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Why Surface Mount Crystals are the best choice for PCB design?

What is meant by Surface Mount Crystals?

Compact, accurate quartz surface mount crystals are soldered directly onto a printed circuit board (PCB). Electrical devices, like computers, radios, and cell phones, are employed to maintain a precise oscillation frequency. Through-hole crystals cannot compete with the many benefits of surface mount crystals, and they are becoming more and more common in a range of applications. The quartz used in electronic circuits is a tiny, flat piece. They are frequently utilized in high-frequency applications when space is at a premium.

Why are surface mount crystals so popular?

There are a lot of causes for its popularity. In comparison to through-hole crystals, surface mount crystals are firstly significantly smaller. As a result, your PCB can be greatly expanded. Second, your project will be more trustworthy because this mount crystal is less prone to break during assembly. These crystals offer outstanding dependability and long-term stability, making them perfect for wearable, IoT, and many other applications. They are more suitable for usage in tiny devices since they are thinner and smaller than conventional crystals. Additionally, they require less lead time to produce and are simpler to put together. These mount crystals are more durable against shock and vibration. The stability of the final product depends on the stability of the crystal. The success of the product depends on choosing the proper crystal.

Specifications of surface mount crystals:

  • Constant frequency across temperature and driving level
  • range of frequencies for all models (6-156.25MHz)
  • dependable accuracy
  • excellent performance with shocks
  • smaller size

Applications of surface mount crystals:

  • Surface Mount Crystalsare an advanced technology many electronic manufacturers use to build their products. It allows them to create smaller, more efficient circuits.
  • SMD components are often used in high-end consumer electronics such as smartphones and tablets.
  • They also have applications in industrial equipment like medical devices.

How to solder SMD components using a hot air soldering station?

Soldering is a relatively simple process. Apply some flux, warm the surface, and then solder. However, soldering SMD components requires a small amount of talent and a few tools and supplies. These days, surface-mount components are used in electronic PCB assemblies (SMT). A typical soldering iron can be used to solder some SMT parts. However, they cannot use it to solder components with terminations on the part’s underside. Using a soldering iron might be challenging to solder components with small, tightly spaced leads. A hot-air soldering approach speeds up the process and results in solid solder junctions that do not leave solder bridges on the leads.

  • The solder joint, the component, and PCB must be exposed to enough hot air using the fundamental procedure. The temperature and speed of the hot air needed will vary depending on the current amount of the substances and the kind of solder being utilized. The temperature should be adjusted to ensure that the solder melts down, not including injuring the element or the electrical circuit board.
  • Similarly, the airflow volume should be as high as it can be without disrupting other SMT components. The effects on neighboring components will be reduced using a nozzle with the proper size and shape. Numerous nozzles from Circuit Specialists are compatible with the vast majority of hot-air soldering stations.
  • Before attaching the component, there should be enough melted and hardened solder on the circuit board’s solder pads. For the proper solder joint to form and to keep the component in place while hot air is supplied, additional flux is needed. The most common type of flux used is paste flux because it is simpler to handle and creates a sticky surface that stops the component from moving unintentionally.
  • The component is then positioned solidly on the solder lines, and the warm-air soldering location wand is positioned precisely on top of the section. The warmed air is administered until the solder melts and bonds to the component’s leads. A component and PCB will be harmed by excessive heat and time, while a cold solder joint will result from insufficient heat and time.
  • It can be necessary to change the three variables of temperature, air velocity, and time to get the desired outcome. Quality solder junctions are the result of using the proper technique, as well as the right tools and supplies. The method is a learned procedure that is improved via practice.
  • Surface-mount components can be soldered with a hot-air soldering station, which provides strong solder joints, saves time, and reduces the risk of damaging the component or the circuit board.

Tips for knowing the consequences of surface mount crystals: 

  • SMD stands for the surface-mounted device. A component has been soldered onto the circuit board instead of inserted through a hole. In most cases, SMD parts have smaller footprints and less electrical resistance than through-hole parts.
  • SMD technology allows for faster assembly times and higher production rates. This technology also reduces the amount of space needed on the PCB and is more cost-effective because there is no need to drill holes or insert components.
  • SMT allows the mounting of electronic parts such as resistors, capacitors, inductors, diodes, transistors, ICs, and other devices onto printed circuit boards (PCBs).
  • Surface mount technology is an essential process in manufacturing and has revolutionized the electronics industry over the last few decades and continues to be one of the most important techniques used in modern electronics production. This technology is widely used in consumer products.


These crystals are an assembly technique used by manufacturers to place components on circuit boards. They have a smaller profile and are more compact than through-hole crystals. ChipSun can satisfy your needs for surface mount Crystals. . Don’t hesitate to contact us by phone or email to let us know your needs. Thanks to our electrical testing capabilities, we can provide complete certification and reliability assurance processing for the most demanding needs.

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