LED Lamps, High Stability Ceramics For Ballasts, PTC Thermistors, MZ5 SeriesMZ5A05D75C500-800R800V Multi-Resistance

Good Stability And Strong Overload Capacity Ceramic PTC Thermistor Complete Series And Wide Working Range
 

Thermistor is a sensitive component developed early, with many types and mature development. Thermistors are composed of semiconducting ceramic materials and utilize the principle that temperature causes a change in resistance. When the temperature is lower than Tc, the negative charge at the grain boundary is partially offset by the polarization charge, so that the barrier height is greatly reduced, and the grain boundary is in a low-resistance state; when the temperature is higher than Tc, the spontaneous polarization disappears, and the negative charge at the grain boundary cannot It is obtained that the polarization charge barrier is at a high level, and the grain boundary is in a high-resistance state. The overall resistance of the material rises sharply.
 

The characteristics of PTC thermistor are:
 

1. Power saving
The energy input of the thermistor adopts the proportional type, which has the current limiting characteristic of the protection circuit, and saves power compared with the switching energy input of heating elements such as nickel-chromium wires.
2. Long service life
The PTC thermistor itself is an oxide, there is no high-temperature oxidation defect of the nickel-chromium element wire, and there is no fragile situation of the infrared diode, the service life is long, and the service life of the porous type is longer than that of the non-porous type
3. It has the special performance of constant temperature, adjustment and temperature control
When AC or DC voltage is given to the thermistor element to heat up, below the Curie temperature, the resistivity is relatively low; if it is higher than the Curie temperature, the resistivity suddenly increases, so that the thermistor current is reduced to a fixed value, reaching Automatic constant temperature, temperature adjustment purpose
4. Non-combustible, safe and stable
When the PTC thermistor is hot, it does not glow red, has no flame, and is difficult to ignite
When the temperature near the thermistor exceeds the limit value, its power is automatically reduced to a stable value, and no burning accidents will occur
5. Wide operating voltage range
PTC thermistor can be used normally under low voltage 6 to 36V and high voltage 110-240V
6. Simple structure
The thermistor itself is to be automatically temperature controlled, and no other automatic temperature control circuit assembly is required

Competitive Advantage:

1, Convenient installment and small size

2, No requirement for reseting after over-heat protection

3, Quick action

4, We can offer equivalent PTC thermistor of Thinking & TDK

5, Long life working time

6, Good stability

7, Wide range protection temperature: 30~150°C

APPLICATION: