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Resistor Technology and Applications  –  Blog

Thick Film Resistor In Radar Applications

RADAR systems may be complex but their operation relies on a range of relatively simple resistor components. Resistors are used in pulse forming, sensing, switching, current limiting and RF termination applications, among others. In the late 1800’s Heinrick Hertz...

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Thick Film Resistors Vs Thin Film – A Comparison

What are the advantages of thick film resistors over their thin film cousins? In this post, we consider the ideal resistor and discuss how both thin film and thick film resistors compare with that ideal. The Ideal Resistor The perfect resistor has zero capacitance and...

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Thick Film Resistor Design Considerations

When designing any electronic system there are compromises to be made in component selection. This extends to what may be perceived as the simplest components including resistors and capacitors. In this post, we consider typical thick film resistor design and...

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Current Sense Resistors In Power Applications

Current sense resistors work by detecting and converting current to voltage. The current flow through the resistor is calculated based on the voltage drop across the resistor. The voltage drop (measured in millivolts) is measured using precision amplifier circuits. In...

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Comparing resistor technologies

When comparing resistors, their performance may appear to be similar but it is important to understand the advantages, disadvantages and limitations of each resistor technology. In reality, no material or manufacturing method is perfect. Ambient temperature, moisture,...

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Custom Resistor Networks For Specialist Applications

Resistor networks have several advantages over discrete devices. They reduce the system board area required to mount resistor devices, increase system reliability (lower number of interconnects) and simplify the system manufacturing process. Resistor networks are used...

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Resistor Networks In Resistor Ladder Applications

When a basic digital to analog conversion is required a resistor ladder is the perfect choice. In this post we discuss how to build a resistor ladder, application limitations and how application specific resistor networks can mitigate the impact of those limitations....

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Snubber Resistors In Power Electronic Applications

Snubber resistors are used in a variety of power electronic applications as circuit protection elements. They suppress voltage spikes that could damage sensitive electronic components.  Snubbers are used in a wide range of applications including lamp ballast, and...

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Thick Film Heater Elements In Medical Applications

Thick film heater element are used in a wide variety of applications including incubation of cultures, to heat fluids before injection, DNA analysis and diagnostic equipment. These applications require controllable heat to be delivered to a specific area, often over...

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Power Resistor Derating For High Temperature

In complex electronic systems, the issue of power resistor derating for high temperature can often be overlooked. The system designer may have many design issues to consider. Passive components, such as power resistors, can often be the last to be evaluated, if at...

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High Voltage Resistor Applications

High voltage resistors are used in a wide range of applications including Power supplies, ESD protection, Electron Microscope, Air Ionising equipment, RADAR equipment and ATE. Example circuits include high voltage bleeder, voltage balancing, voltage regulation and...

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Thick Film Power Resistor Mounting Considerations

Inappropriate thick film power resistor mounting can compromise resistor performance. In this post, we cover the key points to consider. Position on System Board The primary heat dissipation mechanism of a thick film power resistor is through radiation. It is...

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