Alternatives to Diodes Incorporated SMBJ78CA
Diodes Incorporated SMBJ78CA and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
| SMBJ78CADiodes Incorporated |  SMBJ78CALittelfuse Inc. | SMBJ78CABourns Inc. | +2more | |
|---|---|---|---|---|
| FFF Compatibility | Both parts use the industry-standard SMD SMB (DO-214AA) footprint and are fully symmetrical, bi-directional TVS diodes with identical pinouts.Both parts utilize the identical DO-214AA package outline with matching height, width, and lead dimensions.Both diodes feature identical electrical specifications including a 78V reverse standoff voltage, 86.7V minimum breakdown voltage, and a 126V clamping voltage at 4.8A. | Both parts utilize the identical SMD SMB (DO-214AA) footprint and have a symmetrical two-terminal bidirectional layout.Both components share the standard DO-214AA physical form factor and dimensions.Matches the 78V standoff voltage, 86.7V minimum breakdown voltage, and 126V clamping voltage at 4.8A with no performance tradeoffs. | ||
 AI Summary | SMBJ78CA by Diodes Incorporated: ESD Protection Diodes / TVS Diodes. | The Littelfuse SMBJ78CA is an active, highly reliable direct drop-in replacement for the obsolete Diodes Inc. part. It matches all electrical and physical parameters, ensuring a seamless replacement without any PCB or circuit modifications.
| The Bourns SMBJ78CA is an active, widely available direct replacement that perfectly matches the physical footprint and performance characteristics of the original Diodes Inc. component.
| |
| 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 | 126V Clamp 4.8A Ipp Tvs Diode Surface Mount DO-214AA (SMBJ) | 126V Clamp 4.8A Ipp Tvs Diode Surface Mount DO-214AA (SMB) | |
| Manufacturer | Diodes Incorporated | Littelfuse Inc. | Bourns Inc. | |
| Type | ESD Protection Diodes / TVS Diodes | Transient Voltage Suppressors (TVS) | Transient Voltage Suppressors (TVS) | |
| Datasheet | Open | Open | Open | |
| Lead Time | Unknown | 21 weeks | 29 weeks | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | - | - | - | |
| Moisture Sensitivity Level | - | - | - |
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| SMBJ18CADiodes Incorporated | Discontinued | Obsolete | 7Alternatives availableSee Alternatives |
| SMBJ58CADiodes Incorporated | Discontinued | Obsolete | 6Alternatives availableSee Alternatives |
| SMBJ18ADiodes Incorporated | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
| SMBJ48ADiodes Incorporated | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
 SMBJ18AVIITOR SEMICONDUCTOR CO., LTD | In stock | NRND | 5Alternatives availableSee Alternatives |
| SMBJ26CADiodes Incorporated | Discontinued | Obsolete | 6Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Diodes Incorporated SMBJ78CA 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 SMBJ78CA are the SMBJ78CA (Littelfuse Inc.) and the SMBJ78CA (Bourns Inc.), out of 4 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 SMBJ78CA 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 SMBJ78CA (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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