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The Waste Electrical and Electronic Equipment Directive (WEEE Directive) is the European Community Directive 2012/19/EU on waste electrical and electronic equipment (WEEE) which, together with the RoHS Directive 2011/65/EU, became European Law in February 2003. The WEEE Directive set collection, recycling and recovery targets for all types of electrical goods, with a minimum rate of 4 kilograms (9 lb) per head of population per annum recovered for recycling by 2009. The RoHS Directive set restrictions upon European manufacturers as to the material content of new electronic equipment placed on the market.

The symbol adopted by the European Council to represent waste electrical and electronic equipment comprises a crossed-out wheelie bin with or without a single black line underneath the symbol. The black line indicates that goods have been placed on the market after 2005, when the Directive came into force. Goods without the black line were manufactured between 2002 and 2005. In such instances, these are treated as "historic WEEE" and fall outside reimbursement via producer compliance schemes.

INFO: Full form for IERN is Internal-external Recurrent Neural Network in Electronics category
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INFO: Full form for AFSA is Air Film Substrate Air in Electronics category
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INFO: Full form for AFS is Adaptive Frontlighting System in Electronics category
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INFO: Full form for HARM is High-speed Anti-radiation Missile in Electronics category
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INFO: Full form for WEQ is Wholesale Electric Quadrant in Electronics category
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INFO: Full form for GEP is Gold Electroplate in Electronics category
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INFO: Full form for EVM is Eulerian Video Magnification in Electronics category
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INFO: Full form for REM is Reflection Electron Microscopy in Electronics category
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INFO: Full form for REM is Recyclability Evaluation Method in Electronics category
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A varistor is an electronic component with an electrical resistance that varies with the applied voltage. Also known as a voltage-dependent resistor (VDR), it has a nonlinear, non-ohmic current–voltage characteristic that is similar to that of a diode. In contrast to a diode however, it has the same characteristic for both directions of traversing current. Traditionally, varistors were indeed constructed by connecting two rectifiers, such as the copper-oxide or germanium-oxide rectifier in antiparallel configuration. At low voltage the varistor has a high electrical resistance which decreases as the voltage is raised. Modern varistors are primarily based on sintered ceramic metal-oxide materials which exhibit directional behavior only on a microscopic scale. This type is commonly known as the metal-oxide varistor (MOV).

Varistors are used as control or compensation elements in circuits either to provide optimal operating conditions or to protect against excessive transient voltages. When used as protection devices, they shunt the current created by the excessive voltage away from sensitive components when triggered.

The name varistor is a portmanteau of varying resistor. The term is only used for non-ohmic varying resistors. Variable resistors, such as the potentiometer and the rheostat, have ohmic characteristics.

INFO: Full form for TMS is Transmission Measuring Set in Electronics category
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INFO: Full form for TMS is Test Mode State in Electronics category
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INFO: Full form for TMS is Test Mode Select in Electronics category
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INFO: Full form for WOW is Wafer On Wafer in Electronics category
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INFO: Full form for SMU is Semiconductor Matrix Unit in Electronics category
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INFO: Full form for TIME is Timing Installation Made Easy in Electronics category
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INFO: Full form for MEQ is Micro Equalizer in Electronics category
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INFO: Full form for CDM is Common Device Model in Electronics category
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INFO: Full form for CDM is Cardioid Dynamic Microphone in Electronics category
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INFO: Full form for CBM is Conduction Band Minimum in Electronics category
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