Hwalon Launches Anti-Corrosion Potting Epoxy Small Black Head NTC Thermistor to Boost Thermal Safety Control of Outdoor
2026-07-23
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With the rapid global expansion of photovoltaic energy storage and outdoor charging equipment industries, harsh operating conditions such as high temperature, high humidity and coastal salt fog corrosion inside outdoor cabinets have set new industrial standards for weather resistance, anti-corrosion performance and long-term stable temperature measurement of temperature sensors. Recently, Hwalon Electronic Limited officially released its new-generation Anti Corrosion Potting Epoxy Small Black Head NTC Thermistor. Targeted at core industry pain points of temperature measuring components in outdoor energy storage equipment, including resistance drift caused by moisture, corrosion failure and delayed early warning of thermal runaway, this new product completes the enterprise’s full product matrix of temperature control sensors for new energy applications.
As a professional manufacturer with 15 years of R&D and production experience in NTC thermistors and PTC ceramic heating elements, Hwalon has carried out triple innovations in materials, packaging and manufacturing processes for this new product tailored to outdoor energy storage scenarios. Adopting an integrated vacuum potting process with anti-corrosion modified epoxy resin, multi-layer adhesive layers isolate erosion from moisture, salt fog and trace chemical volatile gas inside cabinets. The product has passed a 72-hour double 85 high-temperature & high-humidity aging test (85℃ / 85%RH) and neutral salt spray corrosion verification, thoroughly solving the industry-wide problem that ordinary epoxy NTCs suffer from severe resistance drift and shortened service life after long-term operation in closed humid cabinets.
In terms of parameter compatibility, this anti-corrosion small black head NTC covers a full resistance range from 5K to 100K Ohm. It can match various temperature control parameter requirements of BMS battery management systems for household energy storage, industrial & commercial energy storage, photovoltaic inverters and outdoor DC charging piles. Customers do not need to stock multiple models, effectively reducing material inventory costs for complete machine manufacturers. It is equipped with dedicated UV-resistant fully insulated anti-aging lead wires. The insulation layer will not crack or harden under long-term outdoor sunlight exposure, eliminating equipment safety faults caused by short circuits from aging wires.
In terms of application value, this product is mainly positioned for temperature monitoring and thermal protection systems of photovoltaic energy storage cabinets and outdoor charging equipment. It continuously collects real-time temperature data of energy storage battery cells and power modules 24/7. Once abnormal temperature rise occurs, it outputs stable resistance signals rapidly to link with the control system to trigger power reduction, heat dissipation or power-off protection, fundamentally avoiding fire risks from thermal runaway of lithium batteries in unattended outdoor energy storage cabins. It complies with increasingly stringent global thermal safety control specifications for the energy storage industry.
Hwalon’s R&D director stated that the global energy storage temperature control components industry is iterating toward three major trends: high reliability and weather resistance, scenario-specialized design and long service life. Overseas energy storage integrators have seen surging demand for outdoor dedicated anti-corrosion temperature sensors, while the delivery cycle of high-end customized products has generally lengthened. Relying on self-owned automated packaging production lines and a full set of reliability testing laboratories, Hwalon can provide rapid sample testing and stable mass supply for this series of anti-corrosion NTC thermistors. OEM & ODM customization of lead wire length, resistance value and mounting structure is supported. Complete environmental protection material reports and damp-heat aging test data are supplied simultaneously to meet overseas customers’ requirements for product certification and factory audits.
Supported by a global foreign trade sales network, Hwalon has opened sample testing channels for this new product to overseas energy storage equipment manufacturers across Southeast Asia, Europe, America, Australia and the Middle East. One-stop export services on FOB Shenzhen basis are available. In the future, Hwalon will continue to deepen its layout in the new energy thermal management track, iterating high-reliability temperature measuring components dedicated to liquid-cooled energy storage, high-voltage energy storage and offshore photovoltaic systems. By supplying high-quality domestic temperature control components, Hwalon will support the safe, long-term and low-cost development of the global energy storage industry, accelerating the process of domestic substitution of high-end NTC thermistors worldwide.
