Alternatives to Diodes Incorporated SMAJ33A
Diodes Incorporated SMAJ33A and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
Equivalent and substitute parts for Diodes Incorporated SMAJ33A
| SMAJ33ADiodes Incorporated |  SMAJ33A-13-FDiodes Incorporated |  SMAJ33ALittelfuse Inc. | +3more | |
|---|---|---|---|---|
| FFF Compatibility | Shares the identical DO-214AC (SMA) footprint, physical outline, and pinout (Pin 1 Cathode, Pin 2 Anode).Identical SMA package dimensions and package outline.Identical electrical specifications including 33V reverse standoff, 36.7V minimum breakdown, 53.3V maximum clamping, and 400W peak pulse power. | Shares the identical DO-214AC (SMA) footprint, physical outline, and pinout (Pin 1 Cathode, Pin 2 Anode).Identical SMA package dimensions and standard mounting style.Matches all core electrical specifications including 33V Vrwm, 36.7V minimum Vbr, and 53.3V maximum clamping voltage. | ||
 AI Summary | SMAJ33A by Diodes Incorporated: ESD Protection Diodes / TVS Diodes. | This is the direct successor from Diodes Incorporated, adding the standard green, lead-free tape-and-reel packaging suffix. It is a drop-in replacement matching all physical and electrical baseline specifications.
| The Littelfuse SMAJ33A is an industry-standard, high-reliability drop-in replacement. It provides identical electrical performance and has a slightly broader lower operating temperature limit.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Discontinued | In stock | In stock | |
| REACH | Unknown | REACH | REACH | |
| RoHS | Unknown | RoHS | RoHS | |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 SMAJ30ADiodes Incorporated | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
| SMBJ33CADiodes Incorporated | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
| SMAJ130CADiodes Incorporated | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
 SM6T33ASTMicroelectronics | In stock | Active | 5Alternatives availableSee Alternatives |
| SMBJ13Aonsemi | Discontinued | Obsolete | 7Alternatives availableSee Alternatives |
 SMCJ36ADiodes Incorporated | Discontinued | Obsolete | 6Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Diodes Incorporated SMAJ33A 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 SMAJ33A are the SMAJ33A-13-F (Diodes Incorporated) and the SMAJ33A (Littelfuse Inc.), out of 5 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 SMAJ33A 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 SMAJ33A (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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