110V SMD Disc PTC Thermistor 90C 10R For Sweeping Robot

Product Description

Heating Element SMD Disc PTC Thermistor Chip 90C 110V 10R For Sweeping Robot

Description Of The PTC Thermistor Chip

A PTC, or semiconductor, is a ceramic-based electrical component with temperature-dependent resistance that is used as a heating element. Its positive temperature coefficient allows electrical current to flow better at low temperatures than at high temperatures. As the temperature rises, the PTC’s natural resistance increases while its current conductivity and power output decrease until a state of equilibrium is reached and the current can barely flow anymore. That’s the so-called PTC effect. Thanks to their self-regulating characteristic, PTC heating elements cannot overheat, which makes this heating technology particularly safe and reliable.

Characteristic PTC Curve Of The PTC Thermistor Chip

The typical resistance curve of a semiconductor as a function of temperature is called PTC curve. The initial resistance of the PTC first decreases slightly with increasing temperature until the lowest resistance value Rmin is reached. Now the actual PTC behavior begins as the resistance increases non-linearly up to the nominal temperature Tc. At this point, also known as Curie temperature, the PTC’s resistance increases significantly. The operating range of the PTC extends from the nominal temperature Tc to the maximum final temperature Te, where hardly any current flows. The maximum temperature of a PTC depends on its ceramic composition and can therefore be determined in advance. Another characteristic of the PTC is its inrush current. As the resistance of the PTC is at its lowest value in Rmin, a particularly large amount of current can flow there, causing it to undergo an increased inrush current for a few seconds each time it is switched on.

Specification Of The PTC Thermistor Chip 

1) Small household appliances use PTC heating element Features: high withstand voltage, high reliability, small power aging

2) PTC heating element for hair curler and hair straightener

3) Electric mosquito coil product Features: high temperature accuracy, good voltage resistance reliability, excellent resistance to voltage shock performance and resistance to mechanical shock performance.

4) PTC heating element for electric vehicle Features: high withstand voltage, high reliability, low power aging

5) PTC heating element for air conditioner Features: full voltage inspection, high reliability, small power aging, long service life.

6) PTC heating element for thermostat Features: brushed silver electrode on the surface, excellent electrode contact performance, high temperature accuracy, small power aging, long service life

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