Small-outline transistor

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Size comparison of transistor packages. Two surface-mount packages, SOT23 and SOT223, are shown next to through-hole packages Transbauformen.jpg
Size comparison of transistor packages. Two surface-mount packages, SOT23 and SOT223, are shown next to through-hole packages

A small outline transistor (SOT) is a family of small footprint, discrete surface mount transistor commonly used in consumer electronics. The most common SOT are SOT23 variations, [1] also manufacturers offer the nearly identical thin small outline transistor (TSOT) package, where lower height is important. [2] [3] [4] [5]

Surface-mount technology method for producing electronic circuits

Surface-mount technology (SMT) is a method for producing electronic circuits in which the components are mounted or placed directly onto the surface of printed circuit boards (PCBs). An electronic device so made is called a surface-mount device (SMD). In industry, it has largely replaced the through-hole technology construction method of fitting components with wire leads into holes in the circuit board. Both technologies can be used on the same board, with the through-hole technology used for components not suitable for surface mounting such as large transformers and heat-sinked power semiconductors.

Transistor semiconductor device used to amplify and switch electronic signals and electrical power

A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. It is composed of semiconductor material usually with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor's terminals controls the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. Today, some transistors are packaged individually, but many more are found embedded in integrated circuits.

Consumer electronics Electronic equipment intended for everyday home use

Consumer electronics or home electronics are electronic equipments intended for everyday use, typically in private homes. Consumer electronics include devices used for entertainment, communications, and home-office activities. In British English, they are often called brown goods by producers and sellers, to distinguish them from "white goods" which are meant for housekeeping tasks, such as washing machines and refrigerators, although nowadays, these would be considered brown goods, some of these being connected to the Internet. In the 2010s, this distinction is not always present in large big box consumer electronics stores, such as Best Buy, which sell both entertainment, communication, and home office devices and kitchen appliances such as refrigerators.

Contents

SOT23-3, SOT323, SOT416

The SOT23-3 package is very popular and a common package for transistors, and is also used for diodes and voltage regulators. [1]

SOT 23,346,323,416 OKOTOVANy NaRYS K NAHRaTi.png
SOT 23,346,323,416 OKOTOVANy BOKORYS K NAHRaTi.png
SOT23,346,323,416 volny pohled.png
SOT23-3 (SOT23, TO236AB, SOT346, SC59A, TO236AA, SMT3),
SOT323 (SC70-3, UMT3),
SOT416 (SOT523, SC75A, SC90, EMT3)
Dimensions (mm)
SOT23-3 [6] [7] [8] [9] SOT323 [10] [11] SOT416 [12] [13]
A
B
C
D
G1.91.31.0
H
J
K
L0.950.650.5
S
V

SOT23-5, SOT353

SOT 353 - OKOTOVANy NaRYS K NAHRaTi.png
SOT353 - OKOTOVANy BOKORYS K NAHRaTi.png
SOT353 volny pohled.png
SOT23-5 (SOT25, SC74A, SOT753, SMT5),
SOT353 (SC70-5, SC88A, TSSOP-5, UMT5)
Dimensions (mm)
SOT23-5 [14] [1] SOT353 [15] [16]
A2.90±0.102.0±0.2
B1.60±0.101.25±0.10
C1.041.440.81.1
D0.3500.5000.20.3
G0.950.65
H0.050.15≤0.1
J
K
S2.02.2
V

SOT23-6, SOT363

SOT457,363 - OKOTOVANy NaRYS K NAHRaTi.png
SOT457,363 - OKOTOVANy BOKORYS K NAHRaTi.png
SOT457,363 volny pohled.png
SOT23-6 (SOT26, SC59-6, SC74, TSOP-6, SMT6, SM6, Mini6, SOT457),
SOT363 (SC70-6, SC88, TSSOP-6, UMT6, US6, S-Mini6)
Dimensions (mm)
SOT23-6 [1] [17] [18] [19] SOT363 [20] [21]
A2.92.0
B1.6251.25
C1.250.95
D0.40.25
G0.950.65
H0.1
J0.18
K0.38
S2.82.1
V

