Before providing you with the information on how to find quality chip resistors, I will first discuss a few essential aspects of the topic. Let’s get right into it.
What is a Chip Resistor?
They are particular types of resistors that are amongst a variety of components. They are parts of electronic devices that help regulates the voltage and current in them. In fact, a single electronic device may have over a dozen chip resistor or thousands of thin-film resistors. They are IC devices that are manufactured in rectangular or square packages.
Chip options are mostly called surface mounted devices (SMDs), which suggest that they do not have leads like most devices. They are fixed directly onto a printed circuit board. Their lengths and widths are determinants of the power ratings that they provide to an electrical device.
They provide stability and reliability to electronic products because of the low-temperature coefficients they offer.
Functions of the Chip Resistors
Like the capacitor or inductor, a resistor offers a range of functions and fundamental elements in a host of electrical devices. The functions of the SMD’s are as follows:
· Current Control
They help maintain the current flow in an electric circuit, either maintaining the flow or reducing it when it’s over the required amount. For example, in a LED circuit, the connected resistor helps to keep the rated current or reduce it, hence preventing the burnout of the led. The link here https://www.electricaleasy.com/2016/03/basics-of-electrical-power-transmission.html has more on electricity generation and transmission without circuitry.
· Voltage Dividing
When there is a connection of two or more devices in series, it splits an applied voltage, which results in more voltages that are proportional to the value of resistance of the resistor. On the other hand, if the connections are parallel, it splits the current.
· Current Detection
When there is a flow of current through a resistor, the voltage that enables the flow of that current is applied at both ends of the voltage. Measuring this voltage helps you identify the amount of current that is flowing through the circuit.
· Biasing
Biasing is a method carried out by applying a voltage that results in a semiconductor, like a transistor, to function. Biasing is done so that different voltages are applied to various terminals (emitter, collector, and base) of a transistor, respectively.
Other than the resistor’s above-listed function, there are also a couple of functions and applications of SMD’s.
The characteristics of a chip resistor
- They are lightweight and small in size
- They have high reliability and provide stable electrical performances
- They have very high frequency and mechanical strength
- They can adapt to reflow and wave soldering
- They have a low assembly cost
The materials that makeup the chip resistor
They are mainly fabricated from the materials listed below:
- Substrate (ceramic substrate)
- Resistance paste or R paste
- Backing materials
- The positive and side guarding materials
- The primary and secondary protective glass
Advantages of Chip Resistors
· Size
Because they are naturally smaller than most leaded components, they allow more significant levels of miniaturization
· Reduced Inductance
the size and the way the SMD is designed implies that the level of capacitance and inductance is very low, which allows them to be used for higher frequency actions.
· Precision and Tolerance
The technology used for the SMD suggests that they can be constructed to much higher tolerances. They also have lengthy resistance stability.
Limitations
· Power Rating
The power ratings of the SMD’s are much smaller than the standard leaded components. Even though most devices’ current level using the chip resistor is much lower, precaution measures should be taken when designing circuits using hem to make sure the required power rating is maintained. You can check this website to learn about calculating power ratings.
· Rework
As stated earlier, they offer a high level of reliability. Regardless of the level of reliability they provide, there are still occasions when there is a need for rework. The technology isn’t as strong as modules that were designed using leaded components. Nevertheless, if proper techniques and equipment are used, then it is very achievable.
Final Note
For all I know, you can get the best chip resistors at any quality electronic store in your location that deal on premium electrical supply.
