Grand Launch! MF51 Glass-sealed & Ceramic Base NTC Thermistor, Core Breakthrough in Domestic Technology
May 11, 2026
I. Extreme Requirements for NTC Thermistors in Key Fields
In key fields such as new energy vehicles, traditional fuel vehicles, high-end medical equipment, energy storage, fire protection and robotics, NTC thermistors undertake the core functions of temperature monitoring and safety protection.
Unlike consumer electronics, these industries impose stringent requirements on temperature-measuring NTC components:
◾ Zero-defect standard
◾ High reliability and stability
◾ Long service life guarantee
◾ Strong environmental adaptability
Unlike consumer electronics, these industries impose stringent requirements on temperature-measuring NTC components:
Once temperature control fails, it may lead to:
◾ Battery thermal runaway
◾ Abnormal control system operation
◾ Equipment shutdown and production suspension
This may further trigger serious safety accidents. Therefore, high-reliability NTC thermistors have become a key basic component for high-end equipment manufacturing.
II. Root Cause of Traditional Failure: Poor Sealing of NTC Thermistors and Moisture Ingress
Under the combined effect of moisture and electric field:
◾ Metal ion migration easily occurs in electrode materials
◾ Resistance value decreases or even leads to short circuit
◾ Insufficient electrode adhesion causes abnormal increase in resistance
◾ Severe electrode detachment results in open circuit
Such problems are significantly aggravated in high-humidity and high-vibration environments, making conventional products unable to meet the stringent reliability standards of new energy vehicles, robotics and high-end medical applications.
III. Glass Encapsulation Offers Better Sealing Yet Has Structural Deficiencies Compared with Epoxy Encapsulation
◾ Thin glass layer at the joint between glass encapsulation and lead wire
◾ Weak impact resistance
◾ Prone to damage under slight vibration or tensile force
◾ Moisture ingress induces ion migration
This issue becomes particularly prominent under high-frequency dynamic operating conditions of robots and complex road conditions of new energy vehicles.
For a long time, the high-end ceramic base protection process has been monopolized by foreign enterprises, forming a core technical barrier for domestic substitution.
IV. Ceramic Base Reinforcement Solution: Breakthrough at Structural Level
Targeting the weak joint between glass encapsulation and lead wires, has overcome technical difficulties and achieved independent breakthroughs in the glass encapsulation plus ceramic base process.
⭐ Equipped with a ceramic base at the joint of glass and lead wire
◾ Restructures the stress state at the tail and eliminates stress concentration points
◾ Strongly resists tension, vibration, collision and thermal shock, preventing glass damage completely
Key benefits:
Physically blocks the moisture ingress path, effectively avoids scratches on lead plating, thoroughly eliminates hidden chemical corrosion risks, and removes the inducement of metal ion migration at the source.
Final outcome:
It fully releases the inherent advantages of glass-sealed NTC thermistors — high tightness, high precision and high stability — making it an optimal solution for industrial-grade high-reliability temperature control scenarios.
After more than one year of research and development, the R&D team has overcome multiple technical challenges:
◾ Material matching difficulties
◾ Calibration and optimization of process parameters
◾ Technical bottlenecks in positioning and fitting
◾ Tooling and fixture development
◾ Customization of automated production equipment
Final achievements:
✔ Automated mass production
✔ Standardized manufacturing
✔ Customizable development
✔ High-reliability domestic substitution
fast response speed and easy installation advantages of the radial lead structure:
Core Advantages
◾ Prevent fracture at the joint
◾ Completely block moisture ingress
◾ Enhance impact resistance and vibration resistance
◾ Form a buffer and stress transition structure
◾ Improve overall mechanical strength
VI. Strategic Significance of Domestic Substitution
As a national-level Specialized, Refined, Differential and Innovative "Little Giant" enterprise,
◾ Broken foreign technological monopoly
◾ Mastered independent core processes
◾ Realized full domestic substitution of high-reliability NTC thermistors
◾ Built a solid safety barrier for applications in robotics, new energy vehicles, fuel vehicles, high-end industrial equipment, aerospace, high-end medical devices, high-end consumer electronics, and kitchen & bathroom home appliances