SOD-323 COMPONENT PACKAGE

SOD-323 Component Package

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Date Published:	April 6, 2015
Last Modified:	March 25, 2022

1. Overview

Name

SOD-323 (Small-outline Diode 323)

Image

Synonyms

SOD-323

SC-76 (JEITA)

SOD-323F

SC-90 (JEITA)

SOD-323HE

SC-108B (JEITA)[4]
TUMD2M (Rohm)[4]

Similar To

SOD-123 (larger)
SOD-523 (smaller)
SOD-723 (even smaller)
SOD-923 (smallest)

Variants

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:

Mounting

SMD

Pin Count

Pitch

2.2mm[1]

Solderability

Reflow is recommended. Easy to solder by hand.

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]

Package Dimensions

Length: 1.7mm[1]
Width: 1.25mm[1]
Height: 0.95mm[1]

Typical PCB Land Area

\(13.75mm^2\) (5x2.75mm)[1]

3D Models

Common Uses

Diodes

2. 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].

Figure 1. 3D model of the SOD-323 component package.

Property

NXP (nominal)[1]

Body Length

1.7mm

Body Width

1.25mm

Body Height

0.95mm

Figure 2. Dimensions for the SOD-323 component package[1].

3. 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: Mouser[6].
SOD-323FL: Rohm[8].
UMD2: Rohm[8].

Rohm uses the name SOD-323FL to refer to the same package as many other manufacturers call SOD-323F[8]. Central Semiconductor also uses the package name SOD-323FL, but this refers to a different variant with different sized leads (see below).

Figure 3. 3D render of the SOD-323F component package[7].

Figure 4. Package dimensions of the SOD-323F component package[5].

4. 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 other[3]. This improves the heatsinking of the package even more than that of the SOD-323F variant.

sod 323fl component package dimensions central semiconductor

Figure 5. Package dimensions of the Central Semiconductor SOD-323FL component package[3].

sod 323fl land pattern central semiconductor

Figure 6. Recommended land pattern for the Central Semiconductor SOD-323FL component package[3].

5. SOD-323HE

The SOD-323HE is also known as SC-108B (JEITA) or TUMD2M (Rohm)[4].

Figure 7. 3D model of the SOD-323HE component package[4].

Figure 8. Package dimensions of the SOD-323HE component package[4].

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] Central Semiconductor (2013, Mar 27). Package Details: SOD-323FL Case. Retrieved 2022-03-27, from https://www.centralsemi.com/PDFS/CASE/SOD-323FLPD.PDF.
[4] Rohm Semiconductor (2016). RB558VAM150: Schottky Barrier Diode (datasheet). Retrieved 2022-03-27, from https://www.mouser.com/datasheet/2/348/rb558vam150tr_e-1870568.pdf.
[5] Diodes Incorporated. SOD-323F: Package Information (datasheet). Retrieved 2022-03-27, from https://www.diodes.com/assets/Package-Files/SOD323F.pdf.
[6] Mouser. Nexperia PMEG2020EJF (product page). Retrieved 2022-03-28, from https://www.mouser.com/ProductDetail/Nexperia/PMEG2020EJF?qs=45Avz0nZxhu5ApwA0R%252B84A%3D%3D.
[7] Nexperia. Packages → SC-90 (SOD-323F). Retrieved 2022-03-28, from https://www.nexperia.com/packages/SOD323F.html.
[8] 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.

Authors

Geoffrey Hunter

Dude making stuff.

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This work is licensed under a Creative Commons Attribution 4.0 International License .