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They are distinguished on the basis of the pitch of the package.
#SURFACE MOUNT CAPACITOR CODE CHART PDF SERIES#
Resistors come in different watt ratings such as 1/16, 1/10, 1/8 and 1/4 in 1-100 megaohm resistance for different sizes (0402, 0603, 0805, 12 etc.) and tolerance.Ģ: Surface Mount Resistor Networks: Also known as R-packs, these are commonly used as replacements for a series of discrete resistors i.e. The nickel underplating helps to preserve the solderability of terminations.
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It also has soldered terminations on its sides which have an adhesion layer on the ceramic substrate and nickel underplating followed by solder coating. Thin film resistors are built with the resistive element on a ceramic base with a protective coating on top.The resistance value is then obtained by checking the variance between the composition of resistive paste before screening and after screening along with laser trimming of the film. Thick surface mount resistors are built by screening a resistive film onto a flat alumina surface.Passive surface mount resistors and capacitors also come in various case sizes so they can be used in all kinds of applications.ġ: Surface Mount Discrete Resistors: These are of two main types, thick film, and thin film.
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Their shapes are usually either rectangular or cylindrical. Passive Surface Mount Electronic Components (SMCs):Ĭomponents that do not provide any additional power gain to the circuit or device are called passive components. There are two basic types, active and passive surface mount electronic components. The SMT field is constantly evolving and changing to help resolve the various issues that arise from the standardization of components and economic and technical issues included. Some are available with the discount while others are of the best quality. There are many standards of different components to sort out from while some may not have any at all. For example, they should withstand high temperature, they should be properly placed and soldered so the product meets the demands. The use of components, lead configurations, and package types to form a product is not exactly simple Particularly in SMT, the use of components is complex due to the range of requirements. The components used in electronics are not always available for SMT, however, this can be solved by using mix-and-match surface mount assembly. Surface Mount Technology (SMT) is quite similar to components for Through-hole Technology in terms of function however, they are comparatively better in terms of electric performance.