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Best Alternatives to BZT52B15S

Package: SC-90, SOD-323FYangjie TechnologyDiodes - Zener - SingleSeries: -Package: Tape & Reel (TR)Voltage - Zener (Nom) (Vz): 15 VTolerance: ±2%Current - Reverse Leakage @ Vr: 100 nA @ 11 V

Find and compare alternatives for the BZT52B15S, a 15V, 200mW Zener diode in a SOD-323 package. Review pin-compatible and functional alternatives, noting key parametric differences like voltage tolerance.

AI replacement insight

Electrical riskmedium

Voltage tolerance mismatch is the main electrical risk. Vz and impedance differences in other parts require analysis.

Package risklow

All reviewed candidates use the same SOD-323 package, ensuring form-fit compatibility.

Can it be replaced directly?

Direct replacement for BZT52B15S should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

MM3Z15 is the strongest candidate, matching the package and key electricals, but has a wider voltage tolerance (±5% vs ±2%).

Main risk

The primary risk is the Zener voltage tolerance. The target BZT52B15S has a tight ±2% tolerance, while the best alternative has ±5%, which may not be suitable for precision voltage regulation.

Recommended alternatives

2
MM3Z15 package
MM3Z15

Diotec Semiconductor

Needs validationlow risk

MM3Z15 is a potential pin-compatible 15V Zener diode in the same SOD-323 package, but with a wider voltage tolerance.

View details

Alternative comparison matrix

Feature / factorBZT52B15SMM3Z15BZT52C16SAlt 3Compatibility / risk
PackageSOD-323SOD-323SOD-323SOD-323 — Package matches, enabling form-fit compatibility.; BZT52C16S: Package matches, enabling form-fit compatibility.
Voltage15V15V16V15V / 16V — Nominal Zener voltage matches.; BZT52C16S: Zener voltage is higher, requires circuit analysis.
Tolerance±2%±5%±5%±5% — Candidate has wider tolerance, may affect regulation precision.; BZT52C16S: Candidate has wider tolerance.
Power200mW200mW-200mW — Power dissipation rating matches.
Impedance30 Ohms30 Ohms40 Ohms30 Ohms / 40 Ohms — Zener impedance matches.; BZT52C16S: Zener impedance is higher, may affect regulation.

Application & sourcing insights

Questions & answers

Verified drop-in options for BZT52B15S 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.