Temperature sensing and control is a critical requirement in applications like furnaces, boilers, HVAC and in industrial processes like chemical, petrochemical, oil & gas, and food processing/manufacturing.

Thermocouples are widely used in these applications for temperature sensing. They work on the principle of Seebeck effect, where two different metal wires are joined together, and this junction generates a voltage proportional to the temperature. The most common thermocouple types or thermocouple calibrations available are B, E, J, K, N, R, S, T & C. Each of these types have a specified temperature range in which they can be used. Thermocouples are available in various form factors like immersion probes, surface probes, air probes, bulkhead probes etc. Thermocouple wires, thermocouple extension wires and thermocouple connectors are important accessories that are used along with thermocouples.

Thermocouple wires are used to connect the sensor to the measuring instrument or temperature controller/transmitter. Thermocouple extension wires are used to extend the distance between the sensor and the measuring instrument or controller/transmitter. Thermocouple connectors are used to provide a secure and reliable connection between the thermocouple wires/extension wires and the measuring instruments. Thermocouple connectors are available in standard and miniature versions with 2-terminal connectors being the most used.

Application temperature, degree of accuracy in measurement, resistance to harsh environments, thermocouple wires, thermocouple extension wires and thermocouple connectors are the key factors based on which a thermocouple type is selected.

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Measured Temperature Min
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Length - Metric
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Measured Temperature Max
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Lead Length - Imperial
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Probe Length - Imperial
Probe Length - Metric
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24M4271

RoHS

Each
1+
$59.190
10+
$53.000
25+
$51.520
50+
$48.680
100+
$45.500
More Pricing...
Min: 1 / Mult: 1
-
K
-
-
-
-
-
-
-
-
-
1100°C
-
Stainless Steel
6.6ft
-
-
2m
9.84"
250mm
0.06"
1.5mm
-
Bare Wire
IEC
Shielded
MA-ISK Series
69C6854

RoHS

Each
1+
$25.580
10+
$24.430
25+
$22.610
50+
$20.700
100+
$18.060
More Pricing...
Min: 1 / Mult: 1
-
J
-
-
-
-
-
-60°C
-
-
-
350°C
-
-
6.6ft
-
-
2m
-
-
-
-
Glassfiber
Bare Wire
IEC
Unshielded
-
68C2611

RoHS

Each
1+
$23.800
10+
$22.720
25+
$21.030
50+
$19.260
100+
$16.800
More Pricing...
Min: 1 / Mult: 1
-
K
-
-
-
-
-
-75°C
-
-
-
260°C
-
-
6.6ft
-
-
2m
-
-
-
-
PTFE
Bare Wire
IEC
Unshielded
-
02M0853
Each
1+
$27.800
Min: 1 / Mult: 1
-
K
-
3m
-
1.5mm
-
-75°C
-
-
-
250°C
-
-
118.11"
-
-
3m
-
-
0.05"
1.5mm
PTFE
Standard Connector
-
Insulated
-
93F9265

RoHS

Each
1+
$95.500
Min: 1 / Mult: 1
Plug
J
-
-
-
-
-
0°C
-
-
-
480°C
-
Stainless Steel
60"
-
-
1.52m
2"
50.8mm
0.187"
4.75mm
Fiberglass
Spade Lugs
-
Shielded
-
39T9924

RoHS

Each
1+
$69.560
Min: 1 / Mult: 1
-
J
-
-
-
-
-
-
-
-
-
-
-
Stainless Steel
-
-
-
-
6"
152.4mm
0.125"
3.18mm
-
-
-
-
M8M Series
68C2612

RoHS

Each
1+
$14.140
10+
$13.220
25+
$12.180
50+
$11.150
100+
$10.150
More Pricing...
Min: 1 / Mult: 1
-
T
-
-
-
-
-
-75°C
-
-
-
260°C
-
-
3.3ft
-
-
1m
-
-
-
-
PTFE
Bare Wire
IEC
Unshielded
-
30AC8037

RoHS

Date/Lot Code

Each
1+
$171.150
Min: 1 / Mult: 1
-
K
-
4"
-
0.25"
-
0°C
Stainless Steel
-
-
900°C
-
304 Stainless Steel
-
-
-
-
4"
101.6mm
0.25"
6.35mm
-
Standard Connector
-
Shielded
-
30AC8564

RoHS

Date/Lot Code

Each
1+
$62.970
Min: 1 / Mult: 1
-
K
-
-
-
-
-
0°C
-
-
-
482°C
-
-
60"
-
-
1.5m
-
-
-
-
Fiberglass
Wire Leaded
ANSI
-
WT Series
30AC8651

