ZMM15PF-M
ST (先科)
Needs validationlow risk
A potential pin-compatible 15V, 500mW Zener diode in the same LL-34 package from another manufacturer.
Best Alternatives to ZMM15
ZMM15 is a common 15V, 500mW Zener diode in a surface-mount LL-34 package. Several cross-vendor alternatives with matching key parameters are available, but require verification of tolerance and dynamic impedance.
AI replacement insight
Electrical riskmedium
Tolerance and dynamic impedance must be verified.
Package risklow
LL-34 is a standard package.
Sourcing risklow
Multiple manufacturers produce similar parts.
Can it be replaced directly?
Direct replacement for ZMM15 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Use a cross-vendor part like YONGYUTAI ZMM15V or ST ZMM15PF-M after verifying secondary electrical parameters from the datasheet.
Main risk
The main risk is a mismatch in Zener voltage tolerance or dynamic impedance (Zzt), which could affect voltage regulation performance.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | ZMM15 | ZMM15PF-M | ZMM15V | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Voltage | 15.0V | 15.0V | 15.0V | 15.0V — Nominal Zener voltage matches.; ZMM15V: Nominal Zener voltage matches. | |
| Power | 0.5W | 0.5W | 0.5W | 0.5W — Power dissipation matches.; ZMM15V: Power dissipation matches. | |
| Package | LL-34 | LL-34 | LL-34 | LL-34 — Package is a physical match.; ZMM15V: Package is a physical match. | |
| Manufacturer | Slkor(SLKORMICRO Elec.) | ST (先科) | YONGYUTAI | ST (先科) / YONGYUTAI — Cross-vendor alternative.; ZMM15V: Cross-vendor alternative. |
Application & sourcing insights
Questions & answers
Verified drop-in options for ZMM15 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.