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Resistors And
Resistive Applications
PTC Heater
PTC or “Positive Temperature Coefficient of Resistance” heaters are safe
and reliable thermistors made of functional semiconductor materials. As the
temperature increases beyond the Tc point, the resistance goes down and
the temperature falls below Tc point. Then the resistance increases again.
This kind of effect is called the “PTC domino effect”.
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GENERAL SPECIFICATIONS
Model
YB80-
240/150/021
1 220V
Wattage Rating
3.7W
(220V, 0.017A)
Resistance
500~2KΩ
(at 25°C)
Max Current
220V not more
than 2A
Surface
Temperature
85±10°C
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CHARACTERISTICS
Insulation Resistance
Withstanding Voltage
Life cycle test
±10% performance change
DC500V, 20MΩ Minimum
AC 3750V for 2min.; Max. leakage current : 1mA
Apply 220V for 2000min
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DIMENSIONS
*Lead wire pipe : Plastic Ø1.5, Length 25±2mm
*Power lead wire : UL1332 Black color, 22AWG
*Lead wire strength : 1.5kgf for 1min
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SURFACE TEMPERATURE
Increase versus voltage
Increase versus time at Rated Voltage
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sg@raraohm.com