Cernox packages

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
Read about Cernox gamma radiation test data

Cernox® thin film resistance cryogenic temperature sensors offer significant advantages over comparable bulk or thick film resistance sensors. The smaller package size of these thin film sensors makes them useful in a broader range of experimental mounting schemes, and they are also available in chip form. They are easily mounted in packages designed for excellent heat transfer, yielding a characteristic thermal response time much faster than possible, with bulk devices requiring strain-free mounting. Additionally, Cernox sensors have been proven very stable over repeated thermal cycling and under extended exposure to ionizing radiation.

Cernox packaging optionsCX-SD, CU/CU-HT, AA, BO, LR, CD, MT, ET, CO, CX-BR, CX-BG, CX-BC, High Reliability Series, temperature probes
Cernox lead extensions
Cernox temperature probes
ESD warning

CX-1010 – the ideal replacement for germanium RTDs

The CX-1010 is the first Cernox® designed to operate down to 100 mK, making it an ideal replacement for germanium RTDs. Unlike germanium, all Cernox models have the added advantage of being able to be used to room temperature. In addition, Cernox is offered in the incredibly robust Lake Shore SD package, giving researchers more flexibility in sensor mounting.


The Lake Shore SD package — the most rugged, versatile package in the industry

The SD package, with direct sensor-to-sapphire base mounting, hermetic seal, and soldered copper leads, provides the industry’s most rugged, versatile cryogenic temperature sensors with the best sample-to-chip connection. Designed so heat coming down the leads bypasses the chip, it can survive several thousand hours at 420 K (depending on model) and is compatible with most ultra-high vacuum applications. It can be indium soldered to samples without sensor calibration shift.

Typical Cernox® resistance

Typical Cernox resistance

Typical Cernox® sensitivity

Typical Cernox sensitivity

Typical Cernox® dimensionless sensitivity

Typical Cernox dimensionless sensitivity