
Our Type T Mineral Insulated (MI) Thermocouple Cable is your go-to solution for ultra-low temperature environments, especially in cryogenic applications. Built with a copper (positive) and constantan (negative) alloy, this cable is designed to deliver top-notch stability and accuracy in extreme conditions, from -270°C to 370°C. The mineral insulation, typically high-purity magnesium oxide (MgO), ensures excellent dielectric strength and durability, making it perfect for harsh settings like cryogenics, laboratories, and specialized industrial processes. Whether you're monitoring liquid helium systems or ultra-low freezers, our Type T MI cable provides reliable temperature measurements with a sensitivity of about 43 µV/°C, ensuring you get precise data every time.
Industry Analysis
The thermocouple industry is seeing steady growth, driven by the increasing demand for precise temperature monitoring in sectors like aerospace, medical, and energy. Cryogenic applications, in particular, are on the rise due to advancements in quantum computing, medical imaging, and LNG (liquefied natural gas) processing. According to recent market insights, the global thermocouple market is expected to grow at a CAGR of around 5% through 2030, with a strong focus on low-temperature solutions like Type T cables. Industries are prioritizing sensors that can handle extreme conditions without sacrificing accuracy, and mineral-insulated cables are gaining traction for their durability and resistance to environmental stressors like radiation and corrosion. The push for automation and real-time data in industrial processes is also fueling demand, making our Type T MI cable a critical component in next-gen applications.
Electrical Performance
| Parameter | Low-Voltage Cable (0.6/1kV) | Medium-Voltage Cable (6~35kV) | High-Voltage Cable (110kV Min) |
| Rated Voltage (U₀/U) | 0.6/1 kV | 6/10-26/35 kV | ≥110 kV |
| Insulation Resistance (MΩ·km) | ≥100 | ≥200 | ≥500 |
| AC Voltage Withstand (kV) | 3.5 | 21~52 | ≥160 |
| DC Resistance of Conductor (Ω/km) | Compliance to IEC standards | Compliance to IEC standards | Compliance to IEC standards |
Mechanical Performance
| Performance Indicator | Steel Tape Armored | Steel Wire Armored | Aluminum Tape/Stainless Steel Armored |
| Tensile Strength (N/mm²) | 300-500 | 400-600 | 150-250 |
| Compression Performance (N) | ≥3000 | ≥1500 | ≥1000 |
| Minimum Bend Radius | 6×Cable Outer Diameter | 10×Cable Outer Diameter | 8×Cable Outer Diameter |
Thermal Performance
| Working Temperature Range (°C) | -40 to +90(Standard Insulation) |
| Short-Circuit Temperature (5s) (°C) | 160~250(depending on material) |
| Flame Retardant Performance | Compliace to IEC 60332 Standard |
Our Type T MI Thermocouple Cable shines in a variety of ultra-low temperature settings:
Cryogenics: Perfect for monitoring liquid nitrogen or helium systems in research facilities or quantum computing setups.
Medical and Pharmaceutical: Used in ultra-low freezers for vaccine storage and laboratory equipment for precise temperature control.
Aerospace: Ensures accurate temperature readings in satellite testing and space simulation chambers.
Food and Beverage: Maintains consistent monitoring in cold storage and processing environments.
Energy: Supports LNG processing and geothermal systems where low temperatures are critical.
Research Labs: Ideal for materials science and physics experiments requiring stable, sub-zero measurements.
Its non-magnetic properties and high stability at sub-zero temperatures make it a versatile choice across these industries, ensuring reliable performance where precision matters most.
Company Comparison
When it comes to Type T MI Thermocouple Cables, we stand out from the competition. Our cables are crafted with premium-grade copper and constantan alloys, paired with high-purity MgO insulation, ensuring superior accuracy and longevity. Unlike others in the market, we prioritize full traceability with 3.1 material certificates, giving you confidence in every batch. Our cables are designed for flexibility, with a bending radius twice the sheath diameter, making installation a breeze even in complex setups. We also offer custom lengths and diameters to fit your specific needs, backed by a multilingual support team and 24/7 access to our online stock portal. While others may cut corners on insulation or calibration, we adhere to strict IEC 60584 Class 1 standards, delivering unmatched reliability for your cryogenic applications.
