Alternatives to Littelfuse 1SMC5.0AT3G
Littelfuse 1SMC5.0AT3G and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 1SMC5.0AT3GLittelfuse |  SMCJ5.0ALittelfuse Inc. |  SMCJ5.0A-E3/57TVishay General Semiconductor - Diodes Division | +5more | |
|---|---|---|---|---|
| FFF Compatibility | Exact matching DO-214AB (SMC) package footprint with a standard 2-pin unidirectional anode/cathode layout.Identical package case, dimensions, and SMD mounting style.The operating temperature range is slightly narrower on the cold side (-55°C to 150°C) compared to the original part (-65°C to 150°C). | Fits perfectly on the existing SMC/DO-214AB land pattern with the same 2-pin unidirectional pinout.Matches standard SMC dimensions and surface-mount configuration.The minimum operating temperature is -55°C instead of the original part's -65°C. | ||
 AI Summary | 1SMC5.0AT3G by Littelfuse: 9.2V Clamp 163A Ipp Tvs Diode Surface Mount SMC. | The SMCJ5.0A is the official direct replacement recommended by Littelfuse for the obsolete 1SMC5.0AT3G. It matches all primary electrical parameters exactly, including the 1500W peak pulse power rating, 5.0V reverse standoff voltage, and 9.2V maximum clamping voltage. The only minor trade-off is a slightly narrower low-temperature limit of -55°C.
| The SMCJ5.0A-E3/57T is an industry-standard alternative from Vishay's TransZorb line that acts as a direct electrical and physical equivalent. It features the same 1500W peak pulse power limit and 9.2V clamping voltage at 163A. It is actively in production and offers excellent reliability as a second-source option.
| |
| Lifecycle Status | Obsolete | Obsolete | Active | |
| Market Availability | Discontinued | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | 9.2V Clamp 163A Ipp Tvs Diode Surface Mount SMC | 9.2V Clamp 163A Ipp Tvs Diode Surface Mount DO-214AB (SMCJ) | 9.2V Clamp 163A Ipp Tvs Diode Surface Mount DO-214AB (SMCJ) | |
| Manufacturer | Littelfuse | Littelfuse Inc. | Vishay General Semiconductor - Diodes Division | |
| Type | Transient Voltage Suppressors (TVS) | Transient Voltage Suppressors (TVS) | Transient Voltage Suppressors (TVS) | |
| Datasheet | Open | Open | Open | |
| Lead Time | 34 weeks | 19 weeks | 20 weeks | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8541.10.0080 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| Type | Zener | - | - | |
| Applications | General Purpose | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | DO-214AB, SMC | - | - | |
| Power - Peak Pulse | 1500W (1.5kW) | - | - | |
| Operating Temperature | -65°C ~ 150°C (TJ) | - | - | |
| Power Line Protection | No | - | - | |
| Supplier Device Package | SMC | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 1SMC30AT3GLittelfuse | Discontinued | Obsolete | 6Alternatives availableSee Alternatives |
 1SMB5.0AT3Gonsemi | Discontinued | Obsolete | 6Alternatives availableSee Alternatives |
 1SMB51AT3GLittelfuse | Discontinued | Obsolete | 6Alternatives availableSee Alternatives |
| 1SMB6.5AT3GLittelfuse | Discontinued | Obsolete | 6Alternatives availableSee Alternatives |
 1SMC18AT3GLittelfuse | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
| 1SMC48AT3GLittelfuse | Discontinued | Obsolete | 6Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Littelfuse 1SMC5.0AT3G 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 Littelfuse 1SMC5.0AT3G are the SMCJ5.0A (Littelfuse Inc.) and the SMCJ5.0A-E3/57T (Vishay General Semiconductor - Diodes Division), 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 1SMC5.0AT3G 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 1SMC5.0AT3G (Littelfuse) 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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