Original
By certification 
Product Description:
cement resistors are made by cut trimming metal oxide film core or winding resistance wires around non-alkaline ceramic core, either is added with a layer of heat and humidity resistant and non-corrosive protective material. The wire wound resistor or metal oxide resistor is then placed in a square ceramic package sealed with special nonflammable heat-resistant cement.
Pakheng electronics offers commercial grade ceramic-housed power wirewound and film resistors. For medium to high rated power (1W...50W), SQ resistors provide full electrical insulation mounted in a ceramic case.
Axial, radial, vertical styles and several mounting techniques of wire leads or quick disconnects are available from Pakheng's SQP, SQM, SQZ, SQO and SQH.
The SQ series power resistors feature ideal specifications for high volume and high-temperature applications. Frequently used in power supplies, motor controllers, and automotive applications, these products can be custom tailored to individual needs.
Features
1. Ceramic potting, greater safety.
2. There are two kinds of core wjich woundwire and oxide.
3. High power, longer load life under large load.
4. Wind resistance range
5. excellent heat resistance, resistance temperature coefficient is small, a linear change.
6. resistance to short time overload, low noise, resistance has not changed year after year.
7. Explosion-proof performance, and play a protective role
8. porcelain rod winding and then welded joints, the system made a precise resistance and extend the life.
Applications:
Complete insulation suitable for printed circuit boards,Power supplies ,Voltage dividers ,Motor controllers ,Automotive applications ,Power electronics circuits.
Construction:
Ceramic core : High alumina ceramic is used.
Resistor element :The resistor element shall consist of metal oxide film or Resistance wire
Terminal : Tinned iron cap.
Connection : The lead wire,which is plated with solder,shall be mounted to the caps by welding process.
Lead wire:Soldered or tinned annealed wire.
Silicon cement : Silicon resin is used. Accord with UL-94V-0 Nonflammable specification
Ceramic case : High thermal conductivity
Specification and Dimension:
Electricity Performance Parameters:
power |
Electricity performance parameters |
||
Max. Working voltage |
Max. Overload voltage |
Withstand voltage |
|
1W |
150V |
300V |
500V |
2W |
150V |
500V |
1000V |
3W |
350V |
600V |
1000V |
5W |
350V |
600V |
1000V |
7W |
500V |
700V |
1000V |
10Ws |
500V |
800V |
1000V |
10W |
750V |
550V |
1000V |
15W |
1000V |
1000V |
1000V |
20W |
1000V |
1000V |
1500V |
25W |
1000V |
1000V |
1500V |
30W |
1000V |
1000V |
1500V |
40W |
1000V |
1000V |
1500V |
50W |
1200V |
1000V |
1700V |
80W |
1200V |
1000V |
2000V |
100W |
1200V |
1000V |
2000V |
Rate Power Derating Curved：
Performance Test
Test Item |
Test Condition |
Performance |
Temperature coefficient |
Test the resistance value at normal temperature added 100℃,calculate per |
