Ohmite Non Inductive Resistor
As technology continues to advance, we are seeing a shift away from traditional electronic components and towards newer, more advanced technologies. One such technology that is gaining popularity is the use of non-inductive resistors.
Description
As technology continues to advance, we are seeing a shift away from traditional electronic components and towards newer, more advanced technologies. One such technology that is gaining popularity is the use of non-inductive resistors.
Non-inductive resistors, also known as "resistance only" or "zero inductance" resistors, are electronic components that are designed to resist the flow of electrical current without producing any magnetic fields. This is achieved through the use of special materials and construction techniques that minimize any potential for magnetic coupling between the resistor and surrounding components.
One of the primary benefits of using non-inductive resistors is that they offer improved performance in high-frequency applications. Traditional inductive components such as inductors and transformers are highly susceptible to electromagnetic interference (EMI), which can cause distortion and other negative effects on signal quality. Non-inductive resistors, on the other hand, are virtually immune to EMI, making them ideal for use in high-frequency circuits.
In addition to their EMI immunity, non-inductive resistors also offer other advantages over traditional inductive components. For example, they tend to be more compact and have a lower profile, making them ideal for use in space-constrained applications. They also tend to be more cost-effective than their inductive counterparts, as they require less material and are easier to manufacture.
Despite their many benefits, non-inductive resistors are not without their drawbacks. In particular, they tend to have lower power ratings and may not be suitable for use in high-power applications. Additionally, they may not be able to handle high temperatures as well as other types of resistors, so careful consideration must be given to operating conditions and thermal management.
Overall, non-inductive resistors represent a promising new technology that is poised to revolutionize the way we design and build electronic circuits. By offering improved performance and greater flexibility, they are helping to pave the way towards a more advanced and efficient electronics industry. Whether you are a hobbyist or a professional engineer, non-inductive resistors are definitely worth checking out.
Non-inductive resistance specification
| model | RMG non-inductive resistance |
| peculiarity | Chip structure, small size, light weight, large power, no inductive resistance, good high-frequency characteristics, can withstand high power, safe and reliable, with high overload capacity |
| apply | Suitable for AC, DC or pulse circuit and high power high frequency circuit, with false negative and absorption resistance |
| Use environment | Rated power temperature (+70℃); Operating temperature range (-55℃ ~ +125℃) |
| Structural form | Sheet structure, lead welded |
| Characteristic requirement | The size of the pin and resistor body can be customized according to the special requirements of users |
| Applicable standard | GB/T5729-2003 |
|
Product size |
The product adopts thick film process, copper plate as radiator, moisture-proof, more used in high frequency and pulse load. Temperature coefficient due to ±100PPM, wide range of resistance values, can be processed into a variety of styles, large power, widely used in power instrumentation, can also replace large volume wire-wound resistor used. Power 30W-300W. Resistance starts from 0.1R. Accuracy ± 1%, ± 2% ± 5%
The device is mainly targeted at industrial welding machines, test equipment, UPS, locomotives, automobiles and base station systems, as well as power regulators, current sensing, power conversion, high-speed switches, radio frequency, pulse generation, load resistors, buffers, pulse processing circuits and amplifiers in terminal products. It can also be used as a brake resistor. The appearance size can be made according to user requirements.
The relationship between rated power consumption and ambient temperature:
|
power (W) |
Copper plate size L×H×T (mm) |
Chip size |
|
30 |
20×16×1.5 |
14×16×1 |
|
60 |
47×20×1.5 |
36×0×1 |
|
100 |
60×25×1.5 |
40×25×1 |
|
200 |
70×34×3.0 |
48×35×1 |
|
300 |
80×45×3.0 |
60×45×1 |
Instructions for use
1) The above resistor must be used in the case of external application of the radiator, if the radiator is not added, the use of the resistor power should be greatly reduced.
2) When installing a resistor with a radiator, the installation surface in contact with the radiator should be flat and straight, without burrs, foreign bodies, etc., if necessary, a layer of thermal grease should be applied to the contact surface. When installing fastening screws (or screws), they should be gradually reinforced from the bank (diagonally) and finally completely tightened. You should never tighten one side first and then start tightening the other side. When installing a high-power radiator, spring gaskets should also be added.
Note: Two leads are drawn from the cross section, and the middle hole is the installation hole. The resistance must be externally applied to the radiator, otherwise the power used will be greatly reduced.
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