COMPONENT PACKAGES

# DIP Component Package

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 Date Published: March 8, 2015 Last Modified: January 15, 2020

## Overview

 Name Dual In-Line Package Synonyms N Package (Analog Devices) Variants PDIP (plastic dual-inline package)CDIP/CERDIP (ceramic dual-inline package) Similar To Mounting TH Pin Count 4-64 Pitch 2.54mm (0.1mil) Solderability Easiest chip package to solder! Perfect for prototyping, fits into standard 100mill pitch prototype board. Thermal Resistance Land Area The general land area formula for DIP packages A = ((n/2)*2.54) * (width + 1.65mm) where n is the number of pins and the width is the rated package width in mm (e.g. 7.62 (300mil), 15.24 (600mil)).DIP-300-8 : 94.2mm2DIP-300-16: 188.4mm2DIP-300-32: 376.7mm2DIP-600-32: 686.4mm2 Height 5.0mm 3D Models Common Uses Through-hole ICsDIP switchesRelays/reed switches7-segment, 4-digit LCD character display footprints (with different package)

The most common through-hole IC package in history, although it is now mostly superseded by SMT packages. Has standard 100mill pitch spacing. The two rows of legs are usually 300mill (thin-type), or 600mill (fat-type) apart (400mil and 900mil variants are also present). The 600mill package is usually reserved for the larger pin variants. As well as standard through-hole mounting, they can also be inserted into a socket, either by friction or clamping (zero insertion force). Pin numbering is counter-clockwise from the top-left.

A common way to denominate the package is by width and the number of pins in the form DIP-<width in inches>-<num. pins>, e.g. DIP-300-8 would be a 300mill wide 8-pin DIP package. If the width is not specified, e.g. DIP-8, assume it is 300mill wide as this is the most common variant.

Anti-static packaging can easily be made for DIP packages with foam and aluminium foil as shown in the picture below.

Components other than ICs can also use this footprint (although they typically have different packages). One example are some 7-segment, 4-digit LCD character displays, which use the DIP-600-12 footprint.

Large DIP packages are unsuitable for high speed devices because of the long length between the internal die and the external pins.

## PDIP

A Plastic Dual Inline Package (PDIP) is a DIP variant in where the case is made from plastic. It typically formed by fusing or cementing the plastic halves around the leads, however it is not considered to be hermetically sealed due to the porous nature of the plastic1.