Alumina metallic ceramic heating element (HTCC)

Product ID: 9aa1
 
 

Alumina ceramic heating chip glowing 1.JPG
alumina ceramic heating chip rectangular 2.JPG
1, Introduction:

HTCC is an acronym for High-temperature co-fired ceramics; HTCC ceramic heating element is made up of high melting point metal heating material such as tungsten, molybdenum or molybdenum – manganese and 92-96% alumina ceramic substrates.  The metal heating resistance slurry is printed onto the tape casting ceramic green body according to the design requirement, several layers of ceramic green body are then laminated together and is fired at 1500 ~ 1600 ℃ high temperature,  with the aid of 4-8% sintering additive, to form the alumina ceramic heating element. This product features in corrosion-resistant, withstanding high temperature, long life cycle, energy efficient, uniform surface temperature, excellent thermal conductivity and thermal compensation rate. Alumina ceramic heating element doesn’t contain harmful substances such like: lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers, etc., and is in compliance with EU RoHS and other environmental requirements.
 

alumina ceramic heating element rod glowing 2.JPG
alumina metal ceramic heating rod.JPG
2, Background information

With the advent of the integration of electronic components, electronic devices have posed higher demands on circuit miniaturization, high-density, multi-function, high reliability, high speed and large power. Co-fired multi-layer ceramic substrate meets all these requirements so it has been used in a wide range of applications in recent years. Co-fired multi-layer ceramic substrate can be divided into high temperature co-fired ceramic (HTCC) substrate and low temperature co-fired multi-layer ceramic (LTCC) substrate. Compared to LTCC, high temperature co-fired ceramics (HTCC) has higher mechanical strength, higher wiring density, better chemical
stability, higher thermal dissipation coefficient and lower cost and is widely used in the heating and packing applications requiring higher thermal stability performance, less high temperature volatile gases and better sealing.
High temperature co-fired ceramic heating element is a good alternate of alloy wire and PTC ceramic heating element and component.
 

alumina ceramic heating chip round 4.JPG
3, Features

  1. Energy saving, high thermal efficiency
  2. Surface is not charged, good electric insulation, withstand 4500V/1s, leakage current<0.5mA
  3. Linear resistance-temperature, easy to control temperature by controlling the electric resistance
  4. No power decay for a long period
  5. Rapid heating, a 500W ceramic heating element can reach above 600 ℃ in 20 seconds; its components can reach above 200 ℃ in 10 seconds
  6. No open flame, safety
  7. Uniform surface heating
  8. High power density: ≥ 50 W/cm2
  9. Environmental Protection: no lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls, more harmful substances such as polybrominated diphenyl ethers, in full compliance with EU environmental requirements.

alumina ceramic heating chip round 3.JPG
4, Application

  1. Heat gun
  2. Hair salon appliance (hair straighteners, curlers)
  3. Warm air conditioning
  4. Instantaneous water heater
  5. Multi-functional microwave, oven, drying
  6. Clothes dryer
  7. Hand dryer
  8. Kettle, coffee maker

  
Alumina metal ceramic heating tube 1.JPG
5, Technical parameters

5.1 Appearance:

  1. Smooth surface
  2. Neat edge
  3. Silver electrode
  4. White ceramic body
  5. Our "efficient Tape Casting ceramic substrates" technology prepares ultra-thin, ultra-smooth ceramic green body which ensures the smooth surface of the ceramic body. Precision hot press lamination ensures the neat edge. Electrode points are nickel plated and spot welded leads after firing, so the electrodes appear silver.

5.2 Dimension tolerance:

  1. Length direction: ± 1.2mm
  2. Width direction: ± 0.5mm
  3. Thickness direction: ± 0.1.
  4. After repeated firing experiments, our R & D personnel has collected the green body shrinkage data, and summed up the appropriate rate of contraction based on experimental results. Through careful control of the casting, punching and lamination process, we minimize the size differences between the green body and the firing product.

alumina ceramic heating chip rectangular 1.JPG
5.3 Voltage range: DC / AC 5-220V

Depending on the resistance value, alumina ceramic heating element can be used in a wide range of voltage from 5V DC to 220V AC.

