PTC thermistors for degaussing circuits. Characterized by no contact, no noise, long life. The product is used in the demagnetizing circuit of color CRT. It can effectively demagnetize the magnetized CRT shading board due to the influence of magnetic field and improve the color barrier. Models are: MZ71, MZ72, MZ73, MZ1, MZ2, MZ3, etc.
SMD SMT PTC thermistor. This resistor is flat sheet, suitable for mass production of PCB chip packaging, higher efficiency, low defect rate.
High polymer PTC thermistor. This kind of PTC is often found in PPTC self-recovery fuse, which has the function of over-current and over-heat protection, and can be restored. Under normal conditions, the low resistance state, once the phenomenon of overcurrent occurs, the PPTC thermistor self-heating to increase its impedance to suppress the current to a small enough to protect the secondary circuit.
The PTC heater has the characteristics of constant temperature, temperature regulation and automatic temperature control. It is also safe, reliable and has a long life. When the PTC heater is heated, the resistivity is very low below the Curie point temperature; once the temperature exceeds the Curie point, the resistivity increases sharply, so that the current drops to a stable value, so as to achieve automatic control of temperature, constant temperature and other purposes. Widely used in tea disinfection cabinet, coffee machine, chocolate machine, electric mosquito repellent, thermostat, physiotherapy, heater and other electrical appliances.
PTC thermistors are started by motors and motors. This kind of resistance is usually found in disc structure of optical sheet. It is more suitable for clamping contact mode and more suitable for single-phase induction motor. The PTC motor starter is one of the most important components for motor startup.
Power type PTC thermistor. Usually PTC thermistors are connected in series in the power supply circuit. Normally, the current flowing through the PTC is less than the rated current, and the resistance value is very small. When the circuit current greatly exceeds the rated current, the PTC suddenly heats, the resistance value suddenly increases to the high resistance state, thus limiting or blocking the current, and protecting the back circuit from damage.