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Power and Precision Guides The high voltage resistors can be found in various designs. Each of these resistors is used for different purposes and applications. Most of their manufacturers are specializing in the design of a customer or application specific high voltage resistor in a low to medium volume. These types of resistors can be used in numerous applications and they are retaining the complete understanding of resistors’ application and technology issues.

These manufacturers know that users are trying to prevent risking and compromising the component and system failure. They do this through using standard products of resistors. These do not get the exact specification being asked but they are actually the closes materials available. There have been manufacturers that are offering products for high voltage resistor that are application-specific and are available in low to medium volumes.

A high voltage resistor major application is circuit protection sensitive elements present in a power supply. Other applications include motor control, medical devices, anti static systems, balancing and emitter resistors, military systems (RADAR, SONAR) and divider circuits. Manufacturing capability can be defined through various elements or factors which involve voltage, Ohmic range, TCR (temperature coefficient of resistor) and wattage range.
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High voltage resistors got special requirements in terms of applications on high voltage. The common ¼ W carbon film resistor present in most electronics have been rated from 250V up to 500 V. This is actually below the kilovolt level requirement. The limitation of the voltage has been set through issues on power dissipation such as the 10k resistor having 1 kV across this dissipates 100W which is excessive to the common ¼ watt.


Even in terms of a low current application, physical length of a device of about one centimeter indicating about 5 to 10 kV which arch around a resistor body is a big problem. Aside from that, other high voltage resistors have been using the spiral paths of a darker metal oxide which is present in ceramic. This is another type of high voltage resistor. This is known as tiger stripe resistor. Its capability of peak voltage is usually the body length function and they come in voltage that is ranging about 50 kiloVolt. An important type of resistor is the non-inductive tubular resistor or the bulk ceramic one. Due to large resistive material volume, these types of resistors must have the ability to handle highly pulsed power compared to the metal film or wirewound counterparts. This is to make them perfect for high energy pulse and rapid energy dumping works.
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Shunt resistors are usually associated a parallel position along with an instrument or the component. This is done to divert an electrical current. These have been providing the alternative paths for current just in case there is failure and may be utilized to complete the reduction in the sensitivity of input from an input line going to the ground.

Current shunt resistors were generally low in resistance and passive electronic devices used to measure AC (alternating current) and DC (direct current) going through the voltage drop in which currents created throughout resistance. The electrical specifications of the shunt resistors involve resistance tolerance, power rating, resistance power coefficient, resistance temperature coefficient, ohms, and current rating.


Ohm is measuring the opposition of the material to the electricity circuit flow while the TCR or temperature coefficient of resistance is referring to resistance change with temperature change. The power coefficient of resistance or PCR is the temperature that arise because of self-heating. For the current-sensing shunts, the resistance usually ranges from 100 µO up to 500 mO. The shunt resistor is being used in the current conversion application and it requires high precision.
Resistor Shunt

The physical specifications present in shunt resistors are resistor materials and even the type of lead. A shunt resistor can be surface mounted, chassis mounted, through-hole mounted, and bolted. Through-hole technology (THT) and surface mount technology (SMT) have been the other typical and well-known mounting styles. The other kinds of lead are screw terminals, J-leads, and tab terminals. There are also gull-wing leads, radial leads, and axial leads available.

There is also a shunt resistor that has no leads. These are the wire wound, thick film, metal alloy, thin film, ceramic, metal film, metal oxide and carbon film. The carbon shunt resistor has been comprised of high temperature, resistive, solid and ceramic materials that have been bonded by the metal contacts. Metal alloy shunt resistors got more than two metallic elements. On the other hand, a wire wound shunt resistor contains thin wire winding in the ceramic rod.

Each shunt resistor becomes unique in the area of packing because of passive electronic components that were packed in tape reel assemblies. This includes carrier tape which had embossed cavities for individual component storage. Some were packed in trails (trays) have been composed of fiber and carbon-power materials while they have been molded in a rectangular outline containing matrices of pockets that are uniformly spaced.