Alternatives to Diodes Incorporated SMAJ58A
Diodes Incorporated SMAJ58A and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
| SMAJ58ADiodes Incorporated |  SMAJ58ALittelfuse Inc. | SMAJ58ABourns Inc. | +8more | |
|---|---|---|---|---|
| FFF Compatibility | Same DO-214AC (SMA) footprint, 2-pin unidirectional diode pinout assignment.Standard DO-214AC (SMA) package with identical physical dimensions.Identical electrical specifications including 400W peak pulse power, 58V reverse standoff, and 4.3A peak current. | Same DO-214AC (SMA) footprint, 2-pin unidirectional diode pinout assignment.Standard DO-214AC (SMA) package with identical physical dimensions.Identical electrical specifications including 400W peak pulse power, 58V reverse standoff, and 4.3A peak current. | ||
 AI Summary | SMAJ58A by Diodes Incorporated: 74.1V Clamp 4.3A Ipp TVS Diode, DO-214AC (SMA). | This is a direct, active drop-in replacement from a top-tier circuit protection manufacturer. It matches the original Diodes Incorporated part across every electrical parameter and physical dimension.
| This Bourns component is an active, industry-standard second-source replacement. It provides the exact same transient voltage suppression capabilities in an identical SMA footprint.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Discontinued | In stock | In stock | |
| REACH | Unknown | REACH | REACH | |
| RoHS | Unknown | RoHS | RoHS | |
| Description | 74.1V Clamp 4.3A Ipp Tvs Diode Surface Mount DO-214AC (SMA) | 74.1V Clamp 4.3A Ipp Tvs Diode Surface Mount SMA | 74.1V Clamp 4.3A Ipp Tvs Diode Surface Mount SMA | |
| Manufacturer | Diodes Incorporated | Littelfuse Inc. | Bourns Inc. | |
| Type | Transient Voltage Suppressors (TVS) | Transient Voltage Suppressors (TVS) | Transient Voltage Suppressors (TVS) | |
| Datasheet | Open | Open | Open | |
| Lead Time | Unknown | 4 weeks | 4 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 |
|---|---|---|---|
| SMAJ58CADiodes Incorporated | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
 SMBJ51Aonsemi | In stock | Active | 4Alternatives availableSee Alternatives |
 SMCJ5.0ALittelfuse | In stock | Obsolete | 6Alternatives availableSee Alternatives |
 SMCJ48ADiodes Incorporated | In stock | Obsolete | 5Alternatives availableSee Alternatives |
| SMBJ18ADiodes Incorporated | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
| SMAJ12ADiodes Incorporated | Discontinued | Obsolete | 6Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Diodes Incorporated SMAJ58A 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 SMAJ58A are the SMAJ58A (Littelfuse Inc.) and the SMAJ58A (Bourns Inc.), out of 10 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 SMAJ58A 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 SMAJ58A (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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