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The codes given in the chart below usually tell the length and width of the components in tenths of millimeters or hundredths of inches. For example, a metric 2520 component is 2.5 mm by 2.0 mm which corresponds roughly to 0.10 inches by 0.08 inches (hence, imperial size is 1008).
The Thin shrink small outline package has a smaller body and smaller lead pitch than the standard SOIC package. It is also smaller and thinner than a TSOP with the same lead count. Body widths are 3.0 mm, 4.4 mm and 6.1 mm. The lead counts range from 8 to 80 pins. The lead pitches are 0.5 or 0.65 mm.
The SOIC package is shorter and narrower than DIP, the side-to-side pitch being 6 mm for an SOIC-14 (from lead tip to lead tip), and the body width being 3.9 mm. These dimensions differ depending on the SOIC in question, and there are several variants.
The TSOP package was developed to fit the reduced package height available in a PCMCIA PC ... Body width (mm) Body length (mm) Lead pitch (mm) TSOP28 28 8.1 11.8 0.55 ...
The size of the Mini Small Outline Package is only 3mm × 3mm for the 8 and 10 pin versions [1] and 3mm × 4mm for the 12 and 16 pin version. [2] [3] The small package offers a small footprint, short wires for improved electrical connections, and good moisture reliability. [1] Some versions have an exposed pad on the bottom side.
The QIP, sometimes called a QIL package, has the same dimensions as a DIL package, but the leads on each side are bent into an alternating zigzag configuration so as to fit four lines of solder pads (instead of two with a DIL). The QIL design increased the spacing between solder pads without increasing package size, for two reasons:
Dimensional weight, also known as volumetric weight, is a pricing technique for commercial freight transport (including courier and postal services), which uses an estimated weight that is calculated from the length, width and height of a package. The shipping fee is based upon the dimensional weight or the actual weight, whichever is greater.
The standard [2] includes multiple package variants: [3] [4] DO-214AA, also known as SMB, [5] is the middle size. DO-214AB, also known as SMC, [6] is the largest size.