Alternatives to Diodes Incorporated SMBJ30A
Diodes Incorporated SMBJ30A and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 SMBJ30ADiodes Incorporated |  SMBJ30ALittelfuse Inc. | SMBJ30ABourns Inc. | +5more | |
|---|---|---|---|---|
| FFF Compatibility | The part is a direct physical drop-in utilizing the identical DO-214AA (SMB) footprint with standard unidirectional cathode band polarity.Both the original onsemi and the Littelfuse replacement share the standard DO-214AA (SMB) package dimensions and surface-mount package shape.All critical electrical specifications including 600W peak power, 30V reverse standoff, 33.3V breakdown, and 48.4V clamping voltage are a perfect match. | Uses the industry-standard DO-214AA footprint with standard unidirectional terminal assignments (Cathode band).Standard SMB package dimensions match the original onsemi physical characteristics.Meets or exceeds all original onsemi electrical parameters with an operating temperature range of -55°C to +150°C. | ||
 AI Summary | SMBJ30A by Diodes Incorporated: Diode: TVS; 600W; 35V; 100A; unidirectional; SMB; reel,tape. | This is the direct physical and legal successor from Littelfuse, who acquired onsemi's TVS diode portfolio. It is an active, highly available industry standard that serves as a seamless drop-in replacement.
| Bourns offers an active, high-reliability equivalent under the exact same base part number. It matches the original specifications on every major parameter and requires no board modification.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Discontinued | In stock | In stock | |
| REACH | Unknown | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Diode: TVS; 600W; 35V; 100A; unidirectional; SMB; reel,tape | 48.4V Clamp 12.4A Ipp Tvs Diode Surface Mount DO-214AA (SMBJ) | 48.4V Clamp 12.4A Ipp Tvs Diode Surface Mount DO-214AA (SMB) | |
| Manufacturer | Diodes Incorporated | Littelfuse Inc. | Bourns Inc. | |
| Type | Unidirectional TVS SMD diodes | Transient Voltage Suppressors (TVS) | Transient Voltage Suppressors (TVS) | |
| Datasheet | Open | Open | Open | |
| Lead Time | Unknown | 11 weeks | 21 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 |
| SMBJ13Aonsemi | Discontinued | Obsolete | 7Alternatives availableSee Alternatives |
| SMBJ33CADiodes Incorporated | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
| SMBJ90CADiodes Incorporated | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
 SMBJ100CAonsemi | In stock | Active | 8Alternatives availableSee Alternatives |
| SMBJ18ADiodes Incorporated | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Diodes Incorporated SMBJ30A 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 SMBJ30A are the SMBJ30A (Littelfuse Inc.) and the SMBJ30A (Bourns Inc.), out of 7 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 SMBJ30A 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 SMBJ30A (Diodes Incorporated) is a part in the Unidirectional TVS SMD diodes category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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