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74LS221
74LS221

... Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional ...
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Analysis of the Maximum Wind Energy Penetration in the Island of
Analysis of the Maximum Wind Energy Penetration in the Island of

... This thesis tries to determine and analyse from a technical aspect the penetration of wind energy in the island of Crete in Greece. Crete is an island with an autonomous electric grid and high wind energy potential. The average wind speed is more than 7m/sec while in some areas; especially in the ea ...
RF Ion Source-Driven IEC Design and Operation
RF Ion Source-Driven IEC Design and Operation

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... Note this flip flop, although structurally more complicated, behaves almost identically to the R-S flip flop, where J(ump) is like S(et) and K(ill) is like R(eset). The major difference is that the J-K flip flop allows both inputs to be high. In this case, the output switches state or “toggles”. 20 ...
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ZXRE4041 Description Pin Assignments
ZXRE4041 Description Pin Assignments

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LTM4619 - Dual, 26VIN, 4A DC/DC uModule Regulator

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KA78M05 / LM78M05 / MC78M05 3-Terminal 0.5 A Positive Voltage Regulator Description

... Distributors who are listed by country on our web page cited above. Products customers buy either from Fairchild directly or from Authorized Fairchild Distributors are genuine parts, have full traceability, meet Fairchild's quality standards for handling and storage and provide access to Fairchild's ...
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FMS6364A Four-Channel Standard

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... order to support multiple cell applications. The pack voltage should be divided by the number of series cells to present a single cell average voltage to the VIN input. Note that the first voltage measurement made after the DS2745 is powered or after the ACR register is written will not be valid. Th ...
features htrs series digital encapsulated repeat cycle time delay
features htrs series digital encapsulated repeat cycle time delay

... Upon application of power to the input terminals, the ON delay begins and the output contact transfers. Upon completion of the ON delay, the output contact reverts back to its original position and the OFF delay begins. Upon completion of the OFF delay, the output contact again transfer and the cycl ...
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Mains electricity



Mains electricity is the general-purpose alternating-current (AC) electric power supply. In the US, electric power is referred to by several names including household power, household electricity, house current, powerline, domestic power, wall power, line power, AC power, city power, street power, and grid power.The two principal properties of the electric power supply, voltage and frequency, differ between regions. A voltage of (nominally) 230 V and a frequency of 50 Hz is used in Europe, most of Asia, most of South America and Australia. In North America, the most common combination is 120 V and a frequency of 60 Hz. Other voltages exist, and some countries may have, for example, 230 V but 60 Hz. This is a concern to travelers, since portable appliances designed for one voltage and frequency combination may not operate or may be destroyed by another.The use of different plugs and sockets in different regions provides some protection from accidental use of appliances with incompatible voltage and frequency requirements.
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