Alternatives to onsemi 1SMB5.0AT3G
onsemi 1SMB5.0AT3G and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 1SMB5.0AT3Gonsemi |  SZ1SMB5.0AT3GLittelfuse Inc. |  SMBJ5.0ALittelfuse Inc. | +4more | |
|---|---|---|---|---|
| FFF Compatibility | Identical SMB (DO-214AA) footprint and 2-pin polarity configuration.Identical mechanical dimensions and SMD mounting style.Matches all electrical specifications including Vrwm (5.0V), Vbr (6.4V min), Vc (9.2V max), and Ipp (65.2A). | Standard SMB (DO-214AA) footprint and identical pin assignment.Standard SMB physical form factor and mounting dimensions.Matches 5.0V standby voltage, 6.4V breakdown voltage, 9.2V clamping voltage, and has a nearly identical peak current of 65.3A. | ||
 AI Summary | 1SMB5.0AT3G by onsemi: Diode: TVS; 600W; 6.7V; 65.2A; unidirectional; SMB; reel,tape. | This is the active, automotive-qualified equivalent of the obsolete 1SMB5.0AT3G. It is an exact physical and electrical drop-in, maintaining the original's full operating specifications and temperature range while offering enhanced reliability standards.
| This is Littelfuse's active industry-standard SMBJ-series equivalent. It is an exact drop-in alternative that maintains the full temperature range of the original component.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Discontinued | In stock | In stock | |
| REACH | Unknown | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Diode: TVS; 600W; 6.7V; 65.2A; unidirectional; SMB; reel,tape | 9.2V Clamp 65.2A Ipp Tvs Diode Surface Mount SMB | 9.2V Clamp 65.3A Ipp Tvs Diode Surface Mount DO-214AA (SMBJ) | |
| Manufacturer | onsemi | Littelfuse Inc. | Littelfuse Inc. | |
| Type | Unidirectional TVS SMD diodes | Transient Voltage Suppressors (TVS) | Transient Voltage Suppressors (TVS) | |
| Datasheet | Open | Open | Open | |
| Lead Time | Unknown | 17 weeks | 14 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 |
|---|---|---|---|
 1SMB51AT3GLittelfuse | Discontinued | Obsolete | 6Alternatives availableSee Alternatives |
| 1SMB6.5AT3GLittelfuse | Discontinued | Obsolete | 6Alternatives availableSee Alternatives |
 1SMC5.0AT3GLittelfuse | Discontinued | Obsolete | 7Alternatives availableSee Alternatives |
 1SMB58CAT3GLittelfuse | Discontinued | Obsolete | 6Alternatives availableSee Alternatives |
 1SMB24AT3GLittelfuse | Discontinued | Obsolete | 8Alternatives availableSee Alternatives |
| 1SMB48AT3GLittelfuse | Discontinued | Obsolete | 9Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The onsemi 1SMB5.0AT3G 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 onsemi 1SMB5.0AT3G are the SZ1SMB5.0AT3G (Littelfuse Inc.) and the SMBJ5.0A (Littelfuse Inc.), out of 6 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 1SMB5.0AT3G 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 1SMB5.0AT3G (onsemi) 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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