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]

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, MO-178AA, 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, MO-178AB, 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]

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
C1.5 ± 0.1
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. It was introduced by Philips. [25]

SOT 223 OKOTOVANy NaRYS K NAHRaTi N.png
SOT 223 OKOTOVANy BOKORYS K NAHRaTi N.png
SOT223 volny pohled.png
SOT223-4 (SC73, TO261AA) [26] [27] [28]
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 [29]
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) [30]
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-92 semiconductor package

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.

TO-220

The TO-220 is a style of electronic package used for high-powered, through-hole components with 0.1 inches (2.54 mm) pin spacing. 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.

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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. 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. 1: 264–270.
  26. SOT223-4 package drawing; NXP.com
  27. SOT223-4 dummy component package drawing; TopLine.tv
  28. SOT223-4 package drawing; semicon-data.com
  29. SOT223-5 package drawing; semicon-data.com
  30. H-bridge MOSFET datasheet in SOT223-8 package; diodes.com