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The following is a detailed comparison table of resistor packaging size and power, compiled based on international standards (EIA) and mainstream manufacturer specifications:

1、 Comparison of SMT resistor packaging size and power

Note: The imperial code (such as 0603) represents the inch values of length and width (0.06 inches x 0.03 inches).

The metric code (such as 1608) corresponds to the millimeter size (1.6mm × 0.8mm).

2、 Package size of direct insertion resistor (some examples)

3、 Key parameter description

Precision identification:

J: ± 5%, F: ± 1% (such as J in RS-05K102JT).

Resistance code:

Three digit numbers (e.g. 102=1k Ω) are used for ± 5% accuracy,

and four digit numbers (e.g. 1002=10k Ω) are used for ± 1% accuracy.

Temperature coefficient:

K represents 100PPM/° C (such as K in RS-05K102JT).

4、 Selection suggestions

High density design: Prioritize 0201/0402 packaging, but pay attention to welding process requirements.

High power applications: Choose packages of 1206 and above, such as 2512 (1W).

For more detailed dimensional tolerances or special packaging (such as 2225), please refer to the manufacturer's specification sheet.

Comparison Table of Resistance Packaging Sizes

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