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More anti-sulfur resistors used  in harsh environments

More anti-sulfur resistors used in harsh environments

Electronic components, including resistors, often have to operate in harsh, challenging environments. Given the fluctuating natures of climates all over the globe, the task that requires components to operate in high humidity, extreme dryness and incredibly moist environments comes as no surprise. Besides moisture, heat, sulfur is also endange the resistors performance. What may come as a surprise is that thick-film SMDs, the resistor type most often used in todays designs, are actually quite resilient to this common threat, ...

Date:2020-01-20      [More+]
Choose Right Resistor for Different Applications

Choose Right Resistor for Different Applications

One of the most common components that every professional or hobbyist circuit designer encounters is to choose trusty electrical resistors from resistor manufactures as Microhm Electronics. A resistors job is to convert electrical energy, either DC or AC, into thermal energy by having higher resistance than the typical electrical conductor used in a circuit. By doing so, they can control the current flow through or voltage drop across them, offering a handy way to manipulate such things in an electronic circuit. In fact, its ...

Date:2020-01-10      [More+]
Current Detection of 5W Shunt Resistors in Automotives

Current Detection of 5W Shunt Resistors in Automotives

Resistors in current detection applications are typically used to detect overcurrent conditions or remaining battery level. And although current sense resistors have been widely adopted in the automotive and industrial sectors, the recent trend towards greater sophistication and computerisation has increased current requirements, leading to a need for high power components. This includes a demand for high accuracy resistors with superior temperature coefficient of resistance (TCR) for stable operation in extreme temperature e...

Date:2020-01-10      [More+]
High Precision Low TCR Resistors for Scale Applications

High Precision Low TCR Resistors for Scale Applications

Temperature Coefficient of Resistance, or TCR, refers to how the value of a resistor will vary with changes in temperature. This temperature change can be from changes in the environment around the resistor as well the resistor heating itself as it dissipates power. Growing applications demand resistors with increasely lower TCRs. Resistor manufactures like Microhm Electronics attach great importance to the production of low TCR resistors. With a typical TCR of 50ppm and a perfect tolerance, the resistance value will shift 0....

Date:2020-01-09      [More+]
Resistors' Usage in the Booming Electric Commercial Vehicles

Resistors' Usage in the Booming Electric Commercial Vehicles

With Dyson recently announcing its surprise move into the electric vehicle market, it is clear that the electric car boom is upon us. However, the technology behind these vehicles must continue to be refined to perfect its use in alternative applications, including commercial vehicles. Meanwhile, the passive components, including resistors are must be well-picked to suitable for these electronic commerical vehicles. A recent study revealed that short driving ranges and battery technology are two of the key factors stopping co...

Date:2020-01-07      [More+]
Resistors' Types and Characteristics

Resistors' Types and Characteristics

There are a lot of different resistor types, all with their own applications, characteristics and construction. Microhm Electronicss resistors are broadly ultilized in automotives, green engeries, communications and more. This page lists the different resistor types which are described on the resistor guide. Fixed resistors The fixed resistor type is the most common resistor, when people talk about a resistor they most probably mean a fixed resistor. Fixed resistors have a constant resistance value. Different resistor materia...

Date:2020-01-06      [More+]
Microhm Electronics' Sense Resistor for Motor Control

Microhm Electronics' Sense Resistor for Motor Control

The use of current sense resistors, such as Microhm Electronics shunt resistors, is part of a trend in motor control system design that benefits from adopting new digital isolation technologies. These technologies offer higher reliability levels to designers based on the introduction of the component level standard IEC 60747-17, which specifies the performance, test, and certification requirements for capacitive and magnetically coupled isolators. Digital control of a motor drive incorporates current sense resistors for sensi...

Date:2020-01-03      [More+]
Film Resistors' Role in  Automotives' Signal Conditioning and Calibration

Film Resistors' Role in Automotives' Signal Conditioning and Calibration

In almost all new vehicles, an electronic engine control module teams with sensors and actuators to constitute the engine control system where film resistors play important roles. Piezoresistive transducers implanted in a silicon wafer with bulk micromachined diaphragms have become the dominant technology for producing automotive pressure sensors. Initially an absolute, bulk micromachined, piezoresistive pressure sensor element with a backside constraint for the formation of a vacuum reference cavity--a necessary element for ...

Date:2020-01-02      [More+]
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