CRYOGENIC TEMPERATURE SENSORS

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Capacitance

Specifications

Standard curve Not applicable

Nominal capacitance 6.1 nF

Nominal sensitivity 26 pF/K

Accuracy (interchangeability)
Not applicable

Accuracy (calibrated) Calibration should be performed in situ

Recommended excitation 1 to 5 kHz, 0 to 7 V peak to peak or any other acceptable capacitance measuring method

Dissipation at recommended excitation
Not applicable

Expected long-term stability ±1.0 K/yr

Thermal response time Minutes, dominated by electronic setting time

Radiation effects Not available

Magnetic fields See table on right

Reproducibility Click here for detailed discussion

Range of Use

	Minimum Limit	Maximum Limit
CS-501GR	1.4 K	290 K

Typical Magnetic Field-Dependent Temperature Errors¹ ΔT/T (%) at B (magnetic induction)

Package Parallel to Field B
T(K)	18.7 T
4.2	-0.15
77	<0.05
¹ Recommended for control purposes; monotonic in C vs T to nearly room temperature frequency dependent


Physical Specifications
	Dimensions	Mass	Lead type	Internal atmosphere
CS-501GR	3.0 mm × 8.5 mm long	260 mg	2 phosphor bronze with heavy build polyimide attached with epoxy strain relief at sensor	Air

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