Industry Comment
Energy storage safety is the core bottom line for the high-quality development of new energy storage industries. Complex outdoor environments greatly increase the risk of temperature sensor failure. Hwalon’s newly launched anti-corrosion potting dedicated NTC thermistor precisely targets the segmented track of outdoor temperature measurement for energy storage. It fills industry product shortcomings from multiple dimensions including encapsulation materials, weather-resistant processes and full resistance compatibility. The company provides standardized, high-reliability and customizable outdoor thermal management temperature measurement solutions for energy storage complete machine manufacturers at home and abroad, further consolidating Hwalon’s overseas market competitiveness in the field of new energy temperature control sensors.
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Custom Epoxy NTC Thermistor Temperature Sensors Mass-Produced, Full Specifications of 5K 10K 100K 110K & B3977 Available
2026-07-16
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Recently, our factory has completed capacity expansion for the series of epoxy encapsulated NTC thermistor temperature sensors. The products support full customization of standard parameters including 5K, 10K, 100K, 110K resistance and B3977 value. Adopting epoxy resin sealing technology, the sensors feature waterproof, temperature-resistant and high-stability performance, widely applied in home appliances, energy storage, new energy, medical devices, industrial temperature control and other scenarios, with bulk shipments delivered to global customers.
Epoxy Encapsulation Process Creates Durable Temperature Sensing Components
This series of temperature sensors are integrally molded with epoxy resin potting, delivering multiple advantages over bare chip and sleeve encapsulated products:
Excellent protection performance: The epoxy colloid isolates moisture, dust and oil stains, delivering basic waterproof and moisture-proof performance to ensure long-term stable operation inside humid and dusty equipment.
Wide temperature adaptability: Operating temperature range covers -40℃ to 125℃. The colloid transfers heat evenly for fast temperature response and minor temperature measurement error.
Vibration-resistant stable structure: The fully cured integrated structure prevents wire breakage and component displacement during transportation and equipment vibration, reducing after-sales failure rates of end devices.
Built with high-precision NTC thermistor chips, the sensors offer standard resistance options of 5kΩ, 10kΩ, 100kΩ and 110kΩ, plus mainstream B-value 3977. We can customize special resistance, B-value, wire length and lead material according to customer drawings or samples, perfectly matching temperature control circuit designs of different devices.
Wide Industrial Application for Global Temperature Control Equipment
Our epoxy NTC temperature sensors have been mass-supplied to terminal products across multiple industries:
Home appliances: Water heaters, water dispensers, air conditioners, ovens, floor heating temperature control modules
New energy & energy storage: Lithium battery pack temperature monitoring, energy storage converter temperature control
Medical devices: Nebulizers, constant temperature physiotherapy instruments, testing equipment temperature probes
Industrial automation: Mini temperature control modules, water pumps, motor overheat protection
Export small home appliances: Supporting components for temperature-controlled small home appliances exported to Europe, America and Southeast Asia
We accept OEM & ODM bulk orders for overseas buyers based on drawings or sample parameter customization with stable lead time. All products comply with RoHS environmental standards to meet market access requirements of European and American regions.
Full-Range Quality Control to Ensure Batch Consistency
Multiple inspection procedures are set throughout the whole production process, from NTC chip screening, lead welding and epoxy potting to resistance calibration:
Full inspection of resistance and B-value for every sensor before delivery, with tolerance strictly controlled within customer standards.
High & low temperature cycle aging test to verify resistance drift after long-term service.
Random sampling of waterproof insulation and voltage resistance test to eliminate risks of electric leakage and short circuit.
Equipped with mature automatic production lines, we accept small-batch sample orders and large-volume foreign trade orders. Our technical team provides circuit matching and model selection support to quickly deliver optimal temperature sensing solutions for clients.
Closing Paragraph
With continuous expansion of the global temperature control equipment market, demand for high-precision and high-stability miniature temperature sensors keeps growing steadily. Our company will keep upgrading the epoxy NTC sensor product line, developing more customized sizes and special temperature-resistant models. With dual supply modes of standard stock and personalized customization, we deliver cost-effective temperature sensing component solutions for electronic equipment manufacturers worldwide.
