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AC-DC Adapters

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About AC-DC Adapters

AC/DC adapters accept AC input voltage directly from a wall outlet, and output DC voltage.  The primary configurations are wall-mount, where the adapter unit plugs directly into a wall and the DC lead then goes to the DC device, and desk mount, where the adapter unit is in-line between the AC plug and the DC output.  Many DC devices use this type of adapter or power supply such as household items, printers, low-voltage DC boards, etc. 

Nominal AC input choices for AC/DC adapters include 115 VAC, 230 VAC, 115/230 VAC selectable, 115/230, VAC wide-ranging or auto-select, 220 VAC European, and 100 VAC Japan.  Common DC output choices for AD/DC adapters include +3.3V, +5V, -5V, +12V, -12V, +15V, -15V, +24V, -24V, +48V, and –48V.  AC/DC adapters may be capable of more than one output.  Many AC/DC adapters have a rating of the nominal total DC power supplied. Input plug styles, or AC pin (blade) type for AC/DC adapters can be two conductors or three conductors.  Two conductor types include two round pin style, American flat pins, German round pin, etc.  Three conductor types include three-pin UK style, American flat pin / grounded, three round pins, etc.  The international pin or blade style for two and three conductor plug types. The shape, size and configuration vary.  Output connectors can be DIN plug type, Mini DIN type, bayonet nut coupling (BNC), and thread nut coupling connectors (TNC). DIN 41612 is widely accepted as a standard for interconnect applications in the telecommunications and data markets worldwide.  Mini DIN types include three, four, five, six, seven and eight pin Mini-DIN styles.  A Bayonet Nut Coupling is a connector with bayonet-style couplings used for jacks on instrument front panels.  A Threaded Nut Coupling Connector is an input / output electronic interconnect device similar to a BNC connector but with threaded couplings. 

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Products & Services Related to AC-DC Adapters

AC Power Sources
AC power sources provide alternating power and typically have adjustable output values for the testing of component response at various voltages, current and frequency levels.
Computer Power Supplies
Computer power supplies convert alternating current (AC) line to direct current (DC) line, needed by the computer.
Current Sources
Current sources provide reliable current for electrical component testing and for powering specialized components.
DC Power Supplies
DC power supplies accept an input power and output the desired form of DC power. Common types of DC power supplies include linear power supplies, switching power supplies, DC-DC converters, and silicon controlled rectifier (SCR) type power supplies.
DC-AC Inverters
DC to AC inverters are used for converting direct current (DC) into alternating current (AC). They are also known as DC to AC converters.
DC-DC Converters
DC-DC converters accept DC input and provide regulated and/or isolated DC output in various applications including computer flash memory, telecommunications equipment, and process control systems.
RF Generators
RF generators and high frequency power supplies provide the power required for plasma generation, induction heating, and radar or communications applications.

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Part Numbers for ACDC Adapters

Part # Distributor Manufacturer Product Category Description
ACDC9V-H Digi-Key Silicon Laboratories Inc Programmers, Development Systems ADAPTER AD/DC 9V 100MA HONG KONG
ACDC9V-J Digi-Key Silicon Laboratories Inc Programmers, Development Systems ADAPTER AD/DC 9V 100MA JAPAN
ACDC9V-K Digi-Key Silicon Laboratories Inc Programmers, Development Systems ADAPTER AD/DC 9V 100MA KOREA
ACDC9V-E Digi-Key Silicon Laboratories Inc Programmers, Development Systems ADAPTER AD/DC 9V 100MA EUROPE

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