Small Outline Transistor (SOT) Package Types

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The small outline transistor (SOT) package family consists of many types of very small and inexpensive surface-mount packages used for discrete components and simple IC's. Table 1 below shows the various types of SOT packages.

Table 1. Types of SOT Packages (not shown in scale)

Image	Name	Typ. Lead Counts	Typ. Dimensions LxWxH (mils)	Typ. Lead Pitch Values (mils)
	SOT-23	3 to 8	115 x 63 x 40	37.5 / 50
	SOT-89	3	180 x 100 x 60	120 / 60
	SOT-143	4	115 x 51 x 35	75 / 65
	SOT-223	4	250 x 130 x 60	180 / 90
	SOT-323	3 to 5	79 x 49 x 35	51 / 26

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