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Item #:
40621924
Wirewound Resistor 100W Watt 0.5 Ohm Aluminum Shell Chassis Mounted Resistors - 2pcs
Item #:
40621924
MWK 69987
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Imported from USA store
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Aluminum case has the screw tabs on it so you can tighten them against a chassis or heat sink for greater heat dissipation.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
High Power Rating
With a robust 100W power handling capacity, these wirewound resistors ensure reliability and performance for demanding electrical applications, accommodating higher loads without overheating.
Precision Resistance
Offering a low resistance of 0.2 Ohm, these resistors provide excellent precision and stability, making them ideal for applications requiring accurate current control and minimal distortion.
Durable Construction
Housed in a sturdy aluminum shell, these chassis-mounted resistors enhance durability and heat dissipation, ensuring longevity and safe operation even in harsh environments.
Product Details
| Item Weight | 0.5 lbs (230 grams) |
Who Should Buy?
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Hobbyist Electronics
Ideal for DIY projects requiring precise resistors that can handle substantial power loads effectively and efficiently.
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Audio Amplifier Builders
Perfect for audio applications where low resistance and high power handling can enhance performance without distortion.
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Industrial Applications
Suitable for demanding environments where reliable and robust resistors are necessary for machinery and equipment.
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Low Power Circuits
Not suitable for applications requiring low wattage resistors, as their specifications exceed the necessary thresholds.
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Overly Compact Spaces
May not fit in tight enclosures due to their chassis-mounted design which requires more space for installation.
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General Purpose Use
Not ideal for basic electronics where highly precise and specialized resistors are unnecessary or excessive.
Product Description
Wirewound Resistor 100W Watt 0.5 Ohm Aluminum Shell Chassis Mounted Resistors - 2pcs
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What are wirewound resistors used for?
Answer: Wirewound resistors are used in a variety of applications requiring precision and stability, such as power supplies, current sensing, and load testing. Their design allows for high power handling and excellent temperature tolerance, making them ideal for environments where reliability is crucial. For example, in audio equipment, these resistors minimize noise and ensure high-quality signal integrity, providing better performance in sound systems. -
Question:
What does the 0.2 Ohm rating indicate?
Answer: The 0.2 Ohm rating indicates the resistance value of the wirewound resistor, defining how much it will impede electrical current. This low resistance is particularly useful in high-current applications, such as electric motor controls or battery management systems, where precise control of current is essential. By minimizing voltage drop, these resistors help to optimize efficiency in various electronic circuits. -
Question:
Why is the aluminum shell significant?
Answer: The aluminum shell of the resistor serves two main purposes: it enhances heat dissipation and protects the internal components. The ability of aluminum to dissipate heat effectively helps to maintain optimal operating temperatures, ensuring longevity and reliability of the resistor in high-power applications. Applications include automotive electronics and industrial machinery, where heat management is critical to performance. -
Question:
Can these resistors be used in home appliances?
Answer: Yes, these wirewound resistors can be used in home appliances such as heaters, air conditioners, and various electronic devices where precise resistance is crucial. Their ability to handle high power levels with stability makes them suitable for applications that require dependable performance over time, improving the efficiency and reliability of your appliances. -
Question:
What is the significance of the chassis mounted design?
Answer: The chassis mounted design enables secure attachment to electronic assemblies, providing reliable electrical connections and mechanical stability. This design is particularly beneficial in industrial applications or equipment subject to vibrations, as it ensures that the resistors remain firmly in place, enhancing overall reliability. Common use cases include power distribution panels and control systems where space and stability are essential. -
Question:
How do I calculate the power dissipation of these resistors?
Answer: To calculate the power dissipation of wirewound resistors, you can use the formula P = I²R, where I is the current flowing through the resistor and R is the resistance value. Given a low resistance of 0.2 Ohms, this calculation allows you to assess the thermal load to ensure the resistor operates within safe limits. This knowledge is especially important in applications like motor drive circuits to prevent overheating. -
Question:
Are these resistors suitable for high temperature environments?
Answer: Yes, wirewound resistors with aluminum shells are designed to withstand high temperature environments. Their construction allows them to operate effectively within a wide temperature range without significant performance degradation. This trait makes them ideal for use in industrial applications, automotive electronics, and high-temperature circuits where resistance stability is crucial. -
Question:
What is the benefit of using two resistors in a pack?
Answer: Purchasing a pack of two wirewound resistors is beneficial for redundancy and versatility. In many electronic projects, you may need to use two resistors either in series or parallel configurations to achieve desired resistance or power levels. This ensures that you have a backup available in case of failure, which is especially useful in critical systems where reliability is paramount. -
Question:
What tools do I need for installation?
Answer: For installation, you will need a soldering iron, solder, and basic tools like wire cutters and a multimeter. The soldering iron is essential for securely mounting the resistors onto a circuit board or component. After installation, using a multimeter allows you to verify proper connections and resistance values, ensuring optimal performance in your projects, whether in DIY electronics or prototyping. -
Question:
Where can I buy Wirewound Resistors 100W Watt 0.2 Ohm Chassis Mounted Aluminum Shell Resistors - 2pcs?
Answer: You can buy Wirewound Resistors 100W Watt 0.2 Ohm Chassis Mounted Aluminum Shell Resistors - 2pcs on Ubuy. Ubuy offers a wide selection of electronic components, making it a reliable source for your resistor needs, ensuring you find quality products suited for your projects.
Dahszhi Single Resistors Editorial Review
The Dahszhi Wireound Resistor 100W Watt 0.5 Ohm Aluminum Shell Chassis Mounted Resistors come in a pack of two and are well made and accurate in their listed value. They are suitable for use as dummy loads for amplifier or receiver output testing, or for low powered sound speakers. They are also good for use as a replacement resistor for a Porsche fan. However, some users have reported issues with the heat sink becoming loose during assembly, and caution should be exercised when using multiple resistors in parallel to ensure that the overall impedance does not exceed the amplifier's capacity. It is also worth noting that the temperature rating for these resistors is under 130℃.
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Pros
- -Well made and accurate -Suitable for use as dummy loads for amplifier or receiver output testing -Suitable for use with low powered sound speakers -Worked as a replacement resistor for Porsche fan
Product Price History
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MWK 69987
Order now and get it around Friday, June 26
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