RoHS

Date/Lot Code

Pack of 5
1+
$121.800
Min: 1 / Mult: 1
-
K
-
-
-
-
-
0°C
-
-
-
482°C
-
-
36"
-
-
1m
-
-
-
-
Fiberglass
Wire Leaded
ANSI
Unshielded
5TC Series
30AC8716

Date/Lot Code

Each
1+
$366.170
Min: 1 / Mult: 1
-
K
-
-
-
-
-
0°C
-
-
-
250°C
-
Stainless Steel
60"
-
-
1.524m
-
-
0.25"
6.35mm
TPE
Miniature Connector
ANSI
Unshielded
-
30AC7940

RoHS

Each
1+
$120.340
Min: 1 / Mult: 1
-
K
-
-
-
-
-
0°C
-
-
-
26°C
-
-
120"
-
-
3m
-
-
-
-
PFA
Miniature Connector
ANSI
Unshielded
HSTC Series
30AC8583

RoHS

Date/Lot Code

Each
1+
$227.120
Min: 1 / Mult: 1
-
K
-
-
-
-
-
0°C
-
-
-
980°C
-
-
120"
-
-
3m
-
-
-
-
Nextel
Miniature Connector
ANSI
-
XCIB Series
30AC8394

RoHS

Pack of 5
1+
$243.810
Min: 1 / Mult: 1
-
T
-
-
-
-
-
0°C
-
-
-
150°C
-
-
40"
-
-
1m
-
-
-
-
PFA
Miniature Connector
ANSI
Unshielded
SA1 Series
30AC7947

RoHS

Date/Lot Code

Each
1+
$146.200
Min: 1 / Mult: 1
-
T
-
-
-
-
-
0°C
-
-
-
200°C
-
-
80"
-
-
2m
-
-
-
-
PFA
Miniature Connector
ANSI
Unshielded
HSTC Series
30AC8628

RoHS

Date/Lot Code

Pack of 5
1+
$313.270
Min: 1 / Mult: 1
-
K
-
-
-
-
-
0°C
-
-
-
260°C
-
-
120"
-
-
3m
-
-
-
-
PFA
Miniature Connector
ANSI
Unshielded
5SRTC Series
30AC7946

RoHS

Each
1+
$113.830
Min: 1 / Mult: 1
-
T
-
-
-
-
-
-
-
-
-
250°C
-
-
36"
-
-
900mm
-
-
-
-
-
-
-
-
HSTC Series
30AC8675

RoHS

Date/Lot Code

Pack of 5
1+
$155.100
Min: 1 / Mult: 1
-
K
-
-
-
-
-
0°C
-
-
-
260°C
-
-
36"
-
-
914.4mm
-
-
-
-
PFA
Stripped Leads
ANSI
Unshielded
5TC Series
30AC8595

RoHS

Pack of 5
1+
$280.210
Min: 1 / Mult: 1
-
J
-
-
-
-
-
0°C
-
-
-
260°C
-
-
80"
-
-
2m
-
-
-
-
PFA
Miniature Connector
ANSI
Unshielded
5SC Series
30AC7779

RoHS

Date/Lot Code

Pack of 5
1+
$64.570
Min: 1 / Mult: 1
-
K
-
-
-
-
-
-
-
-
-
-
-
-
12"
-
-
300mm
-
-
-
-
-
-
-
-
CHAL Series
30AC7777

RoHS

Date/Lot Code

Pack of 5
1+
$145.550
Min: 1 / Mult: 1
-
K
-
-
-
-
-
-
-
-
-
-
-
-
12"
-
-
300mm
-
-
-
-
-
-
-
-
CHAL Series
30AC7996

RoHS

Each
1+
$94.750
Min: 1 / Mult: 1
-
-
-
6"
-
0.125"
-
-
Stainless Steel
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
MTSS Series
30AC8606

RoHS

Date/Lot Code

Pack of 5
1+
$304.680
Min: 1 / Mult: 1
-
T
-
-
-
-
-
0°C
-
-
-
150°C
-
-
80"
-
-
2m
-
-
-
-
PFA
Miniature Connector
ANSI
Unshielded
5SC Series
30AC8681

RoHS

Pack of 5
1+
$223.090
Min: 1 / Mult: 1
-
K
-
-
-
-
-
0°C
-
-
-
260°C
-
PFA
-
-
-
-
72"
1.829m
0.005"
0.13mm
PFA
Wire Leaded
ANSI
Unshielded
5TC Series
30AC8409

RoHS

Pack of 5
1+
$441.950
Min: 1 / Mult: 1
-
K
-
-
-
-
-
0°C
-
-
-
315°C
-
-
120"
-
-
3m
-
-
-
-
Fiberglass
Miniature Connector
ANSI
Unshielded
SA1XL Series
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