SMBJ28A | TVS diode
Public UnreviewedLittelfuse Inc. SMBJ28A: tvs diode, SMBJ28A. Reusable KiCad symbol, footprint, and provisional package model.
3D Model
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README
markdownSMBJ28A | TVS diode
Littelfuse Inc. SMBJ28A is a tvs diode. Nominal selection: SMBJ28A.
Library status
This is a provisional reusable library record. The supplied symbol and footprint preserve the project's KiCad pin numbering. Pin-to-pad number sets match. The footprint dimensions, solder process and exact-part mechanical fit have not received a manufacturer-drawing sign-off.
3D representation: KiCad stock STEP package. Generic package geometry must not be treated as certified dimensions for this exact MPN. The annotated model adds nonphysical footprint references; use the clean model for assemblies.
Identity and resources
| Field | Value |
|---|---|
| Manufacturer | Littelfuse Inc. |
| Exact MPN | SMBJ28A |
| Function | TVS diode |
| Nominal selection | SMBJ28A |
| KiCad package | D_SMB |
| Electrical pin numbers | 2 |
Manufacturer datasheet or resource.
Ordering
Distributor identities checked on 2026-10-11. Stock and pricing change; open the vendor link for current availability.
- digikey: SMBJ28ALFTR-ND
Pins
| Pin / pad | Signal | Electrical type |
|---|---|---|
| 1 | K | passive |
| 2 | A | passive |
Pin names and electrical types above come from the KiCad symbol. Check the linked manufacturer datasheet for electrical limits, handling, package dimensions and pin functions before using the library in a new design.
CAD downloads
The footprint uses ${KIPRJMOD}/models/D_SMB.step. Place the supplied models folder beside your KiCad project, or update the binding to your shared library location. No global library settings are changed by these files.
Provenance
Symbols and stock footprints originate from the KiCad 10 libraries. The fuse footprint was authored for this prototype. Package models retain the source bytes and attribution. The two illustrative models are explicitly identified as generated representations. Conversion and source hashes are recorded in provenance. Datasheets and third-party assets retain their original terms.
Original page documentation and project-authored library additions: CC BY 4.0. KiCad library assets: CC BY-SA 4.0 with KiCad library exception. See LICENSE.