Detailed explanation of chip resistor package dimensions

With the continuous miniaturization and high performance of electronic products,Chip resistorAs a basic component in electronic components, the selection of its package size has become particularly important. Learn about the various patchesresistanceThe package size not only helps to design a reasonable circuit board layout, but also improves the stability and reliability of the product. This article will provide a comprehensive introduction to common chip resistor package sizes, with detailed dimensional illustrations to help electronic engineers and technology enthusiasts quickly master relevant knowledge.

The package size of a chip resistor usually refers to its physical size, which mainly includes length, width and thickness. Common package size standards are mostly expressed in imperial units (inches) and metric units (millimeters). The choice of package size directly affects the power carrying capacity, thermal performance and installation process of the resistor.

At present, the mainstream chip resistor package sizes on the market mainly include 0201, 0402, 0603, 0805, 1206, 1210, 1812, 2010, etc. The specific dimensions corresponding to each size are as follows:

0201：0.6mm × 0.3mm

0402：1.0mm × 0.5mm

0603：1.6mm × 0.8mm

0805：2.0mm × 1.25mm

1206：3.2mm × 1.6mm

1210：3.2mm × 2.5mm

1812：4.5mm × 3.2mm

2010：5.0mm × 2.5mm

The package size of the chip resistor is closely related to its power level. The larger the package, the higher the power it can usually handle. For example:

0201, 0402 packages are generally 1/20W to 1/16W

0603 package is 1/10W

0805 package is 1/8W

1206 package is 1/4W

1210 and above packages can withstand 1/2W or even higher power

Choosing the appropriate power level is critical to circuit stability and longevity.

Small-size packages such as 0201 and 0402 are mainly used in products with extremely high space requirements such as mobile phones and smart wearable devices; while larger sizes such as 1206 and 1812 are mostly used in power modules, industrial equipment and other scenarios that require higher power.

The rated power, heat dissipation capacity, installation space and production process of the resistor should be comprehensively considered during design. A package that is too small may not meet the power requirements, and a package that is too large wastes space and cost.

Size affects not only power and thermal performance, but also the noise characteristics and stability of the resistor. Resistors in larger packages tend to have lower noise and better long-term stability.

Internationally accepted package size standards such as EIA (Electronic Industries Association) standards ensure that chip resistors produced by different manufacturers have good interchangeability and facilitate design and procurement.

Package size drawings usually include length, width, thickness and lead size. Understanding these parameters can help with accurate selection and layout. It is recommended to refer to the specific product data sheet.

The package size of chip resistors is an important parameter that cannot be ignored in electronic design. By understanding the various package sizes from 0201 to 2010 and their corresponding power levels, application fields and performance characteristics, designers can choose resistor models more rationally and improve the overall performance and reliability of the circuit. I hope that the complete diagram of chip resistor package dimensions in this article can provide a valuable reference for your electronic design.