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Add:Yongli Road NO.6, Guodian, Yanguan Town, Haining City, Zhejiang 314412 China
Tel:+86-573-87297683 87179527
Fax:+86-573-87297683
Http://www.hn-yongli.com
Sales and Service:
ptc@hn-yongli.com
Technical Supports:
yl@hn-yongli.com |
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 Products |
| PTC Heating Elements |
1、Application Principle
PTC thermistors are ideal as heating elements because of their specific R/T characteristic. The positive R/T characteristic means that electric power consumed is automatically adapted to the ambient thermal conditions. If the ambient temperature is significantly higher than Tref or heat transfer is restricted, the resistance of the thermistor rises rapidly and power consumption is limited to a very low value. Thanks to these self-regulation properties, heating devices based on PTC thermistors can generally dispense with control and regulating components as well as overtemperature protection.
2、PTC heating elements have the following advantages:
| ·Self-regulating operation |
·No glowing parts |
| ·No excess temperature protection required |
·Various geometries possible |
| ·Available for all voltage ranges(3V to 660V) |
·Wide choice of surf. temperatures (40 to 320 °C) |
| ·Prepared for clamping with plane-parallel contact surface |
·Long service life |
3、Application examples for heating thermistors:
Automotive
| ·Additional cabin heating |
·Diesel fuel preheating |
| ·Diesel fuel filter heating |
·Windshield washer nozzle heating |
Domestic
| ·Fan heaters, e.g. bathroom heaters |
·Electric hair curlers |
| ·Insecticide and perfume vaporizers |
·Bimetal heaters for door latches of washing machines |
| ·Oil preheating in oil burners |
·Thermal actuators for liquid dispensers and thermostats |
Others
| ·Glue guns |
·Plastic film welders |
4. PTC Heating Elements Photos
Dimension schedule for PTC heaters
| No |
Dimension(mm) |
No |
Dimension(mm) |
No |
Dimension(mm) |
No |
Dimension(mm) |
| 1 |
Φ70×Φ10 |
11 |
36×8 |
21 |
32.7×10.2 |
31 |
24×7 |
| 2 |
Φ16×Φ4 |
12 |
36×6 |
22 |
31×7 |
32 |
24×15 |
| 3 |
Φ14.5×Φ4.3 |
13 |
36.2×5.7 |
23 |
31×11 |
33 |
24×10 |
| 4 |
Φ13 |
14 |
35×6 |
24 |
31.8×22.5 |
34 |
20×8 |
| 5 |
Φ12 |
15 |
35×13 |
25 |
30×15 |
35 |
20×15 |
| 6 |
Φ8 |
16 |
35×10 |
26 |
30×12 |
36 |
20×12 |
| 7 |
50×8 |
17 |
35.4×14.5 |
27 |
27.8×10.6 |
37 |
18×6 |
| 8 |
45×10.4 |
18 |
32×13 |
28 |
27.5×14.5 |
38 |
18.5×14.5 |
| 9 |
40×7 |
19 |
32×12 |
29 |
26×15.5 |
39 |
15×10 |
| 10 |
38×30 |
20 |
32×10 |
30 |
25×8 |
40 |
7×6 |
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