Alternatives to Diodes Incorporated SMBJ33CA
Diodes Incorporated SMBJ33CA and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
| SMBJ33CADiodes Incorporated |  SMBJ33CA-13-FDiodes Incorporated |  SMBJ33CALittelfuse Inc. | +3more | |
|---|---|---|---|---|
| FFF Compatibility | Matches the standard DO-214AA (SMB) footprint with a bidirectional 2-terminal configuration and no polarity band.Matches the standard DO-214AA (SMB) package dimensions and surface-mount package shape exactly.Delivers the identical 33V reverse standoff voltage, 36.7V minimum breakdown voltage, 53.3V clamping voltage, and 600W peak pulse power. | Shares the standard DO-214AA (SMB) package footprint and bidirectional 2-terminal layout.Conforms fully to the industry-standard SMB / DO-214AA physical body dimensions and JEDEC specifications.Exhibits identical 33V standoff voltage, 36.7V breakdown voltage, 53.3V max clamp, and 600W power handling. | ||
 AI Summary | SMBJ33CA by Diodes Incorporated: ESD Protection Diodes / TVS Diodes. | This is the official active replacement from Diodes Incorporated. It is fully drop-in compatible and updates the obsolete base part number to include the current packaging/lead-free tape and reel suffix.
| This is a highly reliable direct second-source alternative from Littelfuse. It offers identical electrical parameters and is an active, widely available product family.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Discontinued | In stock | In stock | |
| REACH | Unknown | REACH | REACH | |
| RoHS | Unknown | RoHS | RoHS | |
| Description | ESD Protection Diodes / TVS Diodes | 53.3V Clamp 11.3A Ipp Tvs Diode Surface Mount SMB | 53.3V Clamp 11.3A Ipp Tvs Diode Surface Mount DO-214AA (SMBJ) | |
| Manufacturer | Diodes Incorporated | Diodes Incorporated | Littelfuse Inc. | |
| Type | ESD Protection Diodes / TVS Diodes | Transient Voltage Suppressors (TVS) | Transient Voltage Suppressors (TVS) | |
| Datasheet | Open | Open | Open | |
| Lead Time | Unknown | 32 weeks | 12 weeks | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | - | - | - | |
| Moisture Sensitivity Level | - | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
| SMBJ30CADiodes Incorporated | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
 SMBJ30ADiodes Incorporated | Discontinued | Obsolete | 7Alternatives availableSee Alternatives |
| SMBJ13Aonsemi | Discontinued | Obsolete | 7Alternatives availableSee Alternatives |
| SMBJ18CADiodes Incorporated | Discontinued | Obsolete | 7Alternatives availableSee Alternatives |
| SMBJ26CADiodes Incorporated | Discontinued | Obsolete | 6Alternatives availableSee Alternatives |
| SMBJ51CADiodes Incorporated | Discontinued | Obsolete | 4Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Diodes Incorporated SMBJ33CA is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.
The closest qualified second sources for the Diodes Incorporated SMBJ33CA are the SMBJ33CA-13-F (Diodes Incorporated) and the SMBJ33CA (Littelfuse Inc.), out of 5 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the SMBJ33CA are matched on function but can differ in package, pinout or a key parameter, so review the fit/form/function notes in the table and the datasheet before designing one in.
The SMBJ33CA (Diodes Incorporated) is a part in the ESD Protection Diodes / TVS Diodes category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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