Complete List of Chip Resistor Packaging Dimensions

1、 Introduction

With the continuous development of electronic technology, the application of SMT resistors in various electronic devices is becoming increasingly widespread. SMT resistors have the advantages of small size, light weight, and easy installation, so they have received widespread attention and love. This article will provide you with a detailed introduction to the packaging dimensions of SMT resistors, helping you better understand and choose the appropriate SMT resistor

2、 Type of SMT resistor packaging

1 Four legged flat type (SOT-23)

2 Cylindrical (SOT-223)

3 Surface Mount (SOD-32)

4 Ceramic Packaging (TO-92)

5 Lead free packaging (PTC/SAC3050)

3、 Comparison table for various packaging sizes

The following is a comparison table for various chip resistor packaging sizes for your reference:

|Package type | Size (mm) | Rated power (R) (Ω) | Rated voltage (V)|

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

|SOT-23 | 1.6x1.6 | 0.125 Ω | 25V|

|SOT-223 | 3.2x3.2 | 1.25 Ω | 50V|

|SOD-32 | 1.6x1.6 | 1.25 Ω | 50V|

|TO-92 | 2.5x2.5 | 1.0 Ω | 50V|

|PTC/SAC3050 | 3.2x3.2 | 1.0 Ω | 50V|

4、 How to choose the appropriate SMT resistor

1 Select the appropriate rated power and rated voltage according to the circuit design requirements

2 Choose the appropriate packaging size based on the actual installation space. Generally speaking, smaller circuit boards can choose smaller packaging sizes, while larger circuit boards can choose larger packaging sizes

3 Pay attention to the accuracy and temperature coefficient of SMT resistors. A higher precision SMT resistor can provide more accurate current measurement results, while a lower temperature coefficient SMT resistor can reduce the impact of temperature changes on current measurement

5、 Conclusion

A comprehensive range of packaging sizes for SMD resistors can help you better understand and choose the appropriate SMD resistor. In practical applications, it is also necessary to choose the appropriate SMT resistor based on specific circuit design requirements and installation space. I hope this article can provide you with useful information about SMT resistors. I wish you better results in the design and manufacturing process of electronic devices