Alternatives to Diodes Incorporated SMAJ12A
Diodes Incorporated SMAJ12A and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
Equivalent and substitute parts for Diodes Incorporated SMAJ12A
| SMAJ12ADiodes Incorporated |  SMAJ12ABourns Inc. | SMAJ12ALittelfuse Inc. | +4more | |
|---|---|---|---|---|
| FFF Compatibility | Housed in the identical 2-pin SMD JEDEC DO-214AC (SMA) footprint with anode and cathode terminal mapping.Exactly the same DO-214AC (SMA) package dimensions.Meets or exceeds all performance parameters including breakdown voltage, leakage current, and transient power dissipation. | Uses the same JEDEC DO-214AC (SMA) surface mount footprint with identical polarities.Maintains identical dimensional boundaries and mounting criteria.Identical 12V reverse standoff voltage, 13.3V breakdown voltage, and 400W peak power ratings. | ||
 AI Summary | SMAJ12A by Diodes Incorporated: 19.9V Clamp 20.1A Ipp TVS Diode, DO-214AC (SMA). | The Bourns SMAJ12A is a direct drop-in replacement with identical electrical and physical parameters, serving as an outstanding, active second-source replacement for the obsolete Diodes Incorporated device.
| Littelfuse's SMAJ12A is an active, industry-standard direct equivalent that replaces the obsolete Diodes Incorporated part with no changes to the PCB layout or electrical design.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Discontinued | In stock | Non-stock | |
| REACH | Unknown | REACH | Unknown | |
| RoHS | Unknown | RoHS | RoHS | |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 SMCJ12Aonsemi | In stock | Active | 5Alternatives availableSee Alternatives |
| SMAJ130CADiodes Incorporated | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
| SMBJ13Aonsemi | Discontinued | Obsolete | 7Alternatives availableSee Alternatives |
| SMBJ18ADiodes Incorporated | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
| SMAJ58ADiodes Incorporated | Discontinued | Obsolete | 10Alternatives availableSee Alternatives |
| SMAJ33ADiodes Incorporated | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Diodes Incorporated SMAJ12A 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 SMAJ12A are the SMAJ12A (Bourns Inc.) and the SMAJ12A (Littelfuse Inc.), out of 6 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Yes. The leading alternatives to the SMAJ12A are fit-, form- and function-compatible — the same package and pinout with matching key electrical specifications — so they drop in without PCB changes. Always confirm the parameters critical to your design against the alternative's datasheet before committing.
The SMAJ12A (Diodes Incorporated) is a part in the Transient Voltage Suppressors (TVS) category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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