
Diotec Semiconductor
MM3Z3V3 may work as a 3.3 V Zener alternate if the SOD-323 footprint is acceptable.
BZX584C3V3 is a 3.3 V, 150 mW SOD-523 Zener diode. The listed alternates need review because packages differ.
MM3Z3V3 matches Vz; BZT52C3V6 shifts Vz.
No kept part is SOD-523.
Passive diode, no firmware.
Kept parts are catalog matched.
Direct replacement for BZX584C3V3 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Review MM3Z3V3 first for same 3.3 V function, then verify footprint and polarity.
All kept candidates use a different package from SOD-523.

Diotec Semiconductor
MM3Z3V3 may work as a 3.3 V Zener alternate if the SOD-323 footprint is acceptable.
| Feature / factor | BZX584C3V3 | MM3Z3V3 | BZT52C3V6 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Voltage | 3.3 V | 3.3 V | - | 3.6 V — Higher Zener point. | |
| Power | 150 mW | 200/300 mW | - | 350/500 mW — Higher listed rating. | |
| Package | SOD-523 | SOD-323 | - | SOD-123 — Not footprint compatible. | |
| Pinout | 2 pin | 2 pin | - | 2 pin — Polarity not verified. | |
| Lifecycle | Active | Active | - | Active — Both active. |
Verified drop-in options for BZX584C3V3 are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.