Comparison table of SMT resistor models, providing precise selection for electronic engineering

In the field of electronic engineering, SMT resistors are a common component used to regulate parameters such as voltage and current in circuits. However, there are many types of SMT resistors on the market, and choosing the appropriate model based on demand has become a challenge. In order to help everyone better understand the models and functions of SMD resistors, this article has specially compiled a comparison table of SMD resistor models, hoping to provide practical reference for everyone

1、 Basic parameters of SMT resistors

1 Resistance value: represents the degree of resistance to current, measured in ohms (Ω)

2 Power: represents the maximum power that a resistor can withstand, in watts (W)

3 Temperature coefficient: represents the rate of change in resistance value during temperature changes, measured in ppm/° C

4 Accuracy level: represents the error range of resistance value, usually expressed as a percentage. Common accuracy levels include ± 0.05%, ± 0.1%, ± 0.25%, etc

5 Packaging form: Refers to the shape and size of the resistor, and common packaging forms include surface mount (SMT), perforated components (Through hole), etc

2、 Comparison Table of Chip Resistor Models

The following is an example comparison table for SMT resistor models, for reference only:

|Number | Resistance (Ω) | Power (W) | Temperature coefficient (ppm/° C) | Accuracy level | Packaging form|

|--- | -------- | -------- | -------- | -------- | --------|

|1 | 10 | 10 | ± 0.05% | ± 0.1% | SMT|

|2 | 20 | 20 | ± 0.05% | ± 0.1% | SMT|

|3 | 30 | 30 | ± 0.05% | ± 0.1% | SMT|

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3、 How to choose the appropriate SMT resistor

1 Choose the appropriate resistance value according to the circuit requirements. The selection of resistance should consider the parameters of other components in the circuit to ensure the stability and performance of the entire circuit

2 Choose the appropriate power according to the working environment. High power SMT resistors can withstand larger operating currents, but they also generate more heat. Therefore, when selecting SMT resistors, it is necessary to fully consider the working environment and heat dissipation conditions of the circuit

3 Choose the appropriate model based on accuracy requirements. High precision SMT resistors can improve the stability and reliability of circuits, but they are also relatively expensive. Therefore, when selecting SMT resistors, it is necessary to balance the relationship between accuracy and cost

The comparison table of SMD resistor models provides a convenient and fast selection tool for electronic engineers, which can help everyone quickly find the appropriate SMD resistor. Meanwhile, in practical applications, it is necessary to comprehensively consider the specific requirements of the circuit to ensure its performance and stability