Comparison Parameters Table
Parameter | Type T MI Thermocouple Cable | Other Thermocouple Cables |
|---|---|---|
Temperature Range | -270°C to 370°C | Varies (e.g., Type K: -270°C to 1260°C) |
Accuracy (Class 1) | ±0.5°C or 0.4% (-40°C to 350°C) | Varies (e.g., Type K: ±1.5°C or 0.4%) |
Sensitivity | ~43 µV/°C | Varies (e.g., Type E: ~68 µV/°C) |
Insulation | High-purity MgO | PVC, PFA, or fiberglass (less durable) |
Durability | High (resists corrosion, radiation) | Moderate to high (depends on type) |
Bending Radius | 2x sheath diameter | Varies, often less flexible |
Applications | Cryogenics, medical, aerospace | General-purpose, high-temperature |
Non-Magnetic | Yes | Varies (e.g., Type K has magnetic leg) |
High Precision: Achieves ±0.5°C or 0.4% accuracy in the -40°C to 350°C range, with special limits of error (SLE) options for even tighter tolerances.
Durability: MgO insulation ensures long-term stability in harsh environments, resisting corrosion and radiation.
Customization: Tailored cable lengths, diameters (0.5mm to 8.0mm), and sheath materials to suit your application.
Ease of Installation: Flexible design with a tight bending radius for seamless integration into tight spaces.
Global Standards Compliance: Fully traceable and calibrated to IEC 60584 Class 1 and ASTM E230 special limits for consistent performance.
Versatile Applications: Excels in cryogenics, medical, aerospace, and more, with non-magnetic properties for sensitive environments.




About Us:
Our 12,000㎡ factory is equipped with complete capabilities for research, production, testing, and packaging. We strictly adhere to ISO 9001 standards in our production processes, with an annual output of 1,200 tons. This ensures that we meet both quantity and quality demands. Furthermore, all products undergo rigorous simulated environment testing including high temperature, high pressure, and corrosion tests before being dispatched, ensuring they meet customer specifications.
For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.

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FAQs
What is a Type T MI Thermocouple Cable?
A Type T MI Thermocouple Cable is a temperature sensor cable with copper and constantan conductors, insulated with magnesium oxide, designed for ultra-low temperature measurements in cryogenic applications.What temperature range can it handle?
It operates reliably from -270°C to 370°C, making it ideal for cryogenic and low-temperature environments.What industries use Type T MI cables?
Aerospace, medical, pharmaceutical, food and beverage, energy, and research labs commonly use these cables.How accurate is the Type T MI cable?
It offers ±0.5°C or 0.4% accuracy in the -40°C to 350°C range, with tighter tolerances available for special limits of error (SLE).Why choose mineral-insulated over standard cables?
Mineral insulation (MgO) provides superior durability, high dielectric strength, and stability in extreme conditions compared to standard cables.Can it be customized?
Yes, we offer custom lengths, diameters, and sheath materials to meet specific application needs.Is it suitable for harsh environments?
Absolutely, its MgO insulation and robust sheath make it resistant to corrosion, radiation, and mechanical stress.What standards does it meet?
Our cables comply with IEC 60584 Class 1 and ASTM E230 special limits, ensuring global compatibility and reliability.
Why Choose Us?
Our Type T MI Thermocouple Cable is engineered for precision and built to last, giving you peace of mind in the most demanding cryogenic applications. With a focus on quality, customization, and compliance with global standards, we’re your trusted partner for temperature measurement solutions. Whether you’re working in a lab, aerospace facility, or energy plant, our cables deliver the accuracy and reliability you need to keep your operations running smoothly.