Page 132 - CITS - Electronic Mechanic - TT - 2024

ELECTRONICS MECHANIC - CITS

SOT- Small Outline Transistor:

What is SOT?
SMALL OUTLINE TRANSISTOR SOT package is a rectangular surface mount transistor or diode with three or
more gull wings leads. The leads are on two length sides of the package. Popular sizes are the SOT23, SOT143,
SOT223 and SOT89.

1 SOT23: SOT23 is a Plastic surface-mounted package with 3 leads.
3 Integrated circuits (Four and more Terminals Packages):
Dual-In-Line:
Dual in-line package (DIP), sometimes called a DIL package, is an electronic device package with a rectangular
housing and two parallel rows of electrical connecting pins, usually protruding from the longer sides of the package
and bent downward. A DIP is usually referred to as a DIPn, where n is the total number of pins. For example, a
microcircuit package with two rows of seven vertical leads would be a DIP14.
SOIC- Small Outline Integrated Circuit
14 Lead Plastic Dual-In-Line Package
Small Outline Integrated Circuit is the standard package for logic ICs and it is the equivalent (although smaller) of
the DIL package for leaded components.

3.2 SSOP Shrink Small Outline Package
Shrink Small Outline Package is smaller than the SOIC and has a pin spacing of 0.635 mm.

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CITS : E & H - Electronics Mechanic - Lesson 69 - 72