PTC Thermistor
Thermistor are temperature dependent resistors and PTC stands for Positive Temperature Coefficient of resistance. Ceramic PTC thermistor exhibits a highly positive temperature coefficient where its resistance increases rapidly past a reference temperature (so-called Curie temperature). The PTC thermistors we provide are based on doped semi-conductive BaTiO3 ceramics.

In general , applications using PTC thermistor can be categorized according to three unique behaviors: Resistance-Temperature (R/T),  Current-Voltage (I/V), and Current-Time(I-t) behaviors. Therefore, key points to consider when using PTC thermistors:
‧PTC performance is a function of heat dissipation conditions, thermistor dimension, Curie temperature, thermistor resistance, applied voltage, etc.
‧PTC thermistor auto-regulates its electrical power in response to thermal dissipation.

Advantages of PTC thermistor:
  1. Insensitivity to voltage fluctuations.
  2. Broad operating voltage range (3V to 230V)
  3. No control for temperature or power needed.
  4. Self setting after recovery from faults, and long product life.
  5. Extended electrical & thermal stability, poses no fire hazards.
  6. Suitable for wide range of applications.

PTC thermistors are used in heating applications due to these advantages. Main applications are : space heaters, clothes dryers, dish dryers, hand dryers, de-humidifiers for home appliances; space heaters for OA machine and industrial equipments. And some unique application e.g. chip heating elements for ICs, CMOS…etc. We can find PTC heating elements from home to high end industry.

 
PTC Dimensional Rating:
 
 

HF SERIES PTC FAN HEATING ELEMENTS

Rated Voltage: 12~600V
Power: 100~8000W (@25℃ airflow 3.3M/Sec)
Max Surface Temp: <235℃
Max Current Per Terminal: 0.5~20A
L1: 24~350mm
L2: 50~376mm
W1: 21.5~23.0mm
W2: 21.5~276mm
T: 10~15mm
UL, TUV, CSA認定品

Applications: space heaters, clothes dryers, dish dryers, hand dryers, de-humidifiers for home appliances.
 
 

HI SERIES PTC FAN HEATING ELEMENTS (INSULATION TYPE)

Rated Voltage: 12~600V
Power:100~8000W (@25℃ airflow 3.3M/Sec)
Max Surface Temp: <235℃
Max Current Per Terminal: 0.5~20A
L: 50~322mm
W:25~225mm
T: 9.0~31mm

UL Approval.
Applications: Designed for air heating applications where environmental factors are of a concern and electrical insulation is a must. Especially for automobile supplement heaters and OA machines

 
 

 

We also could design varied figures of heating frame to meet requirement of customer e. g. for air heating or liquid heating. The application could be Anti-Icing system as windshield spray nozzle heaters of cars, or facial steamer for beauty salon.