Article · Wikipedia archive · Last revised Jun 3, 2026

TO-263

The Double Decawatt Package, D2PAK, SOT404 or DDPAK, standardized as TO-263, is a semiconductor package type intended for surface mounting on circuit boards. The TO-263 is designed by Motorola. They are similar to the earlier TO-220-style packages intended for high power dissipation but lack the extended metal tab and mounting hole, while representing a larger version of the TO-252, also known as DPAK, SMT package. As with all SMT packages, the pins on a D2PAK are bent to lie against the PCB surface. The TO-263 can have 3 to 7 terminals.

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Jun 3, 2026
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TO-263AA front view
TO-263AA back view
3D model of TO-263AA package

The Double Decawatt Package,12 D2PAK, SOT404 or DDPAK, standardized as TO-263,3 is a semiconductor package type intended for surface mounting on circuit boards. The TO-263 is designed by Motorola.12 They are similar to the earlier TO-220-style packages intended for high power dissipation24 but lack the extended metal tab and mounting hole, while representing a larger version of the TO-252, also known as DPAK, SMT package. As with all SMT packages, the pins on a D2PAK are bent to lie against the PCB surface. The TO-263 can have 3 to 7 terminals.12

  • A pair of MOSFETs in the surface-mount package D2PAK.
    A pair of MOSFETs in the surface-mount package D2PAK.
  • A TO-220 package compared to a D2PAK package.
    A TO-220 package compared to a D2PAK package.

Dimensions

Dimensions of the TO-263-3 (TO-263AA) package in mm.3 source ↗

Variants

Texas instruments has a smaller version of the TO-263: the TO-263 THIN. The height of the TO-263 THIN is 2 mm instead of the standard 4.5 mm.25

See also

See also

References

References

  1. "D2PAK or DDPAK - Double Decawatt Package". eesemi.com. Retrieved 2021-06-29.
  2. "TO-263 Component Package". blog.mbedded.ninja. 2015-04-07. Retrieved 2021-06-29.
  3. "TO-263 Standard". JEDEC. Retrieved 2021-06-29.
  4. "D2PAK (TO-263) MOSFET Power Discrete". Amkor Technology. Retrieved 2021-06-29.
  5. "AN-1797 TO-263 THIN Package" (PDF). Texas instruments (pdf). Retrieved 29 June 2021.
External links