BZT52B27
Diotec Semiconductor
Needs validationmedium risk
BZT52B27 may fit SOD-123 layouts but needs review for lower clamp voltage.
Best Alternatives to BZT52C30
BZT52C30 is a 30V SOD-123 Zener diode. Nearby-voltage options need FAE review before use.
AI replacement insight
Electrical riskmedium
27V or 36V changes clamp point.
Package risklow
Kept items list SOD-123.
Firmware risklow
Passive diode, no firmware.
Sourcing riskmedium
PDF checks are pending.
Can it be replaced directly?
No direct pin-compatible replacement is proven from the provided data.
Best replacement path
Review BZT52B27 for lower clamp or MMSZ5258B for higher clamp.
Main risk
Zener voltage mismatch changes protection or regulation behavior.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | BZT52C30 | BZT52B27 | MMSZ5258B | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOD-123 | SOD-123 | SOD-123 | SOD-123 — same case; MMSZ5258B: same case | |
| Pinout | 2 pins | 2 pins | 2 pins | 2 pins — polarity not shown; MMSZ5258B: polarity not shown | |
| Voltage | 30V | 27V | 36V | 27V / 36V — lower clamp; MMSZ5258B: higher clamp | |
| Power | 350mW | 350mW | 350mW | 350mW — same rating; MMSZ5258B: same rating | |
| Temperature | -55 to 150C | -55 to 150C | -65 to 150C | -55 to 150C / -65 to 150C — same range; MMSZ5258B: wider low end |
Application & sourcing insights
Questions & answers
No exact 30V alternative is proven here. BZT52B27 and MMSZ5258B are nearby-voltage review candidates.