Shenzhen PakHeng Electronics Ltd


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Contact US


Tel: 86-755-86229698


Fax : 86-755-86229508


Email: sales01@pakheng.com / sales20@pakheng.com 


Address: The 3rd Industry Zone, Yanchuan, Songgang, Baoan District, Shenzhen, Guangdong, China

80 Watt Fixed White Square Cement Resistors Grading Resistance Wire-wound 1ohm 100R With Protecting Circuit Function

80 Watt Fixed White Square Cement Resistors Grading Resistance Wire-wound 1ohm 100R With Protecting Circuit Function

Pakheng resistors company, with high performance and excellent service, can output 80 Watt Fixed White Square Cement Resistors Grading Resistance Wire-wound 1ohm 100R with Protecting Circuit Function at factory price. We have professional technical team and advanced production equipment to ensure that the quality of the products and services. We also can supply white rectangular resistors and cement resistors,your enquiry will be warmly welcome.

    80 Watt  Fixed White Square Cement Resistors Grading Resistance Wire-wound  1ohm 100R with Protecting Circuit Function


    Product Description:


    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.

    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.


    Features

    1. Wind resistance range

    2. Ceramic potting, greater safety.

    3. There are two kinds of core which woundwire and oxide.

    4. High power, longer load life under large load.

    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:



    M450 80 watt grading voltage cement resistors.png


    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:


    4 Watt White Square cement resistors rated power derating curve.png

    Performance Test

    Test Item

    Test Condition

    Performance

    Temperature coefficient

    Test the resistance value at normal temperature added 100,calculate per ℃ resistance value rate.

    ±300ppm/

    Short time overload

    1~4W:According 5 times rated voltage ,5~10W: According 10 times rated power to account the voltage or max .overload voltage (get the lower)for 5 seconds.

    ΔR≤±(2%R0+0.05Ω)

     

    Resistance to soldering heat

    Immerge into the 350±10℃ tin stove for 2~3 seconds.

    ΔR≤±(1%R0+0.05Ω)

    Solderability

    Immerge into the 245±3℃ tin stove for 2~3 seconds.

    The area of soldering is over 95%

    Temperature cycling

    At -55℃ for 30 min,then at +25℃ for 10~15 min,then at +275℃ for 30 min,then at +25℃ for 10~15min, total 5 cycles.

    ΔR≤±(1%R0+0.05Ω)

    Load life in humidity

    Overload rated voltage or Max. working voltage(get the lower)     for 1000 hours (1.5 hours on and half-hours off) at the 40±2℃ and 90~95% relative humidity.

    ΔR≤±(5%R0+0.05Ω)

    Load life in heat

    Overload rated voltage or Max. working voltage(get the lower)m for 1000 hours (1.5 hours on and half-hours off) at the 70±2.

    ΔR≤±(5%R0+0.05Ω)

    Nonflammability

    Respectively load AC voltage by5,10,16 times rated power for 5 min.

    No visible flame



    Available Quality Test: short time overload pulse/surge test/high temperature aging test/RoHS test

    7w sqp type cement resistors quality test

    Available Test Equipment: Withstand Voltage Tester/High Voltage Tester/Resistance Test Table/X-Ray Fluoroscopy

    7w cement resistors test equipment

    Introduction of Products Line

    We have six working procedures: cutting, welding, wire wound, coating zone, detection zone, finished area. Seen from the pictures, our factories are equipped with modern standardized workshop, full-automatic manufacturing equipment, more perfect special testing equipment for producing products.


    Package of SQO type cement resistors:

    4W White Square Metal Alloy cement resistors package and delivery.jpg

    [Shipping]

    1. We will ship the items within 3 working days after the payment confirmed.

    2. We can ship to you by UPS/DHL/TNT/EMS/FedEx. Please contact us directly and we will use your preferred ways. For the Countries & Regions where EMS cannot deliver, please choose other shipping ways.

    3. We are not responsible for any accidents, delays or other issues caused by the forwarder.

    4. Any import fees or charges are on the buyer's account


    Why Choose us?


    1. Quality

    Quality first is our quality policy. Has strict 3 times quality checking rule, including raw material cheking, during production checking, outgoing qulity checking, ensure all the export goods are with high quality.

    2. Design

    Our design team has more than 15 years experience, many products are unique. We design by ourself, produce by ourself, and try to make all the new ideas of client come ture.

    3. Price

    We are more than 25 years old in this line, has rich experience in this line, caculate price only base on materials, to be sure we can offer you the most competitive price, large quantity and long term cooperation is our final aim.

    4. Service

    We have 5 members online service team, promise can reply your inquiry, email, questions within 2 hours. Quicl response, effcient, consider for customer, offer professional suggestions is our work principle


     [Refund & Replacement]

    1. We appreciate your business and offer an instant 7 days return policy. (7 days after receiving the items).

    2. If the items you purchase from our store are not of perfected quality, that is they don't work electronically to manufacturers specifications, simply return them to us for replacement or refund.

    3. If the items are defective, please notify us within 3 days of delivery.

    4. Any items must be returned in their original condition to qualify for a refund or replacement.

    5. The buyer is responsible for all the shipping cost incurred.

     

    After Sales Service:

    We are responsible for all the goods from us. If you have any questions about the goods, you can contact us freely in any time.

    As add-valued service, we can help our customers arrange their goods combination shipment or other goods they want from here China. We also can help our customer pay to their many different suppliers here.


    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.


    Pls do not hesitate to contact us if you are interested in our resistors!

    PakHeng Electronics is one of the leading 80 watt fixed white square cement resistors grading resistance wire-wound 1ohm 100r with protecting circuit function manufacturers and suppliers in China, offering the free sample and competitive price. Welcome to wholesale the high quality bulk resistors made in China from us. It if of good performance and high safety.
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