
Functional alternative in a SOT-23 package with a higher power rating but different Zener voltage (5.1V).
Find and compare alternatives for the Nexperia BZX84-C4V7,215, a 4.7V Zener diode in a SOT-23 package. Review key parametric differences before selection.
Candidates have different Zener voltage and one has lower power.
All candidates share the common SOT-23 package.
No direct drop-in replacement has been verified. The closest options have a different Zener voltage (5.1V vs 4.7V) and require engineering review.
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The primary risk is the Zener voltage mismatch, which can affect voltage regulation in the circuit.

Functional alternative in a SOT-23 package with a higher power rating but different Zener voltage (5.1V).
| Feature / factor | BZX84-C4V7,215 | LBZX84C5V1LT1G | MMBZ5231BLT1G | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT-23 (TO-236AB) | SOT-23 | SOT-23 (TO-236) | SOT-23 / SOT-23 (TO-236) — Form factor is compatible.; MMBZ5231BLT1G: Form factor is compatible. | |
| Voltage | 4.7V | 5.1V | 5.1V | 5.1V — Higher Zener voltage, requires circuit review.; MMBZ5231BLT1G: Higher Zener voltage. | |
| Power | 250mW | 300mW | 225mW | 300mW / 225mW — Higher power rating provides more margin.; MMBZ5231BLT1G: Lower power rating, risk of overstress. | |
| Current | 5mA | 5mA | 20mA | 5mA / 20mA — Test current matches.; MMBZ5231BLT1G: Zener voltage specified at a much higher current. |
The best alternative depends on circuit tolerance. LBZX84C5V1LT1G offers higher power but a 5.1V Zener voltage. Always verify electrical parameters for your application.