silicon diode to date
  • Rugged, reliable Lake Shore  SD package designed to withstand repeated thermal cycling and minimize sensor self-heating
  • Conformance to standard Curve DT-670 temperature response curve
  • Variety of packaging options
DT-670E-BR features
  • Temperature range: 1.4 K to 500 K
  • Bare die sensors with the smallest size and fastest thermal response time of any silicon diode on the market today
  • Non-magnetic sensor
DT-621-HR features
  • Temperature range: 1.4 K to 325 K*
  • Non-magnetic package
  • Exposed flat substrate for surface mounting

*Calibrated down to 1.4 K, uncalibrated (Curve DT-670) to 20 K

TG-120-SD Features

  • Monotonic temperature response from 1.4 K to 500 K
  • Excellent sensitivity (dV/dT) at temperatures below 50 K
  • Relatively low magnetic field-induced errors
  • Rugged, reliable Lake Shore SD package designed to withstand repeated thermal cycling and minimize sensor self-heating
  • Variety of packaging options

TG-120-P Features

  • Temperature range: 1.4 K to 325 K
  • Reproducibility at 4.2 K: ±10 mK

TG-120-PL Features

  • Temperature range: 1.4 K to 325 K
  • Small mass for rapid thermal response

*Patent # 4,643,589, Feb 87, “Thermometry Employing Gallium Aluminum Arsenide Diode Sensor” Lake Shore Cryotronics, Inc.

Cernox® Features

  • Low magnetic field- induced errors
  • Temperature range of 100 mK to 420 K (model dependent)
  • High sensitivity at low temperatures and good sensitivity over a broad range
  • Excellent resistance to ionizing radiation
  • Bare die cryogenic temperature sensor with fast characteristic thermal response times: 1.5 ms at 4.2 K, 50 ms at 77 K
  • Broad selection of models to meet your thermometry needs
  • Excellent stability
  • Non-magnetic package options available (AA, BC, BG, BR)
  • Variety of packaging options

Temporarily unavailable — please consider Cernox® as an alternative.

Germanium Features

  • Recognized as a “Secondary Standard Thermometer”
  • High sensitivity provides submillikelvin control at 4.2 K and below
  • Excellent reproducibility better than ±0.5 mK at 4.2 K
  • Various models for use from 0.05 K to 100 K
  • Excellent resistance to ionizing radiation

RX-102B-RS Features

  • Useful below 10 mK; calibrations down to 10 mK available
  • Include additional extrapolated points to 5 mK
  • Optical shielding reduces unwanted sensor heating

RX-102B-CB Features

  • Useful down to 10 mK; calibrations down to 20 mK available
  • Leads thermally anchored to package body

RX-102A Features

  • Standard curve interchangeable
  • Good radiation resistance
  • Useful down to 50 mK
  • Low magnetic field-induced errors

RX-202A Features

  • Standard curve interchangeable
  • Good radiation resistance
  • Monotonic from 50 mK to 300 K
  • 4× improvement in magnetic field-induced errors over other ruthenium oxides

RX-103A Features

  • Standard curve interchangeable
  • Good radiation resistance
  • Best choice for interchangeability from 1.4 K to 40 K
  • Low magnetic field-induced errors

Capacitance Features

  • Virtually no magnetic field-induced errors
  • Capable of mK control stability in the presence of strong magnetic fields
  • Monotonic in C versus T to nearly room temperature

*Patent #3,649,891, exclusively assigned to Lake Shore Cryotronics, Inc.

Thermocouple Features

Type E (Chromel-Constantan)

Has the highest sensitivity among the three standard thermocouple types typically used at low temperatures (types E, K, and T). The best choice for temperatures down to 40 K.

Type K (Chromel-Alumel)

Recommended for continuous use in inert atmospheres. Has a sensitivity of 4.1 mV/K at 20 K (about ½ of Type E). 

Platinum Features

  • Temperature range: 14 K to 873 K (model dependant)
  • Conforms to IEC 751 standards down to 70 K
  • High reproducibility: ±5 mK at 77 K
  • Low magnetic field dependence above 40 K
  • Excellent for use in ionizing radiation
  • SoftCal™ calibration available
  • Non-magnetic packages available (all PT-102 and PT-103 variants)
Features of the HR Series Sensors
  • Full material traceability for 15 years
  • Resistance and sensitivity data available for all sensors
  • Reduce lead time
  • Gain confidence from our test protocol
  • No hidden costs—pay only for the sensors you buy