SOD-128 COMPONENT PACKAGE

SOD-128 Component Package

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Overview

NameSOD-128 (Small-outline Diode 128)
Image
Synonyms

    • CFP5 (Nexperia)1

    • PMDTM (Rohm Semiconductor)2

    • SOD-128-2 (Mouser)3

    • SOD-128 FLAT (ST Microelectronics)4

VariantsNone
MountingSMD
Pin Count2
Pitch4.4mm
SolderabilityReflow is most suitable. Possible to hand solder/reflow as long as experienced.
Package Dimensions

  • Length (incl. leads, avg.): 4.70mm2

  • Width (avg.): 2.50mm2

  • Height (avg.): 0.95mm2

    • Typical PCB Land Area

    \(21.1mm^2\) (6.2x3.4mm)1

    Common Uses

    • General purpose diodes
    • TVS diodes

    SOD-128 is a package used by a few manufacturers for diodes. I could not find any JEITA (EIAJ) code (e.g. SC-xxx) for this package. ST Microelectronics calls this package the SOD-128 FLAT (presumably because it has flat leads, as opposed to many SOD packages which by default have gull-wing leads, and only offer flat variants once you add a F suffix)4. There does not appear to be any difference between the ST Microelectronics SOD-128 FLAT package and the SOD-128 as labelled by Rohm and Nexperia.

    Thermal Resistance

    • \(R_{JA} = 200^{\circ}{\rm C}/W\) (standard land pattern, see below)
    • \(R_{JA} = 120^{\circ}{\rm C}/W\) (mounting pad for cathode 1cm²)
    • \(R_{JA} = 60^{\circ}{\rm C}/W\) (mounted on ceramic PCB with standard footprint)

    3D Render

    A 3D render of the SOD-128 component package.

    A 3D render of the SOD-128 component package.

    Dimensions

    The package outline for the SOD-128 component package.

    The package outline for the SOD-128 component package.

    The recommended land pattern for the SOD-128 component package.

    The recommended land pattern for the SOD-128 component package.

    References

    1. Nexperia. SOD128: plastic, surface mounted package; 2 terminals; 4 mm pitch; 3.8 mm x 2.6 mm x 1 mm body (package information). Retrieved 2022-03-28, from https://assets.nexperia.com/documents/package-information/SOD128.pdf. ↩︎ ↩︎

    2. Rohm Semiconductor (2019, May 28). RBR5LAM30B: Schottky Barrier Diode (datasheet). Retrieved 2022-03-28, from https://fscdn.rohm.com/en/products/databook/datasheet/discrete/diode/schottky_barrier/rbr5lam30btr-e.pdf. ↩︎ ↩︎ ↩︎ ↩︎

    3. Mouser. ROHM Semiconductor RB088LAM-30TR (product page). Retrieved 2022-03-28, from https://www.mouser.com/ProductDetail/ROHM-Semiconductor/RB088LAM-30TR?qs=F5EMLAvA7IAOGmDi0yYqWA%3D%3D. ↩︎

    4. ST Microelectronics (2020, Jan). SM6FxxAY: Automotive 600 W TVS in SOD128 Flat (datasheet). Retrieved 2022-03-28, from https://www.st.com/resource/en/datasheet/sm6f11ay.pdf. ↩︎ ↩︎

    Authors

    Geoffrey Hunter

    Dude making stuff.

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

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