A small outline transistor (SOT) is a small surface mount transistor package commonly used in consumer electronics. The SOT-23 and SOT-323 packages are two of the most common configurations, with dimensions provided for several other SOT package types. SOT packages are used for transistors, comparators, diodes and other simple components due to their small size.

1. Small-outline transistor - Wikipedia, the free encyclopedia
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Small-outline transistor
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SOT transistor packaging
From Wikipedia, the free encyclopedia
A small outline transistor (SOT) is a small footprint, discrete surface mount
transistor commonly used in consumer electronics.
This article or section may contain misleading parts.
Please help clarify this article according to any
suggestions provided on the talk page.
Package configurations [edit]
Two of the most common package configurations are the SOT-23[1] and SOT-323
(SC-70).[2] Other package configurations are SOT-66, SOT-89, SOT-143, SOT-223
and TSOT-23, which is a thinner version.[citation needed]
This package is used for transistors, comparators, diodes and
other simple components. There are several examples of varying types in tables
below. Dimensions are used for
orientation, for exact information (and footprint) is necessary to find appropriate outline drawing.
Ranges for packages type SOT-23, SOT-346, SOT-323, SOT-416
Dimensions for Packages
(in millimeters)
View form the top and from the side
to the component
Range
marking
SOT-
23
SOT-
346
SOT-
323
SOT-
416
3D view
A 2.8 2.7 1.8 1.4
B 1.2 1.3 1.15 0.7
C 0.89 1.0 0.8 0.6
D 0.37 0.35 0.25 0.15
G 1.78 1.9 1.3 1.0
H 0.01 0.01 0.01 0
J 0.086 0.1 0.1 0.1
K 0.45 0.2 0.1 0.2
L 0.89 0.95 0.65 0.5
S 2.11 2.5 1.8 1.45
V 0.6 0.4 0.25 0.2
Ranges for packages type SOT-143, SOT-343
Dimensions for
Packages
(in millimeters)
View form the top and from the side to the
component
Range
marking
SOT-
143
SOT-
343
3D view
A 2.8 1.8
B 1.2 1.15
C 0.89 0.7
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2. Small-outline transistor - Wikipedia, the free encyclopedia
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D 0.39 0.3
F 0.79 0.5
G 1.78 1.2
H 0.01 0.01
J 0.08 0.1
K 0.46 0.15
L 0.445 0.35
R 0.72 0.7
S 2.11 2.0
Ranges for packages type SOT-223-4
View form the top and from the side to the
component
Range
marking
Dimensions for
SOT-223-4
(in millimeters)
3D view
A 6.3
B 3.3
C 1.5
D 0.6
F 2.9
G 2.2
H 0.02
J 0.24
K 1.5
L 0.85
S 6.7
Ranges for packages type SOT-223-5
View form the top and from the side
to the component
Range
marking
Dimensions for
SOT-223-5
(in millimeters)
3D view
A 6.5
B 3.56
C 1.55
D 0.74
F 3.0
G 1.5
H 0.025
J 0.3
K 1.7
L 1.0

3. Small-outline transistor - Wikipedia, the free encyclopedia
https://en.wikipedia.org/wiki/Small-outline_transistor[23/09/2015 17:27:04]
S 6.96
Ranges for packages type SOT-353
View form the top and from the side to
the component
Range
marking
Dimensions for
SOT-353
(in millimeters)
3D view
A 1.8
B 1.15
C 0.8
D 0.1
G 0.65
H 0.013
J 0.1
K 0.1
S 2.0
Ranges for packages type SOT-23-6, SOT-363, SOT-457
Dimensions for
Packages
(in millimeters)
View form the top and from the side to
the component
Range
marking
SOT-
23-6
SOT-
363
SOT-
457
3D view
A 2.9 1.8 2.7
B 1.6 1.15 1.3
C 1.1 0.8 0.9
D 0.4 0.1 0.25
G 0.95 0.65 0.95
H 0 0.013 0.013
J 0.15 0.1 0.1
K 0.6 0.1 0.2
S 2.8 2.0 2.5
V 0.5 0.3 0.4
Ranges for packages type SOT-28
View form the top and from the side to
the component
Range
marking
Dimensions for
SOT-28
(in millimeters)
3D view
A 2.8
B 1.5

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C 0.9
D 0.22
G 0.65
H 0
J 0.09
K 0.55
S 2.6
L 0.425
Ranges for packages type SOT-490
View form the top and from the side to the
component
Range
marking
Dimensions for
SOT-490
(in millimeters)
3D view
A 1.5
B 0.75
C 0.6
D 0.23
G 0.5
J 0.1
K 0.40
S 1.5
L 1.0
Ranges for packages type SOT-89 (SOT-89-3)
View form the top and from the side to
the component
Range
marking
Dimensions for
SOT-89-3
(in millimeters)
3D view
A 4.4
B 2.29
C 1.4
D 0.36
E 1.62
F 0.44
G 1.5
J 0.35
K 0.8
S 3.94

5. Small-outline transistor - Wikipedia, the free encyclopedia
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L 3.0
Ranges for packages type SOT 89-5
View form the top and from the side to
the component
Range
marking
Dimensions
for SOT-
89-5
(in
millimeters)
Free view
A 4.5
B 2.5
C 1.6
D 0.4
E 0.47
F 0.47
G 1.5
H 1.5
J 0.4
K 1.0
S 4.5
L 3.0
See also [edit]
List of electronics package dimensions
References [edit]
1. ^ SOT-23 Package Information. Retrieved 12-23-2011
2. ^ SC-70 Package Information. Analog Devices, Inc. 1995 – 2011. Retrieved 12-23-2011.

6. Small-outline transistor - Wikipedia, the free encyclopedia
https://en.wikipedia.org/wiki/Small-outline_transistor[23/09/2015 17:27:04]
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v · t · e Semiconductor packages
Diode DO-204 · DO-213 / MELF · DO-214 / SMA / SMB / SMC · SOD
Transistor SOT / TSOT · TO-3 · TO-5 · TO-18 · TO-66 · TO-92 · TO-126 · TO-220 · TO-263 / D2PAK
Single row SIP / SIL
Dual row DFN · DIP / DIL · Flat Pack · SO / SOIC · SOP / SSOP · TSOP / TSSOP · ZIP
Quad row LCC · PLCC · QFN · QFP · QUIP / QUIL
Grid array BGA · eWLB · LGA · PGA
Wafer COB · COF · COG · CSP · Flip Chip · PoP · QP · UICC · WL-CSP / WLP
Related topics
Electronic packaging · List of integrated circuit package dimensions · Integrated circuit packaging ·
List of integrated circuit packaging types
Note: It's relatively common to find packages that contain other components than their designated ones, such as voltage regulators in
transistor packages, etc.
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