Thermistor Probes and Assemblies
Laboratory Grade Temperature Probe
USP3121 Thermistor Probe
Description
Littelfuse offers Aluminum probe housings suitable for a wide
range of temperature sensing applications. If the dimensions on
this product won’t work for your requirements, please contact us
for further assistance.
Features
6-32 Thread
ꢁ25°C Max Operating
Temperature
•
•
•
Kynar Insulated
Lead Wire
Dimensions
Part Numbering System
USP 3121
30 AWG (0.010" DIA), SOLID CONDUCTOR,
SINGLE CONDUCTOR,
KYNAR INSULATED LEAD WIRES
F
C
A
E
Thermistor
Probe
D
B
THERMISTOR ELEMENT
POTTED IN WELL OF
ALUMINUM HEX HOUSING
No Significance
Note: Not all combinations of Part Number codes are available. Contact Littelfuse for details.
Dimensions in inches.
A
B
C
0.250”
0.0ꢀ0”
Strip
3.00”
0.3ꢀ5
0.3ꢀ5”
0.0ꢁ5”
D
E
F
6/32
Thread
(RHT)
0.250”
0.0ꢁ5”
0.250”
0.00ꢀ
Specifications
Temperature
Coefficient
(ꢀ / °C) @ 25°C
Part
Number
Resistance
Ohms @25°C
Resistance
Tol. ꢀ @ 25°C
R-T
Curve
Beta (K)
0-50°C
Temperature
Rating (°C)
USP3ꢁ2ꢁ
ꢁ0000
5
J
-4.4
3892
-55 to +ꢁ25
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each
product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at:
www.littelfuse.com/disclaimer-electronics
© 2018 Littelfuse, Inc. Revised: March 2, 2018
littelfuse.com
1
Specifications are subject to change without notice.