SOT23-8

SOT 28 OKOTOVANy NaRYS K NAHRaTi.png
SOT28 OKOTOVANy BOKORYS K NAHRaTi.png
SOT28 volny pohled.png
SOT23-8 (SOT28) [1] [22]
Dimensions (mm)
A2.90 ± 0.10
B1.60 ± 0.10
C1.27
D0.3
G0.650 typ.
H0.0762
J0.152
K0.575
S2.80 ± 0.20
L

SOT54

SOT54 is an alternate designation for the JEDEC TO-92 package. [23]

TO-92

The TO-92 is a widely used style of semiconductor package mainly used for transistors. The case is often made of epoxy or plastic, and offers compact size at a very low cost.

SOT143, SOT343

SOT143,343 OKOTOVANy NaRYS K NAHRaTi.png
SOT143,343 OKOTOVANy BOKORYS K NAHRaTi.png
SOT143,343 volny pohled.png
SOT143 (TO253), SOT343
Dimensions (mm)
SOT143SOT343
A
B
C
D
F
G1.781.2
H
J
K
L
R
S

SOT490

SOT490 NaRYS K NAHRaTi.png
SOT490 BOKORYS K NAHRaTi.png
SOT490 volny pohled.png
SOT490 (SOT523F, SC89, EMT3F)
Dimensions (mm)
A
B
C
D
G0.5
J
K
S
L1.0

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 NaRYS K NAHRaTi.png
SOT89 BOKORYS K NAHRaTi.png
SOT89 volny pohled.png
SOT89-3 (TO243AA, SC62, MPT3) [24]
Dimensions (mm)
A4.5
B2.5
C
D
E1.6
F
G1.5
J
K
S
L3

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.

SOT89-5 PuDORYS K NAHRaTi.png
SOT89-5 BOKORYS K NAHRaTi.png
SOT89-5 VOLNy POHLED 1 K NAHRaTi.png
SOT89-5 VOLNy POHLED 2 K NAHRaTi.png
SOT89-5
Dimensions (mm)
A4.6
B2.6
C1.6
D
E
F
G1.5
H
J
K
S
L

SOT223 (SOT223-4)

The SOT223-4 package is a popular package for voltage regulators.

SOT 223 OKOTOVANy NaRYS K NAHRaTi N.png
SOT 223 OKOTOVANy BOKORYS K NAHRaTi N.png
SOT223 volny pohled.png
SOT223-4 (SC73, TO261AA) [25] [26] [27]
Dimensions (mm)
MinTypMax
A1.80
A10.02
b0.600.700.80
b22.903.003.10
c0.240.260.32
D6.306.506.70
e2.3
e14.6
E6.707.007.30
E13.303.503.70

SOT223-5

The SOT223-5 package is a popular package for voltage regulators.

SOT 223-5 OKOTOVANy NaRYS K NAHRaTi N.png
SOT 223-5 OKOTOVANy BOKORYS K NAHRaTi N.png
SOT 223-5 volny pohled.png
SOT223-5 [28]
Dimensions (mm)
MinTypMax
A1.8
A10.020.040.10
A21.551.65
A30.870.91
b0.410.460.51
b22.953.003.05
C0.240.32
D6.456.506.55
E6.867.007.26
E13.453.503.55
e1.27
e15.08
L0.911.14

SOT223-8

The SOT223-8 package is a popular package for bridged quad transistors.

SOT 223-8 OKOTOVANy NaRYS K NAHRaTi N.png
SOT 223-8 OKOTOVANy BOKORYS K NAHRaTi N.png
SOT 223-5 volny pohled.png
SOT223-8 (SM-8) [29]
Dimensions (mm)
MinTypMax
A1.601.70
A10.020.040.10
b0.700.800.90
c0.240.280.32
D6.306.606.70
e1.53
e14.59
E6.707.007.30
E13.303.503.70
L0.750.901.00
ø45°
ø115°
ø210°

See also

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TO-220

The TO-220 is a style of electronic package used for high-powered, through-hole components. The "TO" designation stands for "transistor outline". TO-220 packages have three leads. Similar packages with two, four, five or seven leads are also manufactured. A notable characteristic is a metal tab with a hole, used in mounting the case to a heatsink, allowing the component to dissipate more heat than one constructed in a TO-92 case. Common TO-220-packaged components include discrete semiconductors such as transistors and silicon-controlled rectifiers, as well as integrated circuits.

