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Stocking Manufacturer Tips When Purchasing Surface Mounted Devices For Your Business

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Posted March 26, 2019

Stocking surface-mounted devices (SMDs) allow companies and hobbyists to create, repair, and replace electronic components in specific devices. These devices are optimal for both automated and manual assemblies like reflow ovens and pick-and-place systems. Several do-it-yourselfers are now looking to stock and use SMDs to develop, fix, or enhance electronic machines. To stock better SMDs, it’s important to know the specific components that help make up a well-oiled piece of equipment.

Image credit: PowerRick | Free image via Pixabay

Image credit: PowerRick | Free image via Pixabay

Different Surface Mounting Techniques

Many modern electronic devices use installed SMDs with the help of Surface Mount Technology (SMT). A surface mounted device distributor can help supply the required components for specific types of electronics. Active and passive surface mount components form three major classifications of SMT assembly. These categories are:

– Type I SMT

This assembly primarily uses surface mount components using either single- or double-sided techniques.

– Type II SMT

A combination of both Type I and Type II SMTs. This assembly doesn’t contain active SMDs underneath the board or plate. It may, however, include discrete SMDs at the bottom.

– Type III SMT

This technique makes use of discrete SMDs like resistors, capacitors, and transistors installed underneath boards.

Electronic devices using SMTs don’t have to be large. Rohm Co Ltd developed a surface-mounted aspherical lens using SMTs with dimensions of 2.9 x 2.4 millimeters. Its minuscule size and slim profile allow this lens to be useful for compact digital cameras and smartphones.

Purchasing Tips for Stocking SMDs for Businesses

Looking at the market for stocking SMDs requires knowledge about the different components needed for various electronics. The following are factors to consider when buying specific SMDs for your business.

Things to Consider When Buying Capacitors

Capacitors have the “capacity” to store energy as an electrical charge. These components produce a potential difference or Static Voltage across plates. Its ability is akin to using a small rechargeable battery. The following are selection priorities to consider when buying capacitors:

– Working voltage

Electronic circuits suggest the use of standard capacitor voltages of about 50% to 60% of the working voltage. Capacitors with this average working voltage help improve overall reliability.

– Package

Capacitors have two package classifications: surface mount and traditional lead. Buy surface mounted capacitors for your business’ automated manufacture.

– Ripple current

Consider the ripple current if you’re purchasing capacitors for high-current applications. Still, you may skip this factor if you’re looking for capacitors for timing, normal coupling, and decoupling operations.

Image credit: olafpictures | Free image via Pixabay

Image credit: olafpictures | Free image via Pixabay

Things to Consider When Buying Inductors

Inductors are electrical components with two-terminal constructions designed for opposing passing currents. These parts store energy as magnetic fields when an electric current passes. Inductions and electromotive forces surface to resist any change in currents. Consider the following factors when looking at the market for inductors:

– Size

Radio frequency (RF) applications use small-sized inductors with ferrite cores for power. Power circuit applications use large inductors along with filter capacitors.

– DC resistance

Look for inductors modeled in series with resistors to avoid a reduction in overall efficiency.

– Shielding

Inductor shielding components can help reduce magnetic coupling between parts. Proper shielding may become a practical solution in small-spaced applications.

– Saturation current

The inductance drop comes from the DC current running through an inductor. This process is the saturation current, and its value equates to the component’s capacity to store specific amounts of magnetic flux densities.

Things to Consider When Buying Resistors

Resistors are passive SMDs to create resistance in electric currents. Strategic placements of these components prevent electronic devices like brilliant lights from an overproduction of power. Buy the right resistors to stock in your business by knowing the right factors to consider:

– Construction type

Resistors come with three construction types: fixed, variable, and physical quality. Fixed resistors have unchanging resistances. Variable resistors have adjustable resistance. Physical quality resistors are akin to chameleons as these parts can change resistances depending on their physical traits.

– Resistance material

The material used in the construction of resistors plays a vital role in its ability to resist electric current. These materials may include:

  • Carbon film
  • Thick and thin films
  • Wire Wound
  • Foil
  • Metal film

– Intended application

Think about the implementation of the resistor during purchase. Different resistors are usable in various equipment like powering LED lights, blower motors, and electrical measurement devices.

Other SMDs that you should consider as a stocking manufacturer for your business are ferrite beads, electrolytic capacitors, and tantalum. Always consider the amount of SMD components needed for your electronic devices. Reflect on your company’s budget to avoid overspending from buying more SMDs than you actually need.

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