P0402

DC Resistance (DCR) - Parallel:	53.21 mOhm
Height:	0.310" (7.87mm)
Size / Dimension:	0.715" L x 0.590" W (18.16mm x 14.99mm)
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 130°C
Ratings:	--
Shielding:	Unshielded
DC Resistance (DCR) - Series:	212.8 mOhm
Series:	Tomcat
Current Rating - Series:	1.77A
Current Rating - Parallel:	3.54A
Tolerance:	±20%
Inductance - Connected In Series:	161.8µH
Inductance - Connected In Parallel:	40.5µH
Number of Coils:	2
Part Status:	Obsolete
Packaging:	Tube

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Arrays

A P0402 application field is the use of arrays. An array is a data structure that consists of a collection of elements, where each element is identified by one or more indices. Each element in an array is typically stored in a memory location. Examples of arrays include vectors, matrices, and multidimensional arrays. In terms of applications, arrays are widely used in computer programming to store and manipulate data. They are highly useful for storing data that is structured in a certain way and can easily be accessed by elements with the same structure. For example, arrays might be used to store a set of related data such as a two-dimensional array that stores the coordinates of a point in a graph, or a three-dimensional array that stores the values of a function. Moreover, arrays can be used to solve computational problems that involve using a large amount of data, such as sorting or searching. For example, a sorting algorithm might be designed to use an array data structure, in which an element is compared to every other element in the array until the array is sorted.

Signal Transformers

Another application field of P0402 is signal transformers. Signal transformers are transformers that convert electrical signals from one form to another. They are often used to interface a circuit to a particular load or signal source, or to reduce or increase the level of a signal without changing its characteristics. Signal transformers come in a variety of shapes and sizes, which depend on the type and nature of the signal they are transforming. For example, some signal transformers are designed to operate with low-amplitude AC signals, while others are designed to operate with high-amplitude DC signals. Moreover, signal transformers can be designed to operate with analog or digital signals. In terms of working principle, signal transformers transform electrical signals by exploiting electromagnetic induction. That is, when an electrical signal is applied to the primary winding of a transformer, a varying magnetic flux is generated in the core of the transformer. This flux exhibits a certain pattern of induction in the secondary winding, which induces an electromotive force and a corresponding current flow in the secondary winding. Thus, the signal is transformed from one form to another. Moreover, signal transformers can also be used to isolate signals, whereby a signal on the input is transferred to the output but current does not flow between the two windings. Thus, signal transformers can be used to isolate sensitive electronic circuits from each other, isolating them from direct electrical interference.

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