A small outline transistor (SOT) is a family of small footprint, discrete surface mounttransistor commonly used in consumer electronics. The most common SOT are SOT23 variations,[1]. SOT23-5 differs from SOT23 in a wider body of 1.6 mm (0.063 in) instead of 1.3 mm (0.051 in). Also, manufacturers offer the nearly identical thin small outline transistor (TSOT/TSOP) package, where lower height is important.[2][3][4][5]
SOT23, SOT323, SOT416
The SOT23 package is very popular and a common package for transistors, as well as diodes and voltage regulators.[1]
SOT23-5, SOT353, SOT553
SOT23-6, SOT363, SOT563
SOT23-8
SOT54
SOT54 is an alternate designation for the JEDEC TO-92 package.[28]
SOT23-4, SOT143, SOT343
SOT490
SOT89-3
The SOT89-3 electrically only has three leads (contact/pin). The wide lead (tab) is physically part of the middle lead on the other side of the package. Some call this package a SOT89-4, since it visually appears to have four leads when looking down at the part.
SOT89-5
The SOT89-5 electrically only has five leads (contact/pin). The middle lead is physically part of the middle lead on the other side of the package. Some call this package a SOT89-6, since it visually appears to have six leads when looking down at the part.
SOT223 (SOT223-4)
The SOT223-4 package is a popular package for voltage regulators. It was introduced by Philips.[32]
SOT223-5
The SOT223-5 package is a popular package for voltage regulators.
SOT223-8
The SOT223-8 package is a popular package for bridged quad transistors.
^ a b c d e"SOT-23 and TSOT package datasheet" (PDF). Amkor Technology. 2021. Archived (PDF) from the original on December 19, 2018. Retrieved 2022-05-25. link from amkor.com/packaging/leadframe/sot23-tsot
^"Nexperia SOT 23 Package and Dimensions".SOT23 and SOT 23-3 with the smaller body are also known as TO-236AB.
^"SOT457 Package information" (PDF). NXP. 2018-05-05. Retrieved 2022-05-25. plastic, surface-mounted package (TSOP6); 6 leads; 0.95 mm pitch; 2.9 mm x 1.5 mm x 1 mm body
^"SOT363 Package information" (PDF). NXP. 2018-05-09. Retrieved 2021-09-07. plastic, surface-mounted package; 6 leads; 0.65 mm pitch; 2mm x 1.25 mm x 0.95 mm body
^Hollander, Dave (1995). "Packaging trends and mounting techniques for power surface mount components". Proceedings of 1995 International Conference on Power Electronics and Drive Systems. PEDS 95. Vol. 1. pp. 264–270. doi:10.1109/PEDS.1995.404911. ISBN 0-7803-2423-4. S2CID 109636238.