MM5Z5V1
Diotec Semiconductor
Needs validationlow risk
Pin-compatible Zener diode in the same SOD-523 package with higher power rating but slightly different Zener voltage.
Best Alternatives to BZX584C4V7
Find replacements for the BZX584C4V7, a 4.7V Zener diode in a SOD-523 package. Review pin-compatible and functional alternatives with key parameter comparisons.
AI replacement insight
Electrical risklow
Zener voltage is close and other specs are improved. Most circuits will tolerate this.
Package risklow
For pin-compatible options like MM5Z5V1, package risk is minimal. It is high for functional alternates.
Can it be replaced directly?
Direct replacement for BZX584C4V7 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
MM5Z5V1 offers a direct path due to its matching SOD-523 package, but requires electrical validation of the slightly higher Zener voltage.
Main risk
The primary risk is the slight increase in Zener voltage from 4.7V to 5.1V, which could affect regulation accuracy.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | BZX584C4V7 | MM5Z5V1 | PDZ5.1B,115 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOD-523 | SOD-523 | SC-76, SOD-323 | SOD-523 / SC-76, SOD-323 — Package is identical, enabling a physical drop-in.; PDZ5.1B,115: Different package requires PCB layout change. | |
| Voltage | 4.7 V | 5.1 V | 5.1 V | 5.1 V — Slightly higher Zener voltage, requires circuit tolerance check.; PDZ5.1B,115: Slightly higher Zener voltage, requires circuit tolerance check. | |
| Power | 150 mW | 200 mW | 400 mW | 200 mW / 400 mW — Higher power rating provides more thermal margin.; PDZ5.1B,115: Significantly higher power rating. | |
| Impedance | 80 Ohm | 60 Ohms | - | 60 Ohms — Lower impedance provides better voltage regulation. | |
| Tolerance | ±5% (Typical) | - | ±2% | ±2% — Tighter voltage tolerance provides better precision. |
Application & sourcing insights
Questions & answers
Verified drop-in options for BZX584C4V7 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.