1

littelfuse.com

© 2018 Littelfuse, Inc. Revised: March 2, 2018

Specifications are subject to change without notice.

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

Description

Littelfuse offers Stainless probe assemblies suitable for a wide

range of temperature sensing applications. If the dimensions and

electrical characteristics on this product won’t work for your

requirements, please contact us for further assistance.

Dimensions

Dimensions in inches.

Threaded

Thermistor Probes and Assemblies

A

B

C

D

E

3.00”

± 0.500”

0.250”

± 0.030”

0.120”

± 0.025”

Strip:

0.250”

± 0.070”

0.3125”

± 0.017”

(Over Hex

Flats)

USP12840 Thermistor Probe

Features

Hex Head

Lead Wire

Temperature

0.3125"

HEX

0.250"

0.120"

3.00”

STRIP: 0.250"

THERMISTOR ELEMENT POTTED IN

10/32 (RTH)THREADED STAINLESS

STEEL HEX HEAD SCREW

30 AWG, SINGLE CONDUCTOR,

SOLID CONDUCTOR, KYNAR INSULATED

0.3125"

± 0.017"

(OVER HEX

FLATS)

0.250"

± 0.030"

0.120"

± 0.025"

3.00”

± 0.500"

STRIP:

0.250"

± 0.070"

THERMISTOR ELEMENT POTTED IN

10-32 (RHT) THREADED STAINLESS

STEEL HEX HEAD SCREW

30 AWG (0.010" DIA), SINGLE CONDUCTOR,

SOLID CONDUCTOR, KYNAR INSULATED

A

E

C

B

D

A

B

C

D

E

Specifications

Part

Number

Resistance Ohms

@25°C

Resistance

Tol. ± % @ 25°C

R-T

Curve

Temperature

Coefficient

(% / °C) @ 25°C

Beta (K)

0-50°C

Temperature

Rating (°C)

USP12840

10000

1

J

-4.4

3892

-55 to +125

Part Numbering System

Note: Not all combinations of Part Number codes are available. Contact Littelfuse for details.

USP 12840

Thermistor

Probe

No Significance