PTC heater with shell
1. Configuration.

Type

Specialty

Excellence

shortcoming

Others

Aluminium shell

Aluminium shell, with wire and insulating film

Fast heat conduct, large power

The shell is electric conductor, may affect the circuit; it’s can not be very small in bulk

Suitable for liquid heating, air heating, heating a surface

Ceramic shell

Ceramic shell, with wire and ceramic insulation

Low cost, small bulk, insulating shell

Not suitable for large power, easy to crack

Suitable for very small bulk, low power

Plastic shell

Plastic shell, with wire and plastic insulation

Low cost, small bulk, insulating shell

Not suitable for large power, and high temperature

Suitable for very small bulk, it can insert on a circuit board

Resin coating shell

Resin coating, with wire, resin insulation

Low cost, small bulk, insulating shell

Very small power, bad heat conduction, low temperature only

Suitable for very small bulk, it can insert on a circuit board

Heater with temperature controller

With a temperature controller to control the temperature of heating object

the temperature of heating objectcan can be ±2℃ of accuracy

High cost, large bulk, more complex structure

Suitable for controlling the temperature in a small range

Other configurations are shown in the picture of “Various kinds of aluminum shells”

2. Some samples of uses.
1) Aluminum shell. It is very easy to fit, constant temperature, safety, long last time. PTC heater is very appropriate under 260℃ temperature. Main appliances: hair straightener, hair curler (crimper), wax melting heater, humidifier, water boiler, liquid warmer, coffee warmer, polymer press-coating heater, hot glue gun, chocolate extruder. Other aluminium shell heater, such as water heater, diesel heater, air heater, hair straightener, hair crimper, see other page in this website.
2) Ceramic shell. It is very appropriate for low power and 50~250℃, Main appliances: mosquito destroyer, aroma emanater, massager, hair straightener.
3. Notice in appliance.
1) After switching on, the initial heating power is large, and then decrease, finally it become steady state. The steady state power depends on appliance conditions. Faster is the heat conduction, higher is the steady state power; higher is the surface temperature, higher is the steady state power.
2) The surface temperature of PTC can be controlled by itself, control circuit and protecting circuit may be omitted in most appliances.
3) The surface temperature increases (or decreases) about 8℃, when supplied voltage increases (or decreases) 2 time.
4) Our PTC products are reliable, long aging, but if they are assembled improperly, the end product may be loose, power or temperature may be instable.
5) Parallel connection is necessary for two or more PTC connection.
4. Current products.
Aluminum shell constant temperature heating element.

006

Part number

Surface temperature /℃

Length
/mm

Width
/mm

Thickness
/mm

High  pot  /V

Rated voltage/V

LG-70CL30W21T6.8-220V1

70

30

21

6.8

3750

100~240

LG-100CL40W25T6.8-12V1

100

40

25

6.8

1500

6~12

LG-135CL30W21T6.8-220V1

135

30

21

6.8

3750

100~240

LG-135CL31.5W40T7-220V1

135

31.5

40

7.0

3750

100~240

LG-140CL320W40T7-220V1

140

320

40

7.0

3750

100~240

LG-145CL31.5W20T5.5-220V1

145

31.5

20

5.5

3750

100~240

LG-210CL40W25T6.8-36V1

210

40

25

6.8

1500

12~36

Notice:
1) Surface temperature can be selected between 50℃~280℃. Rate voltage can be 6V~600V, AC or DC.
2) The tolerance of surface temperature is ±7℃ usually.
3) Customer designed shapes are possible. The dimensions and the photos of aluminum shell in existence are shown below.
4) TUV approval number: B 09 06 46746 004，B 09 08 16746 008. UL file: E 207611.
5) For PTC hair straightener, curler, water heater, diesel pre-heater, visit other pages of this website.
 

Current aluminum shell
Various kinds of aluminium shell for assembling PTC heater show in below picture. There are many kinds of shape and dimensions, besides of the picture. Please contact our sale for detailed information.
001

 
Ceramic shell PTC heating element
003
Part number Surface temperature/℃ Length /mm Width /mm Thickness /mm High
Pot /V		 Rate
voltage/V
TK-50CL35W20T7-220V1 50 35 20 7 3750 100~240
TK-50CL50W25T7-220V1 50 50 25 7 3750 100~240
TK-50CL50W25T7-24V1 50 50 25 7 1500 6~24
TK-100CL35W20T7-220V1 100 35 20 7 3750 100~240
TK-100CL50W25T7-220V1 100 50 25 7 3750 6~24
TK-100CL12W8T6-24V1 100 12 8 6 1500 100~240
TK-200CL35W20T7-220V1 200 35 20 10 3750 100~240
TK-200CL50W25T7-220V1 200 90 28 10 3750 100~240
TK-200CL12W8T6-24V1 200 12 8 6 1500 6~24

PTC heater with temperature controller
Alumniunm shell, ceramic shell heating element could be controlled by a temperature controller. One type is temperature control type, needed temperature can be set by customer and controlled itself. Another type is voltage adjusting type, the applied voltage can be adjusted lower or higher, and then the temperature will be lower or higher.
333

Notice:
1) Surface temperature can be selected between 50℃~280℃. Rate voltage is 220VAC;
2) UL file of PTC ceramic: E207611.

Plastic shell PTC heating element
003
Models Surface temperature/ ℃ Length/ mm Width/ mm Thickness/ mm Applied voltage/V HI pot  / V Power /W
SK-50CL10W7T4-220V1 50 10 7 4 220 1500 0.1~0.3
SK-50CL10W7T4-12V1 50 10 7 4 12 1500 0.1~0.3
SK-80CL10W7T4-220V1 80 10 7 4 220 1500 0.1~0.3
SK-80CL10W7T4-12V1 80 10 7 4 12 1500 0.1~0.3
SK-100CL10W7T4-220V1 100 10 7 4 220 1500 0.2~0.5
SK-100CL10W7T4-12V1 100 10 7 4 12 1500 0.2~0.5

Notice:
1) Surface temperature can be selected between 50℃~120℃. Rate voltage can be 6V~400V, AC or DC.
2) The tolerance of surface temperature is ±7℃ usually.

Tiancheng Thermistors Co., Ltd.
Add: No. 6, Xinfenglu road, Dabeiwan, Changping, Daojiao town, Dongguan, Guangdong, China,
Post code: 523041
Tel: 86-769-22271712,  22175083, 22185107, 22285948
Fax: 86-769-22278428
Contact:
Ms. Zhao, tel&wechat 13725732994
Ms. Shan, tel&wechat 13544682427
Mr. Zhu, tel&wechat 13602318093
QQ:1539872297
Skype: Xiaorong Zhu , S.Yang-PTC
E-mail: tcptc@tiancheng-ptc.com