SD-179 Temperature Sensor

High-precision cryogenic temperature measurement for demanding applications.

SD-179 Temperature Sensor

Precision Temperature Measurement

The SD-179 silicon diode temperature sensor delivers exceptional accuracy and reliability for cryogenic temperature measurements, making it ideal for critical applications where precision is paramount.

Wide Temperature Range

Designed to operate effectively across a broad temperature range, the SD-179 provides consistent and accurate measurements throughout your entire experimental or operational temperature window.

Robust Construction

Built with durability in mind, the SD-179 features robust construction that ensures reliable performance in demanding cryogenic environments while maintaining measurement stability.

Technical Specifications

Sensor Type Diode-connected bipolar junction transistor
Recommended excitation 10 µA
Maximum Reverse Voltage 50 V
Interchangeability SD-179 Standard Response Curve
Repeatability Better than ±5 mK at 4.2 K
Temperature Response [V]
1.5 | 4.2 K | 77.4 K | 273.2 K
1.89 | 1.79 | 1.03 | 0.63
Accuracy Group [±K]
2-100 K | 100-300 K | 300-450 K
A′ ±0.15 | ±0.25 | ±0.25
A ±0.25 | ±0.5 | ±0.5
B ±0.5 | ±0.5 | ±1
C ±1 | ±1 | ±2
Standard Housing Miniature TO-type probe, gold-plated OFHC copper, dim. 0.2 in (L) × 0.1 in (dia.)
Optional Housings Bobbin, gold-plated OFHC copper
Al2O3 surface mount w/ back metallization
Range of Use 1.5 K to 400 K