Explain in detail the classification and application of Tian'er precision resistors and how to choose and purchase them?

Tian'er Precision Resistor is a commonly used electronic component mainly used for current measurement, voltage division, resistance matching and other functions in electronic circuits. According to different materials, structures, and applications, Tian'er Precision Resistors can be classified into multiple different categories.
Classification of Tian'er Precision Resistance Materials
Carbon film resistance: Carbon film resistance is the most common type of resistance, and its basic structure is to coat a layer of carbon film on a ceramic or glass substrate, then form wires and films through etching, and finally package them. Carbon film resistors have low power dissipation capacity and are commonly used in low-power circuits.
Metal film resistance: Metal film resistance is formed by covering the ceramic with a metal film and forming it through etching and sintering. Metal film resistors have high power dissipation capacity and are commonly used in medium to low power circuits.
Low temperature resistance: Low temperature resistance is a type of resistance designed for high temperature environments, and its material can maintain relatively low resistance values in high temperature environments without causing significant errors.
Classification of Tian'er Precision Resistor Structures
Surface mount resistance (SMD resistance): Surface mount resistance is a type of resistance that is directly connected to a circuit board by welding and does not require perforation for fixation. Surface mounted resistors can save space and are suitable for the design of high-density integrated circuit boards.
Perforation resistance: Perforation resistance is a type of resistance that is fixed to a circuit board through perforation and connected by welding. Perforated resistors are suitable for traditional circuit board design and have high stability and reliability.
Tian'er Precision Resistor Usage Classification
Current measurement resistance: Current measurement resistance is used to measure the current in a circuit, with low resistance values and high power dissipation ability. Commonly used for current detection and protection in electronic devices.
Voltage divider resistor: Voltage divider resistor is used in voltage divider circuits to reduce the magnitude of voltage. Commonly used for voltage divider function in sensor circuits and analog circuits.
Electromotive force resistance: Electromotive force resistance is used to generate stable electromotive force and is commonly used in standard power supplies and testing instruments.
When purchasing Tian'er precision resistors, the following aspects need to be considered:
Resistance range: Select an appropriate resistance range according to the requirements of the circuit design to ensure that it meets the working requirements of the circuit.
Tolerance level: Select an appropriate tolerance level based on the accuracy requirements of the circuit. Common tolerance levels include ± 1%, ± 5%, etc.
Power dissipation capability: Based on the power requirements in the circuit, select the appropriate power dissipation capability to ensure that the resistor can work normally without overheating or damage.
Packaging form: Select an appropriate packaging form based on the design and size requirements of the circuit board, such as SMD resistors or perforated resistors.
Reliability and stability: Choose brands and models with good reliability and stability to ensure that the resistance will not experience excessive drift or damage during long-term use.
The selection of Tian'er precision resistor requires comprehensive consideration based on material, structure, usage, and specific circuit design requirements to ensure that the resistor can work properly in the circuit and meet accuracy requirements. If you are unsure, you can choose Shunhai Technology, and there are dedicated technical personnel to answer your questions.