5.4 Power density

By optimizing the production formula, ceramic heating element generates the greatest possible power density, from 60W / cm2 in startup stage, to 25W / cm2 in normal use.

5.5 Leakage current <5mA

Rated leakage current <5mA. When applying 1800V/3750V high voltage, leakage current is less than 0.5mA.

5.6 Thermal Shock

The product can withstand thermal shock without cracking when it is heated to 150 ± 10 °C and is placed in water at 20 ℃.

5.7 Electric insulation

When applying 4500V for 1 second, leak current <0.5mA

 

alumina ceramic heating element rod glowing 1.JPGalumina metallic ceramic heating chip glowing 2
6, Material properties

Properties Test condition Unit Value or performance
Color, appearance

White, dense
Substrate material

96% alumina ceramics
Density
g/cm3 >3.7
Warpage
mm <0.2mm
Leads tensile strength
kg Axial direction ≥5
Across direction≥3
Bending strength
MPa >300
Thermal conductivity 20℃ W/(m.K) ≥20
Electric insulation strength 25±1℃,110V:1800V/10seconds,220V:4500V/10 seconds
Leakage current <0.5mA
Insulation resistance DC500V >100
Electric resistance 25±1℃ Ω 0.4-1000 (or customer made)
Cycle time test Under rated voltage and general temperature condition (≤ 280 ° C), power on for 60min and then power off for 60min repeatedly
1000 times, no damage
Power-on test At rated voltage, power on for 20 seconds in the air, the surface temperature of 600 ℃ -750 ℃
No damage
High-temperature durability test At the highest temperature, generally 500-700 ° C, continuously power on
More than 24 hours
 
 

7, Types

7.1 Rectangular alumina ceramic heating element

Alumina ceramic heating chip rectangular drawing.JPG
L (mm) W (mm) T (mm) l (mm) d (mm) Voltage (V) Electric Resistance (Ω)
10 10 1.25 75 0.5 3.7-12VDC 0.1-500Ω
11 11 1.25 75 0.5 5-12VDC 1-20Ω
18 12 1.25 75 0.5 3-36VDC 1-20Ω
20 20 1.25 75 0.5 1.5-5VDC 1-20Ω
24 24 1.25 75 0.5 5-12VDC 1-20Ω
25 25 1.25 75 0.5 1.5-5VDC 1-20Ω
30 30 1.25 75 0.5 12/24v 1-100Ω
35 20 1.25 75 0.5 12VDC 8Ω
45 45 1.25 75 0.5 5/12/24VDC 1-10Ω
48 26 1.25 75 0.5 5-220VAC 0.1-500Ω
50 10 1.25 75 0.5 3.7VDC 2.0-3.5Ω
55 15 1.25 75 0.5 40VDC 40Ω
70 30 1.3 75 0.5 110VAC 40Ω
90 20 1.25 75 0.5 5-220VAC 0.1-2000Ω
 
To view all rectangular chip specifications, open Rectangular alumina metallic ceramic heating element specification.

7.2 Round shape alumina ceramic heating element

 
Alumina ceramic heating chip round drawing.JPG
OD (mm) ID (mm) T (mm) l (mm) d (mm) Voltage (V) Electric Resistance (Ω)
5 0 1.25 75 0.5 5-12VDC 1-100Ω
7 5 1.25 75 0.5 5-12VDC 1-100Ω
10 1 1.25 75 0.5 5-12VDC 6-9Ω
10 0 1.25 75 0.5 3.6-24VDC 1-100Ω
14 5 1.25 75 0.5 3.7-24VDC 1-100Ω
15 5 1.25 75 0.5 3.6-24VDC 1-100Ω
17 1 1.25 75 0.5 3.6-24VDC 1-100Ω
20 8 1.25 75 0.5 3.7-24VDC 1-100Ω
24 0 1.25 75 0.5 3.6-24VDC 1-100Ω
24 1 1.25 75 0.5 5VDC 7.5-9Ω
25 0 1.25 75 0.5 3.6-24VDC 1-100Ω
30 1 1.25 75 0.5 12-36VDC 1.8Ω
30 12 1.25 75 0.5 3.6-24VDC 1-100Ω
32 12 1.25 75 0.5 3.7-24VDC 1-100Ω
35 0 1.25 75 0.5 12VDC 1.7-1.9Ω
40 0 1.25 75 0.5 3.6-24VDC 1-100Ω
45 0 1.25 75 0.5 12VDC 10Ω
47 0 1.25 75 0.5 3.6-24VDC 1-100Ω
48 0 1.25 75 0.5 5-12VDC 6Ω
48 1 1.25 75 0.5 12VDC 1-1.5Ω
 
