DIP Component Package

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1. Overview


DIP (Dual In-Line Package)


  • FDIP (ST Microelectronic’s name for DIP with transparent lid[3])

  • N Package (Analog Devices)

  • DIL (Mitsubishi[2])

Similar To


  • PDIP (plastic dual-inline package)

  • CDIP/CERDIP (ceramic dual-inline package)



Pin Count



2.54mm (0.1mil)


Easiest chip package to solder! Perfect for prototyping, fits into standard 100mill pitch prototype board.

Thermal Resistance

Package LxWxH

5.0mm high

Typical PCB Land Area

3D Models

See below.

Common Uses

  • Through-hole ICs

  • DIP switches

  • Relays/reed switches

  • 7-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The most common through-hole IC package in history, although it is now mostly superseded by SMT packages.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.

dip 16 component package 3d render
Figure 1. A 3D render of the DIP-16 component package.

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.

making antistatic packaging for dip ic with aluminium foil
Figure 2. Anti-static packaging can easily be made for DIP packages with foam and aluminium foil.

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.

motorola mc68000 dip package 640x314
Figure 3. The iconic 1979 Motorola 68000 CPU in a DIP-600-64 package.

3. Land Area

The general land area formula for DIP packages is:

\[A = (\frac{n}{2})*2.54) * (width + 1.65mm)\]

\(n\) is the number of pins
\(width\) is the rated package width in mm (e.g. 7.62 (300mil), 15.24 (600mil))

  • DIP-300-8 : 94.2mm2

  • DIP-300-16: 188.4mm2

  • DIP-300-32: 376.7mm2

  • DIP-600-32: 686.4mm2


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 plastic[1].

6. Transparent Lids

Many EPROM devices in the 1970’s-1980’s were made in a DIP package with a transparent lid. The lid had a transparent section made from quartz which would allow the EPROM to be erased used ultraviolet light (quartz is transparent to many wavelengths of UV lights, whilst many other "clear" materials are not).

m5l2764k eeprrom
Figure 4. Photo of the Mitsubishi M5L2764K EPROM (note, one "E" not two, it’s "erasable" but not "electronically erasable") with a transparent lid in a "DIL" (DIP) package.



Geoffrey Hunter

Dude making stuff.

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This work is licensed under a Creative Commons Attribution 4.0 International License .

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