Alternatives to onsemi MM3Z12VT1
onsemi MM3Z12VT1 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 onsemi MM3Z12VT1
 MM3Z12VT1onsemi | MM3Z12VT1Gonsemi | SZMM3Z12VT1Gonsemi | +5more | |
|---|---|---|---|---|
| FFF Compatibility | Identical SOD-323 package layout with matching cathode/anode orientation.Standard SOD-323 (SC-76) package with identical package dimensions.Identical electrical ratings including 12V nominal Zener voltage and 300mW power dissipation. | Identical SOD-323 package with matching pinout.Standard SOD-323 package dimensions.Identical electrical specs with qualified automotive-grade reliability. | ||
 AI Summary | MM3Z12VT1 by onsemi: Zener Diode 12 V 200 mW ±5% Surface Mount SOD-323. | This is the direct, lead-free (RoHS compliant) replacement from onsemi for the obsolete MM3Z12VT1, sharing the same 300mW power rating and 12V ±5% Zener specifications.
| This is the automotive-qualified version of the lead-free replacement, offering enhanced reliability and qualification while maintaining identical electrical parameters.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Discontinued | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| ——— ———— | ————— ——— ———— | ———— —————— | —— ————— ——— | |
| —————— —— | ——————— ———— | ————— ——— ———— | ———— —————— | |
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| ———— ——— | —— ————— ——— | ——————— ———— | ————— ——— ———— | |
| —— ————— | ———— —————— | —— ————— ——— | ——————— ———— |
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Frequently asked questions
Yes. The onsemi MM3Z12VT1 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 MM3Z12VT1 are the MM3Z12VT1G (onsemi) and the SZMM3Z12VT1G (onsemi), 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 MM3Z12VT1 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 MM3Z12VT1 (onsemi) is a part in the Diodes category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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