describe
Single-ended glass-sealed NTC thermistors are high-reliability temperature sensing components encapsulated using a special glass sealing process. Their most notable feature is that both leads exit from the same end of the glass body , creating a robust "single-ended" structure. This unique design combines the technical advantages of glass encapsulation with convenient installation, making it an ideal temperature measurement solution in harsh environments.
Specification
Shape: pearl-shape
Rated zero-power resistance at 25C. For example: 502 means R2sc=5K Q
Resistance tolerance: F (±1%), G (±2%); H (±3%); J (±5%); K (±10%)
B Value (B,25/50C.): 3950K
B value tolerance: F (±1%); G (±2%); H (±3%)
Highlight features
Superior Sealing and Environmental Resistance: Similar to the MF58, the glass housing provides complete airtight protection, effectively resisting high temperatures, high humidity, condensation, salt spray, and various corrosive gases and liquids. The sensitive ceramic chip is completely isolated from the external environment, fundamentally preventing performance degradation and measurement drift caused by oxidation or moisture penetration.
Extremely high mechanical strength and reliability: The single-ended structure fixes the lead at one end and forms a solid sealed joint between the glass body and the lead, giving it excellent resistance to vibration, impact and bending, able to withstand mechanical stress in harsh environments and a long service life.
Excellent high-temperature and long-term stability: The glass itself is heat-resistant, and its airtightness ensures the stability of the internal materials. Therefore, the component can maintain extremely stable resistance-temperature characteristics over a wide temperature range (such as -55°C to +250°C or higher), with minimal long-term drift and high accuracy retention.
Versatile Mounting Options: The single-ended lead structure provides significant installation flexibility. It can be directly inserted into a PCB for through-hole mounting (THT) like a standard diode, or it can be clamped using its robust glass body or mounted using a bracket on a surface or in a cavity at the desired measurement location. It is ideal for installation in motor windings, metal housings, or pipes.
Main Applications
Automobile and transportation : engine management systems, transmission oil temperature monitoring, battery pack temperature monitoring, air conditioning systems, etc., require high weather resistance and vibration resistance.
Industrial automation and motor drive : servo motors, frequency converters, pump winding overheat protection, plastic machinery heating cylinder temperature control, industrial equipment online temperature monitoring.
Household appliances : temperature sensing and control in high-temperature and high-humidity environments such as high-end dishwashers, dryers, and ovens.
Energy management : heat dissipation temperature monitoring of solar inverters, charging piles, and power modules.
In summary, the single-ended glass-sealed NTC thermistor is a high-performance temperature sensor designed for high-reliability, long-life applications. It perfectly combines the ultimate protection of glass sealing with the mechanical robustness and installation convenience of a single-ended structure , making it the ultimate choice for meeting the challenges of high temperature, high humidity, vibration, and corrosive environments.
