Electrostatic Discharge ESD

Electrostatic Discharge or ESD is the release of electrical energy between two objects that have a potentially different voltage. This discharge can be caused by built-up static electricity and often times can create a visible spark. Electrostatic Discharge (ESD) equipment is a key element of EMC immunity testing. This easy-to-comprehend electrical phenomenon can be noticed as a person moves across a carpet and then touches an object or person, releasing energy or a "zap". Taking a look at the diagram below you can see as the person moves across the carpet they build up electrostatic charge. This causes the individual to have a higher potential voltage then the object, in this case a computer. As the person moves close enough to the object, the electrons on the person will have enough energy to move through the air to the object, causing a discharge of electrical energy. Post-discharge you will notice that both the person and object have no potential electrical difference, or at equilibrium.

Electrostatic Discharge ESD diagram of an ESD dischargeThis common type of immunity test must be done in accordance with the required standards where the product will be sold. There are a variety of different standards that apply to where you intend the product to be used, however the majority of ESD testing is done for products used in a household or commercial environment. Below you will find list of common used standards with links to pages about those individual standards. The wide range of applications affected by ESD can be seen in diverse sets of standards.  
 
Common ESD Related Standards

When preforming ESD testing to any standard, consideration must given to the ESD Simulator, test levels, and setup. Having the most effective ESD simulator to complete testing is crucial in minimizing costs and downtime. All designs for ESD simulator vary from one manufacturer to another, however all have three main components, the unit or body, discharge network, and tips. Below you will find a diagram showing the breakout of each on an ESD 3000. When looking at which ESD simulator is the best fit, it is important to consider where you plan on using it, how you plan on using it, and your budget. Where you plan on using it is crucial as some simulators require a connection to an outlet, others are battery-powered. If you plan on doing a diverse set of testing it would be beneficial to select an ESD simulator that has easy changeable and relatively cheap discharge networks. Renting individual discharge networks on an occasional basis tends to be significantly cheaper than renting an entire ESD simulator. There is also a considerable used market for many varieties of simulators should you have limited capital.

ESD Simulator Main components

      Electrostatic Discharge ESD

      Electrostatic Discharge or ESD is the release of electrical energy between two objects that have a potentially different voltage. This discharge can be caused by built-up static electricity and often times can create a visible spark. Electrostatic Discharge (ESD) equipment is a key element of EMC immunity testing. This easy-to-comprehend electrical phenomenon can be noticed as a person moves across a carpet and then touches an object or person, releasing energy or a "zap". Taking a look at the diagram below you can see as the person moves across the carpet they build up electrostatic charge. This causes the individual to have a higher potential voltage then the object, in this case a computer. As the person moves close enough to the object, the electrons on the person will have enough energy to move through the air to the object, causing a discharge of electrical energy. Post-discharge you will notice that both the person and object have no potential electrical difference, or at equilibrium.

      Electrostatic Discharge ESD diagram of an ESD dischargeThis common type of immunity test must be done in accordance with the required standards where the product will be sold. There are a variety of different standards that apply to where you intend the product to be used, however the majority of ESD testing is done for products used in a household or commercial environment. Below you will find list of common used standards with links to pages about those individual standards. The wide range of applications affected by ESD can be seen in diverse sets of standards.     Common ESD Related Standards

      When preforming ESD testing to any standard, consideration must given to the ESD Simulator, test levels, and setup. Having the most effective ESD simulator to complete testing is crucial in minimizing costs and downtime. All designs for ESD simulator vary from one manufacturer to another, however all have three main components, the unit or body, discharge network, and tips. Below you will find a diagram showing the breakout of each on an ESD 3000. When looking at which ESD simulator is the best fit, it is important to consider where you plan on using it, how you plan on using it, and your budget. Where you plan on using it is crucial as some simulators require a connection to an outlet, others are battery-powered. If you plan on doing a diverse set of testing it would be beneficial to select an ESD simulator that has easy changeable and relatively cheap discharge networks. Renting individual discharge networks on an occasional basis tends to be significantly cheaper than renting an entire ESD simulator. There is also a considerable used market for many varieties of simulators should you have limited capital.

      ESD Simulator Main components

          Electrostatic Discharge ESD

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