DO-34 Component Package

DO-34 (Diode Outline 34) is a axial 2-lead through-hole component that was common before the advent of SMD technology. It is a hermetically sealed glass package that is used for diodes.

A photo of a SOD-27 (DO-34) package from a Nexperia product page on Farnell¹.

Synonyms

• ALF2: NXP²
• SOD-27: NXP²
• SC-40: JEITA²

NXP also has a SOD-68 package which they also refer to as DO-34³. However, the dimensions of this package align closely with a DO-35 package rather than the SOD-27 which they also label as DO-34.

Dimensions

Below are the dimensions for the NXP SOD-27 (DO-34) package²:

The dimensions for the NXP SOD-27 (DO-34) package².

As per the drawing, the body is 4.25mm long and 1.85mm in diameter. This is slightly larger than the DO-35 package at 3.5mm long and 1.5mm in diameter.

Similar To

• DO-7
• DO-14
• DO-15
• DO-16
• DO-26
• DO-29
• DO-35
• DO-41

References

Footnotes

1. Farnell. NEXPERIA NZX20B,133 - Zener Single Diode, 20 V, 500 mW, SOD-27, 2 Pins, 175 °C, Through Hole [product page]. Retrieved 2024-04-09, from https://ie.farnell.com/nexperia/nzx20b-133/zener-diodes/dp/3939878. ↩

2. NXP. SOD27 - hermetically sealed glass package; axial leaded; 2 leads. Retrieved 2024-04-09, from https://www.nxp.com/docs/en/package-information/SOD27.pdf. ↩ ↩² ↩³ ↩⁴ ↩⁵

3. NXP. SOD68 - hermetically sealed glass package; axial leaded; 2 leads. Retrieved 2024-04-09, from https://www.nxp.com/docs/en/package-information/SOD68.pdf. ↩