TO-3

In electronics, TO-3 is a designation for a standardized metal semiconductor package used for power semiconductors, including transistors, silicon controlled rectifiers, and, integrated circuits. TO stands for "Transistor Outline" and relates to a series of technical drawings produced by JEDEC.

2N3904

The 2N3904 is a common NPN bipolar junction transistor used for general-purpose low-power amplifying or switching applications. The type was registered by Motorola Semiconductor in the mid-1960s, together with the complementary PNP type 2N3906, and represented a significant performance/cost improvement, with the plastic TO-92 case replacing metal cans. It is designed for low current and power, medium voltage, and can operate at moderately high speeds. This transistor is low-cost, widely available and sufficiently robust to be of use by experimenters and electronics hobbyists. When looking at the flat side with the leads pointed downward, the three wires emerging from the bottom are connected to, from left to right, the emitter, the base and the collector. Some manufacturers mark "EBC" on the molded part, but all are required to have those connections for a part which is a "2N3904".

2N2222

The 2N2222 is a common NPN bipolar junction transistor (BJT) used for general purpose low-power amplifying or switching applications. It is designed for low to medium current, low power, medium voltage, and can operate at moderately high speeds. It was originally made in the TO-18 metal can as shown in the picture.

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2N7000

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1N58xx Schottky diodes

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The following outline is provided as an overview of and topical guide to electronics:

References

  1. 1 2 3 4 5 "SOT-23 and TSOT package datasheet" (PDF). Amkor Technology. Archived (PDF) from the original on December 19, 2018. Retrieved December 19, 2018. link from https://amkor.com/packaging/leadframe/sot23-tsot/
  2. "Nexperia SOT 23 Package and Dimensions".
  3. "Thin SOT-23 Package Information" (PDF). Vishay Siliconix. Retrieved 4 May 2017.
  4. "Packaging Information". Intersil. Retrieved 4 May 2017.
  5. "Thin SOT-23 Package Information" (PDF). Vishay Siliconix. Retrieved 4 May 2017.
  6. SOT23-3 package drawing; NXP.com
  7. SOT23-3 dummy component package drawing; TopLine.tv
  8. SOT346 package drawing; NXP.com
  9. SC59A dummy component package drawing; TopLine.tv
  10. SOT323 package drawing; NXP.com
  11. SC70-3 dummy component package drawing; TopLine.tv
  12. SOT416 package drawing; NXP.com
  13. SC75A dummy component package drawing; TopLine.tv
  14. SOT25 dummy component package drawing; TopLine.tv
  15. SOT353 package drawing; NXP.com
  16. SOT353 dummy component package drawing; TopLine.tv
  17. SOT457 package drawing; NXP.com
  18. SOT26 dummy component package drawing; TopLine.tv
  19. STO?L (MAXIMS) package drawing; maximintegrated.com
  20. SOT363 package drawing; NXP.com
  21. SOT363 dummy component package drawing; TopLine.tv
  22. SOT28 dummy component package drawing; TopLine.tv
  23. "TO-92 (SOT54)". Nexperia. 2004-11-16. Retrieved 2017-12-12.
  24. SOT89-3 dummy component package drawing; TopLine.tv
  25. SOT223-4 package drawing; NXP.com
  26. SOT223-4 dummy component package drawing; TopLine.tv
  27. SOT223-4 package drawing; semicon-data.com
  28. SOT223-5 package drawing; semicon-data.com
  29. H-bridge MOSFET datasheet in SOT223-8 package; diodes.com