DO-204

General form of the packages described by DO-204. Lead diameter is not controlled less than E from the body to allow for minor irregularities.
1N4148 diodes, in the DO-35 package
A drawing of a DO-41 diode package. The cathode is marked with a silver or white band.

DO-204 is a family of diode semiconductor packages defined by JEDEC. This family comprises lead-mounted axial devices with round leads. Generally a diode will have a line painted near the cathode end.

Dimensions

Variants included in DO-204[1]
Variant Other
standards[2]		 Dimensions (mm)
A B C D E
minmaxminmaxminmaxminmaxminmax
AA DO-7 [3] 25.40 38.10 5.85 7.65 0.46 0.55 2.16 2.71 — 1.27
AB DO-14 [4] 25.40 38.10 5.85 7.62 0.46 0.55 2.75 3.55 — 1.27
AC DO-15 [5] 25.40 38.10 5.85 7.62 0.69 0.88 2.65 3.55 — 1.27
AD DO-16 [6] 11.43 19.05 1.27 2.54 0.23 0.33 — 1.27 — 1.27
AE DO-26 [7] 35.56 38.10 8.75 10.41 0.69 0.99 5.59 6.60 — 2.03
AF DO-29 [8] 25.40 38.10 8.00 9.14 0.74 0.83 3.05 3.81 — 1.27
AG DO-34 [9] 25.40 38.10 2.16 3.04 0.46 0.55 1.27 1.90 — 1.27
AH DO-35 [10] 25.40 38.10 3.05 5.08 0.46 0.55 1.53 2.28 — 1.27
AJ — 11.43 13.97 5.85 7.62 0.49 0.53 2.16 2.66 — 1.27
AK — 11.43 13.97 3.81 4.45 0.36 0.40 1.66 1.90 — 1.27
AL DO-41 [11] 25.40 — 4.07 5.20 0.72 0.86 2.04 2.71 — 1.27
AM — 17.53 38.10 3.18 5.20 0.64 0.91 1.27 2.79 — 1.27
AN — 25.40 — 5.08 5.84 0.71 0.86 2.54 3.05 — 1.27
AP — 25.40 38.10 3.18 4.57 0.74 0.89 2.54 3.81 — 1.27
AR — 27.95 38.10 9.27 9.52 1.22 1.32 6.10 6.35 — 2.54

Common variants

Several common packages are archived in DO-204 as variants, and may be referred to using their alternative names.

DO-7

The DO-7 (also known as DO-204-AA) is a common semiconductor package for 1N34A germanium diodes.[3][12]

DO-35

The DO-35 (also known as DO-204-AH or SOD27) is a semiconductor package used to encapsulate signal diodes.[10][13][2] It is often used to package small signal, low power diodes such as 1N4148 (a 100V, 300mA silicon diode.)

DO-41

The DO-41 (also known as DO-204-AL or SOD66) is a common semiconductor package used to encapsulate rectifier diodes.[11][14] The name is derived from the JEDEC descriptor "Diode Outline, Case Style 41".[2] DO-41 diodes are larger than signal diode packages such as DO-35, which are not required to handle large currents. The most common diode using this packaging is the 1N400x series of rectification diodes.

References

  1. ↑ "JEDEC DO-204 family package specification" (PDF). JEDEC. January 20, 1976. Archived from the original (PDF) on October 10, 2008.
  2. 1 2 3 "Master Index for JEDEC 95 Outlines and Standards" (PDF). JEDEC. Archived from the original (PDF) on June 16, 2017. Retrieved June 16, 2017.
  3. 1 2 "JEDEC DO-7 package specification" (PDF). JEDEC. Archived from the original (PDF) on June 17, 2017.
  4. ↑ "JEDEC DO-14 package specification" (PDF). JEDEC. Archived from the original (PDF) on June 17, 2017.
  5. ↑ "JEDEC DO-15 package specification" (PDF). JEDEC. Archived from the original (PDF) on June 17, 2017.
  6. ↑ "JEDEC DO-16 package specification" (PDF). JEDEC. Archived from the original (PDF) on June 17, 2017.
  7. ↑ "JEDEC DO-26 package specification" (PDF). JEDEC. Archived from the original (PDF) on June 17, 2017.
  8. ↑ "JEDEC DO-29 package specification" (PDF). JEDEC. Archived from the original (PDF) on June 17, 2017.
  9. ↑ "JEDEC DO-34 package specification" (PDF). JEDEC. Archived from the original (PDF) on June 17, 2017.
  10. 1 2 "JEDEC DO-35 package specification" (PDF). JEDEC. Archived from the original (PDF) on June 17, 2017.
  11. 1 2 "JEDEC DO-41 package specification" (PDF). JEDEC. Archived from the original (PDF) on June 17, 2017.
  12. ↑ DO-7 diode package; Interface Bus.
  13. ↑ DO-35 diode package; Interface Bus.
  14. ↑ DO-41 diode package; Interface Bus.
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