All Alternatives

Alternatives to onsemi MMSZ5239B

onsemi MMSZ5239B and its qualified second sources, compared on form, fit and function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

Equivalent and substitute parts for onsemi MMSZ5239B

MMSZ5239B compared against its qualified second sources
MMSZ5239BonsemiMMSZ5239B-7-FDiodes IncorporatedMMSZ5239B-E3-08Vishay General Semiconductor - Diodes Division+1more
FFF CompatibilityStandard SOD-123 package with identical 2-pin layout.Standard SOD-123 dimensions.Matches all primary electrical characteristics: 9.1 V nominal Zener voltage, 5% tolerance, and 500 mW power handling.Standard SOD-123 package with cathode polarity band on Pin 1.Identical physical package outline and mounting requirements.Matches the original 9.1 V Zener voltage and 500 mW power rating.
AI Summary

MMSZ5239B by onsemi: Zener Diode 9.1 V 500 mW ±5% Surface Mount SOD-123.

A high-reliability second-source drop-in replacement with identical electrical and mechanical specifications.

  • Excellent direct drop-in option from a leading manufacturer
  • Identical electrical specifications and power rating
  • Fully RoHS3 compliant and widely available

A direct cross-reference part from Vishay that matches the original series' electrical specifications and physical outline.

  • Top-tier manufacturer equivalent with identical specs
  • Drop-in footprint compatibility
Lifecycle StatusObsoleteActiveActive
Market AvailabilityIn stockIn stockIn stock
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Related parts

PartMarket availabilityLifecycleAlternatives available
MMSZ5245BonsemiIn stockObsolete5Alternatives availableSee Alternatives
MMSZ5242BonsemiNon-stockObsolete3Alternatives availableSee Alternatives
MMSZ5226BonsemiDiscontinuedObsolete5Alternatives availableSee Alternatives
MMBZ5242BonsemiNon-stockObsolete5Alternatives availableSee Alternatives
ZMM5245BDiodes IncorporatedNon-stockObsolete3Alternatives availableSee Alternatives
MMBZ5242BLT1onsemiDiscontinuedObsolete6Alternatives availableSee Alternatives

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