Type TH
Specifications
Glass encapsulated radial lead thermistor
Recommended
• The tolerance of resistance is ±5% for
standard device
Maximum
Permissible
Current at
77°F (25ºC)
ß
Maximum
Operating
Current
Part
Number
Resistance
(25 Ω )
Constant
(25/50)
• The tolerance of B constant is ±2% for
standard device The constant is determined by
the equation:
at 77°F (25ºC)
TH220J33G 2.0 K
TH225J13G 2.545 K
TH238J34G 3.896 K
TH253J34G 5.369 K
TH310J34G 10.74 K
TH310J36G 10.0 K
TH310J39G 10.0 K
TH315J39G 15.0 K
TH320J39G 20.0 K
TH349J39G 49.12 K
TH350J39G 50.0 K
TH398J40G 98.63 K
TH410J40G 100.0 K
TH420J34G 200.0 K
TH423J41G 231.4 K
TH510J44G 1,000 K
TH513J44G 1,388 K
3375 K
3745 K
3434 K
3434 K
3434 K
3684 K
3933 K
3933 K
3952 K
3952 K
3952 K
4014 K
4014 K
3450 K
4176 K
4491 K
4491 K
0.22 mA
0.22 mA
0.20 mA
0.16 mA
0.13 mA
0.14 mA
0.14 mA
0.12 mA
0.10 mA
0.06 mA
0.06 mA
0.045 mA
0.045 mA
0.015 mA
0.015 mA
0.007 mA
0.005 mA
30.0 mA
30.0 mA
26.5 mA
24.0 mA
20.0 mA
20.0 mA
20.0 mA
17.0 mA
15.0 mA
10.0 mA
10.0 mA
5.0 mA
B = 3853.9 In (R25/R50)
R25 and R50 represent the thermistor
resistance at 77°F and 122°F (25°C and 50°C)
respectively
• Others: For non-standard devices, consult
Thermometrics
Dissipation
Factor
(in still air)
Time
Constant
(in still air)
Operating
Temperature
Range
Rated Power
at 77°F (25ºC)
-40°F to 482°F
(-40°C to 250ºC)
5.0 mA
2.0 (mW/ºC)
25 (seconds)
25 mW
3.5 mA
3.5 mA
1.5 mA
1.0 mA
1.02 in (26 mm)
minimum
Ø 0.08 in (2 mm)
maximum
0.17 in (4.2 mm)
maximum
1.02 in (26 mm)
minimum
Ø 0.02in (0.5 mm) maximum
NTC Type TH dimensions
6
AMPHENOL [ Amphenol ]