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Hwalon Launches High-Efficiency RoHS-Certified PTC Thick-Film Ceramic Heater for US B2B Market
2026-05-29
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Los Angeles, USA – May 29, 2026 — Amid surging demand for energy-saving and safe heating components in the U.S. home appliance, automotive and industrial sectors, Chinese manufacturer Hwalon officially rolls out its premium MCH PTC Thick-Film Ceramic Heater, targeting American B2B wholesalers, equipment manufacturers and custom solution providers.
Product Overview & Core Technology
Compliant with strict U.S. environmental and safety standards, containing no lead, mercury, cadmium or hexavalent chromium, perfectly meeting local market access requirements. Unlike traditional alloy wire heating elements, the MCH series adopts advanced thick-film ceramic heating technology, featuring high thermal efficiency and uniform temperature distribution. Its rated working temperature ranges from 100℃ to 230℃, while the maximum temperature can reach 500℃ to 700℃, fully adapting to diverse heating needs of U.S. downstream industries.
Electrical & Physical Performance
In terms of electrical and physical performance, the product boasts outstanding reliability. The insulation resistance is no less than 5*10⁸Ω, and it withstands multiple voltage withstand tests up to 4000VAC. With a volume density of over 3.6g/cm³ and bending strength up to 270MPa, it delivers stable operation in complex working environments. Moreover, it has a safe failure mode that protects peripheral circuits from damage even under abnormal conditions, a critical advantage favored by U.S. industrial and home appliance manufacturers.
Key Applications
Widely applicable in the U.S. market, the heater is ideal for:
Smart bidet seats
Electric water heaters
Hair styling tools
Automotive exhaust oxidation sensors
Small household heating appliances
B2B Cooperation Details
Minimum Order Quantity (MOQ): 1,000 pieces with negotiable unit prices.
Monthly Supply Capacity: 400,000 units, ensuring stable bulk delivery.
Sample Orders: Supported with free samples available, delivered in 3-5 days.
Bulk Orders: Take 7-15 days after payment.
Flexible Payment Methods: Including T/T, Western Union and PayPal.
Global Shipping: Via DHL, FedEx, UPS and sea freight.
Services: One-stop OEM and ODM services, able to customize packaging, user manuals and labels in English.
Support: Professional after-sales support and 12-hour inquiry response service are available.
As U.S. energy efficiency regulations grow stricter, this RoHS-compliant, high-efficiency PTC heater is set to become a cost-effective heating solution for North American B2B buyers.
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PTC Heating Elements: The New Choice for Intelligent Temperature Control, Leading the New Era of Efficient and Safe Heat
2026-03-23
As a new generation of intelligent heating cores, PTC (Positive Temperature Coefficient) heating elements, with their core advantages ofself-constant temperature, high safety, long service life, energy saving and high efficiency, are fully replacing traditional metal heating wires and becoming the mainstream heating solution in fields such as home appliances, new energy vehicles, industrial equipment, and medical health, with a continuous rise in market demand.
I. Core Technical Advantages, Reshaping the Heating Experience
Based on special ceramics, PTC heating elements heat up quickly after being energized and automatically enter a high-resistance constant temperature state. They can stabilize at a preset temperature (usually ≤200℃) without additional thermostats, and there is no redness or open flame during operation, eliminating the hidden dangers of scalds and fires from the source. Their heat conversion efficiency is as high as 95%-98%, and they can intelligently adjust power according to ambient temperature, saving more than 30% energy compared with traditional heating products. At the same time, the products are resistant to dry burning and voltage fluctuations, with a service life of more than 10 years under normal working conditions, far exceeding the 3000-5000 hours of traditional heating wires.
