Leaded Thermistors
Interchangeable Thermistor
PW Series Precision Interchangeable Thermistors
Description
Littelfuse precision interchangeable thermistors are low cost,
highly accurate, stable devices designed specifically for
temperature sensing and control applications. They are particularly
suited for uses where their precision interchangeability eliminates
the necessity for costly individual circuit calibration.
Options
• Non-standard
• Special encapsulants or
probe housings
resistance values
and tolerances
• Special lead materials
and lengths
Features
Dimensions
EPOXY
COATING
A
TINNED ALLOY WIRE
C
• Fast thermal response
• High stability
• Low cost
• Long life
• Small size
• R/T Curve-matched
PW 10 2 E 3
A
B
Dimensions shown in inches.
30 AWG
B(0.010")
30 AWG
0.010”
• Epoxy encapsulated
Part Numbering System
B
A
• High accuracy
Series
C
Resistance @ 25ºC
Base Value
0.095"
1.5"
MAX C Min
0.095”
Max
R-T Curve
Multiplier, power of 10
1.5”
Min
Ex. 102 = 10 Ω x 102 = 1,000 Ω
PRECISION INTERCHANGEABLE THERMISTORS
30 AWG (0.010")
TINNED COPPER ALLOY WIRE
No Significance
Note: Not all combinations of Part Number codes are available. Contact Littelfuse for details.
EPOXY
COATING
0.095"
MAX
1.5"
MIN
© 2021 Littelfuse, Inc. Revised: March 23, 2021
Specifications are subject to change without notice.
1
littelfuse.com
Leaded Thermistors
Interchangeable Thermistor
PW Series Precision Interchangeable Thermistors
Specifications
Beta (K)
0-50°C
Dissipation
Constant,
Nominal
(mW/°C)
Thermal
Time
Constant,
Max. - Still
Air
(seconds)
Thermal
Time
Constant,
Max. - Well
Stirred Oil
(seconds)
Temperature
Rating
(°C)
Storage &
Operation
Temp for Best
L/T Stability
(°C)
Part
Number
Resistance
Ohms
@25°C
Accuracy
(±°C)
0-70°C
R-T
Curve
Temperature
Coefficient
(% / °C)
@ 25°C
PW102E3
1000
±0.5°C
E
-3.67
3263
1
10
1
-80 to +150
-80 to +120
PW102J2
1000
±0.5°C
J
-3.67
3892
1
10
1
-80 to +150
-80 to +120
PW222J2
2252
±0.5°C
J
-4.4
3892
1
10
1
-80 to +150
-80 to +120
PW302J2
3000
±0.5°C
J
-4.4
3892
1
10
1
-80 to +150
-80 to +120
PW502J2
5000
±0.5°C
J
-4.4
3892
1
10
1
-80 to +150
-80 to +120
PW602J2
6000
±0.5°C
J
-4.4
3892
1
10
1
-80 to +150
-80 to +120
PW103G2
10000
±0.5°C
G
-4.04
3575
1
10
1
-80 to +150
-80 to +120
PW103J2
10000
±0.5°C
J
-4.4
3892
1
10
1
-80 to +150
-80 to +120
PW203J2
20000
±0.5°C
J
-4.4
3892
1
10
1
-80 to +150
-80 to +120
PW303J2
30000
±0.5°C
J
-4.4
3892
1
10
1
-80 to +150
-80 to +120
PW503J2
50000
±0.5°C
J
-4.4
3892
1
10
1
-80 to +150
-80 to +120
PW503R2
50000
±0.5°C
R
-4.68
4140
1
10
1
-80 to +150
-80 to +120
PW104J2
100000
±0.5°C
J
-4.4
3892
1
10
1
-80 to +150
-80 to +120
PW104R2
100000
±0.5°C
R
-4.68
4140
1
10
1
-80 to +150
-80 to +120
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
© 2021 Littelfuse, Inc. Revised: March 23, 2021
Specifications are subject to change without notice.
2
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