What is a chip resistor
Chip resistor, commonly known as SMD Resistor, is a kind of metal glass glaze resistor. It is a resistor made by mixing metal powder and glass glaze powder and printing on the substrate by screen printing. It is resistant to humidity and high temperature, and has a small temperature coefficient. It can greatly save the cost of circuit space and make the design more refined.Working principle of chip resistors
Two-terminal electronic components made of resistive materials with a certain structure and capable of limiting the flow of current in the circuit. The resistance that cannot be changed is called a fixed resistor. Variable resistance is called potentiometer or variable resistor. The ideal resistor is linear, that is, the instantaneous current through the resistor is proportional to the applied instantaneous voltage. Some special resistors, such as thermistors, varistors and sensitive components, have a non-linear relationship between voltage and current. Resistors are the most widely used components in electronic circuits, usually in different series according to power and resistance, for circuit designers to choose. Resistors are mainly used in circuits to adjust and stabilize current and voltage. They can be used as shunts and voltage dividers, and can also be used as circuit matching loads.The role of chip resistors
- One of the functions of chip resistors: partial pressure
When a resistor and another component such as a light bulb are connected in series in the circuit, the current flowing through the resistor and the light bulb is the same, and the sum of the respective voltages of the resistor and the light bulb is equal to the total voltage at both ends of the resistor and the light bulb as a whole. At this time, the resistor functions as a voltage divider.
- The second function of chip resistors: shunting
When a resistor and another component such as a bulb are in parallel in the circuit, the voltage across the resistor is the same as the voltage across the bulb, and the sum of the current flowing through the resistor and the current flowing through the bulb is equal to the total current flowing through the resistor and the bulb . At this time, the resistor acts as a shunt.
Summarized by Easybom (https://www.easybom.com/).