II. In-depth Application in Multiple Fields, Covering Full-Scenario Needs
New Energy Vehicles: As a core component of battery thermal management, PTC heaters can quickly preheat batteries to 25-40℃ in an extremely cold environment of -40℃, increasing cruising range by 15%-20%. Adaptable to 800V high-voltage platforms, they have become standard equipment for mainstream domestic new energy models, with an annual market growth rate of over 35%.
Home Appliances: Widely used in heaters, dryers, air conditioners, electric irons, smart toilet covers, etc., they realize rapid heating and precise temperature control, conforming to the trend of home appliance energy efficiency upgrading.
Industry and Medical Care: Applied in industrial drying, instrument constant temperature, medical hot compress, portable medical equipment, etc., they provide precise temperature control of ±0.5℃, meeting harsh environmental and safety requirements.
Emerging Fields: Flexible printed PTC elements are suitable for wearable devices and car seat heating, while miniaturized products help IoT sensors and consumer electronics achieve thin and light design.
III. Domestic Technology Breakthrough, Leading the Global Market
The domestic PTC heating element industry has achieved independent technological control. Several leading enterprises have an annual production capacity of over 10 million units, with a domestic market share of 70%, and have successfully entered the international supply chain. With the comprehensive advantages of smaller size, unchanged power and lower cost, domestic PTC products have defeated international giants and won orders of over 100 million US dollars from European automakers, demonstrating the strength of "Made in China".
IV. Future Trends: Integration, Flexibility and Intelligence
The industry is moving towards the direction of high-voltage integration, flexible miniaturization and intelligent control. PTC elements will be integrated with heat pump technology and equipped with AI algorithms to further improve energy efficiency and adaptability, and release greater potential in fields such as new energy, smart home and medical health.
With the characteristics of safety, efficiency and intelligence, PTC heating elements have become an innovative force in the heating field. With technological iteration and application expansion, they will continue to promote the upgrading of thermal management solutions in various industries and bring better temperature control experience to global users.
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PTC and MCH Ceramic Heating Plates: Redefining Hair Straightener Performance
2025-09-24
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PTC and MCH Ceramic Heating Plates: Redefining Hair Straightener Performance
September 24, 2025
As consumers demand faster, safer, and more efficient hair styling tools, MCH (Metal Ceramic Heater) and PTC (Positive Temperature Coefficient) ceramic heating elements are becoming the backbone of modern hair straighteners. These highly efficient, eco-friendly heating plates replace traditional alloy wire components, delivering rapid heat-up times, energy savings, and long-term reliability.
1. Fast and Consistent Heating for Salon-Quality Results
Unlike conventional heaters, MCH and PTC ceramic plates heat evenly and quickly, offering:
No trigger or noise, allowing free switching between power states.
Instant, powerful heat for fast styling without damaging hair.
Consistent temperature distribution across the entire ceramic surface, preventing hotspots.
This combination ensures both professional-grade results and user safety.
2. High Efficiency, Low Power Consumption
Designed with energy efficiency in mind, these ceramic heaters:
Control current autonomously without additional controllers.
Support direct connection to compressors and most return circuits.
Consume less power while maintaining high heat output.
Manufacturers benefit from reduced energy costs while offering a premium product that meets modern eco-friendly standards.
3. Robust and Reliable for Long-Term Use
With high mechanical and electrical durability, MCH/ PTC ceramic heating plates are built to last:
Insulation resistance: R ≥ 5*10⁸Ω (500VDC)
Compressive strength: up to 4000VAC (short-term)
Rated operating temperature: 100–230℃, withstands 500–700℃
Volume density: ≥3.6 g/cm³
Bending strength: ≥270 MPa
Compression strength: ≥2700 MPa
These specifications ensure long operating life, high stability, and safe performance, even under continuous use in salons or household environments.
4. Compact and Versatile Design
The small size of the MCH/PTC heater allows for easy integration into hair straighteners and other beauty appliances. Its versatile design supports:
Direct connection to heating circuits without additional components.
Quick, powerful start-up, ideal for on-demand styling.
Durable construction to withstand repeated heating cycles.
This makes it a cost-effective, high-performance solution for OEMs producing hair straighteners, curlers, and other beauty devices.
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