SOD-323 COMPONENT PACKAGE

SOD-323 Component Package

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Overview

SOD-323 (Small-outline Diode 323) is a family of 2-lead SMD component packages, commonly used for diodes.

The are four variants, with the key differences being:

  • SOD-323: Bent leads.
  • SOD-323F: Flat leads (better heatsinking).
  • SOD-323FL: Flat leads, with one longer than the other (even better heatsinking).
  • SOD-323HE:

Solderability: Reflow is recommended. Easy to solder by hand.

Pitch: 2.2mm1

Similar To:

SOD-323 (Standard Variant)

SOD-323 is a 2 lead, SMD component package commonly used for diodes. Without any other suffixes, SOD-323 typically refers to bent lead variant, also know as SC-76 (JEITA)1.

Synonyms:

  • SC-76 (JEITA)
3D model of the `SOD-323` component package.

3D model of the SOD-323 component package.

|=== | Property | NXP (nominal)1 | Body Length | 1.7mm | Body Width | 1.25mm | Body Height | 0.95mm |===

Dimensions for the `SOD-323` component package[^bib-nxp-sod323-ds].

Dimensions for the SOD-323 component package1.

Thermal Resistance:

  • \(R_{\theta(ja)} = 450K/W\) (FR4 PCB, single-sided copper, standard footprint)2
  • \(R_{\theta(ja)} = 210K/W\) (FR4 PCB, single-sided copper, standard footprint but with \(1cm^2\) mounting pad for cathode)2
  • \(R_{\theta(jc)} = 90K/W\) (from junction to solder point)2

Typical PCB Land Area: \(13.75mm^2\) (5x2.75mm)1

SOD-323F (Flat Lead Variant)

The SOD-323F is a variant which has flat leads instead of the bent leads in the standard SOD-323. It has the same body dimensions as the standard SOD-323.

Synonyms

  • SC-90: JEITA (EIAJ).
  • SOD-323F-2: Mouser3.
  • SOD-323FL: Rohm4.
  • UMD2: Rohm4.

WARNING: Rohm uses the name SOD-323FL to refer to the same package as many other manufacturers call SOD-323F4. Central Semiconductor also uses the package name SOD-323FL, but this refers to a different variant with different sized leads (see below).

3D render of the `SOD-323F` component package[^bib-nexperia-sod-323f].

3D render of the SOD-323F component package5.

Package dimensions of the `SOD-323F` component package[^bib-diodes-inc-sod-323f].

Package dimensions of the SOD-323F component package6.

SOD-323FL (Central Semiconductor Variant)

Central Semiconductors version of the SOD-323FL (the FL is presumably an acronym for Flat Leads) is another variant of the SOD-323 with flat leads, except one of the leads is much longer than the other7. This improves the heatsinking of the package even more than that of the SOD-323F variant.

Package dimensions of the Central Semiconductor `SOD-323FL` component package[^bib-central-semi-sod-323fl].

Package dimensions of the Central Semiconductor SOD-323FL component package7.

Recommended land pattern for the Central Semiconductor `SOD-323FL` component package[^bib-central-semi-sod-323fl].

Recommended land pattern for the Central Semiconductor SOD-323FL component package7.

SOD-323HE

Synonyms:

  • SC-108B (JEITA)8
  • TUMD2M (Rohm)8
3D model of the SOD-323HE component package[^bib-rohm-rb558vam150-ds].

3D model of the SOD-323HE component package8.

Package dimensions of the SOD-323HE component package[^bib-rohm-rb558vam150-ds].

Package dimensions of the SOD-323HE component package8.

References

  1. NXP (2019, July 30). SOD323 plastic, surface-mounted package; 2 leads; 1.3 mm pitch; 1.7mm x 1.25 mm x 0.95 mm body (datasheet). Retrieved 2022-03-25, from https://www.nxp.com/docs/en/package-information/SOD323.pdf. ↩︎ ↩︎ ↩︎ ↩︎ ↩︎

  2. Nexperia. PMEG2020AEA: 20 V, 2 A very low VF MEGA Schottky barrier rectifier in SOD323 (SC-76) package (datasheet). Retrieved 2022-03-25, from https://assets.nexperia.com/documents/data-sheet/PMEG2020AEA.pdf. ↩︎ ↩︎ ↩︎

  3. Mouser. Nexperia PMEG2020EJF (product page). Retrieved 2022-03-28, from https://www.mouser.com/ProductDetail/Nexperia/PMEG2020EJF?qs=45Avz0nZxhu5ApwA0R%252B84A%3D%3D. ↩︎

  4. Rohm Semiconductor (2021, Jan 8). _UDZV: Zener Diode (datasheet). Retrieved 2022-03-28, from https://fscdn.rohm.com/en/products/databook/datasheet/discrete/diode/zener/udzvte-1733b-e.pdf. ↩︎ ↩︎ ↩︎

  5. Nexperia. Packages -> SC-90 (SOD-323F). Retrieved 2022-03-28, from https://www.nexperia.com/packages/SOD323F.html. ↩︎

  6. Diodes Incorporated. SOD-323F: Package Information (datasheet). Retrieved 2022-03-27, from https://www.diodes.com/assets/Package-Files/SOD323F.pdf. ↩︎

  7. Central Semiconductor (2013, Mar 27). Package Details: SOD-323FL Case. Retrieved 2022-03-27, from https://www.centralsemi.com/PDFS/CASE/SOD-323FLPD.PDF. ↩︎ ↩︎ ↩︎

  8. Rohm Semiconductor (2016). RB558VAM150: Schottky Barrier Diode (datasheet). Retrieved 2022-03-27, from https://www.mouser.com/datasheet/2/348/rb558vam150tr_e-1870568.pdf. ↩︎ ↩︎ ↩︎ ↩︎

Authors

Geoffrey Hunter

Dude making stuff.

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