To view all rectangular chip specifications, open Round shape alumina metallic ceramic heating element specifications.

7.3 Rod shape alumina ceramic heating element

alunima metal ceramic heating rod drawing.JPG
 
L (mm) D (mm) d (mm) l (mm) Voltage (V) Electric Resistance (Ω)
33.5 2.5 0.5 55 12V 7-9Ω
40.0 3.8 0.6 75 12V 2.7-3.3Ω
55.5 3.7 0.5 55 12V 3-3.8Ω
56.0 3.6 0.5 55 12V 3-3.8Ω
57.0 3.0 0.7 15 12V 3.15-3.65Ω
58.0 3.8 0.5 55 24V 3.2-3.7Ω
59.0 3.7 0.6 60 12V 3.2-3.8Ω
60.0 3.8 0.6 60 24V 2.5-4.0Ω
62.0 3.8 0.6 60 24V 1.5-2.0Ω
64.0 5.4 0.5 65 220V 235-285Ω
70.0 6.5 0.5 85 220V 99-121Ω
74.0 4.4 0.5 65 220V 370-450Ω
79.0 5.4 0.5 65 220V 240-290Ω
80.0 5.0 0.5 55 110V 65-80Ω
90.0 8.0 1.0 25 110V 27-33Ω
91.0 8.0 1.0 25 220V 108-132Ω
 
To view all rectangular chip specifications, open Rod shape alumina metallic ceramic heating element specifications.

7.4 Tube shape alumina ceramic heating element

 
alunima metal ceramic heating tube drawing.JPG
OD (mm) ID (mm) L (mm) l (mm) d (mm) Electric resistance (Ω) Voltage (V) Power (W)
5.5 2.5 65.0 55.0 0.5 40/120Ω 110V/220V 60W/120W
5.5 2.5 80.0 55.0 0.5 60Ω 220V 220W
5.5 3.0 45.0 55.0 0.5 2Ω 24V 120W
6.0 2.5 40.0 55.0 0.5 180Ω 220V 100W
6.0 2.5 70.0 55.0 0.5 40/120Ω 110/220V 150w
12.0 10.0 70.0 55.0 0.5 60Ω 12/24V 60W/220W
22.0 20.0 70.0 55.0 0.5 60Ω 12/24V 60W/220W
25.0 20.0 70.0 55.0 0.5 60Ω 12/24V 60W/220W
25.0 20.0 70.0 55.0 0.5 60Ω 12/24V 60W/220W
35.0 30.0 70.0 55.0 0.5 60Ω 12/24V 60W/220W
 

7.5 Alumina ceramic heating components

alumina metal ceramic heating component 1.jpg
alumina metal ceramic heating component 2.jpg
A variety of alumina HTCC ceramic heating element and cooling aluminum corrugated piece radiator are combined and can be built into heating components, used in the field of various heating appliances, such as heaters, dryers, air conditioning  and humidifiers, etc.

7.6 Customer made alumina ceramic heating element

 We provide customer made products to meet various requirements. Here are some examples what we did before.
 
Alumina metal ceramic heating element customer made 1.JPGalumina metal ceramic heating element customer made 2 1.JPG
Alumina metal ceramic heating element customer made 3.JPGAlumina metal ceramic heating element customer made 4.JPG