shenxing ceramic heating resistance insulator steatite ceramic case for resistor

Common Resistor Types Using Steatite Cases

steatite ceramics in these resistor types:

​​Wirewound Resistors:​​

​​Construction:​​ A resistance wire (like Nichrome) is wound around a steatite ceramic rod or tube. The steatite body provides the core for winding. For higher power ratings, the assembly is often placed inside a larger steatite tube or case, with the space filled with a silicone cement for better heat transfer and environmental protection.

​​Appearance:​​ Typically a white, brown, or grayish cylindrical body with metal end caps and axial leads.

 

​​Power Film Resistors:​​ Similar to wirewound, but a resistive film is applied to a steatite rod instead of a wire.

 

​​Cement Resistors:​​ A specific type of wirewound resistor where the steatite case is packed with heat-conducting, non-flammable cement to enhance power rating and protect the element.



Steatite ceramic case for resistor is a kind of packaging or protective component for resistors, which is made of steatite ceramic material.

 ​​Steatite​​ (a form of magnesium silicate, MgO·SiO₂) is known for:
​​Excellent Electrical Insulation:​​ Very high electrical resistance.
​​High Mechanical Strength:​​ Rigid and robust.
​​Good Thermal Stability:​​ Maintains properties over a wide temperature range.
​​Low Dielectric Loss:​​ Especially at high frequencies.
​​Resistance to Thermal Shock:​​ Can withstand rapid temperature changes better than some other ceramics.

Technical Parameters


 

Item Unit Zirconia ceramic 99% alumina ceramic 96% alumina ceramic 95% alumina ceramic Steatite ceramic Mullite ceramic Cordierite ceramic
Bulk density g/cm3 6 3.8 3.7 3.6 2.8 2.2 2.3
Water absorption % 0 0 0 0 0 12 12
Thermal Conductivity (w/m.k) 10 19-30 16-28 14-24 2-3 2-6 1.3-1.8
Resistance to thermal shock,Minimum TK? 70 150 140 140 80 150 300
Withstand voltage,Minimum KV 15 20 18 18 20 25 -
Flexural strength Mpa 1000 300 280 240 120 120 30
Sintering temperature 1500 1670 1600 1600 1250 1250 1250
Maximum working temperature 1200 1500 1200 1200 800 1000 1000

 

Application


 

Specifically used for high-temperature and high-voltage insulation parts, circuit substrates, high-temperature devices, etc. As the main representative of precision ceramic materials, it is widely used in industries such as semiconductors, petrochemicals, and electronics.

 

 

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Certificate


 

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3. What’s the lead-time for samples and batch orders?
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Product Tags steatite ceramic base          ceramic resistor housing          steatite ceramic holder          ceramic cover for resistor          ceramic resistor case          resistance ceramic         

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