They may be used by Analog Devices to build a profile of your interests and show you relevant content on our site. Targeting Cookies: These cookies may be set through our site by Analog Devices and our service providers. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance. All information these cookies collect is aggregated and therefore anonymous. They help us to know which pages are the most and least popular and see how visitors move around the site. Performance Cookies: These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. If you do not allow these cookies then some or all of these services may not function properly. They may be set by us or by third party providers whose services we have added to our pages. Functional Cookies: These cookies enable the website to provide enhanced functionality and personalization. These cookies do not store any personally identifiable information. You can set your browser to block or alert you about these cookies, but some parts of the site will not then work. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. Strictly Necessary Cookies: (Always Active) These cookies are necessary for the website to function and cannot be switched off in our systems. After we finish updating our website, you will be able to set your cookie preferences. Readings are made, usually monthly or bimonthly, and consumers are then billed for their usage.Īnalog Devices is in the process of updating our website. The number of units used is recorded on an electricity meter (Figure 2). One unit of electricity is 1 kilowatt-hour (in the U.S, this equates to approximately 10 Amps per hour). What is the Meaning of mA in Electricity?Įlectricity companies charge customers for electricity by the amount of current they use called “units”. In other words, the more current that is used by the phone, the shorter the length of time the battery will last. This means the battery can supply 3000 mA for 1 hour or 6000 mA for 30 minutes or 1000mA for three hours etc. For example, the capacity of a mobile phone battery might be 3000 milliAmp – hours (written as 3000 mAh). The term milliAmp is commonly used when specifying the capacity of a battery. An example would be a single transistor on a silicon chip. Electronic components that use currents less than 1mA are often referred to as microelectronic components or devices. For example, 0.1 mA is equivalent to 100 ♚. Currents that are smaller than 1mA are usually referred to in multiples of microAmps. As electronic components have shrunk in size, the amount of current they use has also gotten smaller, even less than 1 mA. The symbol “µ” (pronounced “mew”) is from the Greek Alphabet. 1 microAmp is abbreviated in writing as 1 ♚. LED standby indicator What is a microAmpere?Ī microAmpere (usually abbreviated as microAmp in spoken language) is one thousandth of a milliAmp or 1 millionth of an Amp. A Light Emitting Diode or LED (Figure 1) typically used to indicate if a piece of equipment is switched on or in standby will normally use between 10 and 30 milliAmps.įigure 1. While the term “milliAmp” is used in spoken communication, it is abbreviated as mA in writing. For example, 0.1 Amps is equivalent to 100 milliAmps and 0.01 Amps is 10 milliAmps. One milliAmp is equivalent is one thousandth of an Amp. Instead of using terms like 0.5 Amps or 0.01 Amps, it is more convenient to express small currents as multiples of “milliAmps”. Engineers use engineering notation (a subset of scientific notation) to avoid using fractions. Electronic components usually use currents that are less than 1 Amp. The “Ampere”, usually abbreviated as “Amp” in spoken language, is the SI unit of electrical current and has the written symbol A. Ampere is the basic unit for measuring electrical current. A milliampere (also milliamp or mA) is 1/1000 of an Ampere.
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