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AMWEI - Model 220V 270C D20mm -PTC Thermistors Heater Disk Solderable
PTC Thermistors Self-regulation Heating Elements Disk Shaped, 220V Surface Temperature 270C, Diameter 20mm Thickness 2mm, Silver Metallization Electrode, Solderable, R25: 2K-10K Ohm. can be used in tool equipment vehicles cabin battery motor heating, etc. More details in https://amwei.com/ptc-heater-disk-220v-270c-diameter-20mm/Resistance @25C R25 : 2k-10k Ω
Rated voltage (RMS) : 220 V
Maximum operating voltage Vmax: 265 V
PTC Thermistor Surface Temperature: 270C±10C
Operating ambient temperature range (V=0): -40~+200C
Operating ambient temperature range (V=Vmax) : -40~100C
Applied for 220V/120V heating, can be used in tool equipment vehicles cabin battery motor heating, etc.
Safe through temperature limiting characteristics.
No danger of fires since there are no glowing parts.
Dynamic, self regulating, and therefore energy efficient.
No excess temperature protection required.
Compact design.
Long service life.
PTC Heater is ceramic barium titanate PTC thermistor used for self-regulation constant heating, no glowing parts, no overheating, energy efficient, compact design, long service life.
PTC thermistor positive resistance vs. temperature R/T characteristic means that electric power consumed is automatically adapted to the ambient thermal conditions. At an ambient temperature significantly lower than Tref, i.e. with good heat transfer, the PTC thermistor has low resistance and consumes a relatively large amount of power. If the ambient temperature is significantly higher than Tref or heat transfer is restricted, the resistance of the PTC thermistor rises rapidly and power consumption is limited to a very low value.
Thanks to self-regulation properties, heating devices based on PTC thermistor technology can generally dispense with control and regulating components as well as with over-temperature protection, PTC thermistor heating elements are used wherever measurement and regulating equipment as well as heating devices must be housed in tight confines. There are no glowing parts, because the maximum surface temperature is limited by the R/T curve.
More details in PTC Thermistors Heaters
