Type J Thermocouple,Temperature Sensor
Type J Thermocouple,Temperature Sensor
Key Features
Temperature range: -40°C to 750°C (continuous), up to 900°C for short-term use
High measurement accuracy with stable long-term performance
Mineral insulated (MgO) sheathed construction for excellent insulation and durability
Fast response time for precise temperature control
Good resistance to vibration and suitable for industrial environments
Performs well in reducing, inert, and vacuum atmospheres
Compatible with standard temperature controllers, PLCs, and data acquisition systems
- Customizable probe length, diameter, sheath material, mounting type, and connector
- CE, RoHS, ISO certified for global industrial applications
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Type J Thermocouple – Iron Constantan Temperature Sensor for Industrial Applications
The Type J thermocouple is a reliable and cost-effective temperature sensor designed for medium-temperature industrial applications. Made from Iron–Constantan (Fe-CuNi) conductors and protected by a mineral-insulated sheath, it provides accurate and stable temperature measurement in demanding industrial environments.
Compliant with international standards including IEC 60584 and ASTM E230, our Type J thermocouples are widely used in plastic processing, food equipment, HVAC systems, packaging machinery, and general industrial heating processes.
Key Features of Type J Thermocouple
Temperature measurement range: -40°C to 750°C (continuous)
Short-term temperature capability up to 900°C
High-quality Iron / Constantan conductors for stable signal output
MgO mineral insulated (MI) construction for fast response and excellent electrical insulation
Laser-welded, hermetically sealed sensing tip for moisture and vibration resistance
Low thermal drift for long service life
Suitable for reducing, inert, and vacuum environments
Strong anti-interference performance for industrial applications
Flexible, bendable structure with high mechanical strength
Compatible with standard temperature controllers, PLCs, and data acquisition systems
CE and RoHS certified
Customizable probe diameter, length, sheath material, mounting thread, and connector type
Typical Applications
Type J thermocouples are commonly used in:
Plastic and rubber machinery
Food processing equipment
Packaging machines
HVAC systems
Industrial ovens and heaters
Laboratory and test equipment
Heat treatment and thermal control systems
Type J Thermocouple Specifications
| Parameter | Specification |
| Thermocouple Type | Type J (Iron–Constantan) |
| Standards | IEC 60584, ANSI/ASTM E230 |
| Temperature Range | -40°C to +750°C |
| Max Temperature | 900°C (short-term) |
| Accuracy Class 1 | ±1.5°C or ±0.4% |
| Accuracy Class 2 | ±2.5°C or ±0.75% |
| Insulation | MgO Mineral Insulated |
| Sheath Materials | SS304, SS310, Inconel 600 |
| Probe Diameter | 1.0–6.0 mm |
| Response Time | t0.5 < 1s |
| Protection Level | IP65 (IP68 optional) |
| Installation | Threaded / Flanged / Welded / Plug-in |
Why Choose Huada Type J Thermocouples?
With over 20 years of manufacturing experience, we provide high-quality thermocouples for global industrial customers.
Monthly capacity: 50,000+ units
Sample lead time: 3–7 days
Mass production: 7–15 days
Factory direct pricing
Strict quality control and full calibration
Fast technical support within 12 hours
Full OEM & custom design available
Our products are designed for long service life, stable performance, and reduced maintenance costs in industrial environments.
Related Products
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Strict Production Process
Engineers develop optimized electronic circuits and structural designs based on real application needs.
High-quality components and materials are carefully selected from trusted suppliers to ensure long-term reliability.
Automated SMT and precision soldering technologies are used to build stable and high-performance circuit boards.
Sensor elements or connector terminals are assembled with the PCB and housing to ensure accurate operation and strong mechanical stability.
Each product undergoes strict calibration and functional testing to guarantee accuracy and stable performance.
Every unit is carefully inspected, labeled, and securely packaged to ensure it arrives safely and performs reliably for your applications.
Strict Production Process of Yafeite
