Comparison Table of SMT Resistor Power and Size

1、 Introduction

SMT resistors are a type of component widely used in electronic devices, which limit current, voltage, and shunt. In order to facilitate engineers in quickly selecting suitable SMT resistors during the design process, this article has created a comparison table of SMT resistor power and size for your reference

2、 Power and size parameters of SMT resistors

1 Power parameters: The power of SMT resistors is usually expressed in milliwatts (mW), and common power ranges include 1mW, 250mW, 500mW, 1W, etc. When selecting SMT resistors, it is necessary to determine the appropriate power level based on the actual needs of the circuit

2 Dimensional parameters: The dimensions of SMT resistors are usually expressed in millimeters (mm), including width (W), height (T), and length (L). These size parameters will affect the installation method and occupied space of the resistor

3、 Comparison Table of SMT Resistor Power and Size

The following is a comparison table between the power and size of SMT resistors for your reference:

|Power | Width (W) | Height (T) | Length (L)|

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

|1mW | 1.0mm | 0.65mm | 0.5mm|

|1mW-3.9V | 1.0mm | 0.65mm | 0.75mm|

|250mW | 1.65mm | 1.3mm | 0.65mm|

|250mW-3.9V | 1.65mm | 1.3mm | 0.75mm|

|500mW | 2.3mm | 2.0mm | 0.85mm|

|500mW-3.9V | 2.3mm | 2.0mm | 1.0mm|

|1W | 3.25mm | 3.2mm | 1.2mm|

|1W-3.9V | 3.25mm | 3.2mm | 1.4mm|

4、 Conclusion

The comparison table between the power and size of SMD resistors provides engineers with a quick way to select suitable SMD resistors, allowing them to choose appropriate power and size parameters based on actual needs. When using SMT resistors, it is also necessary to consider factors such as the temperature coefficient and accuracy of the resistor to ensure the stability and reliability of the circuit