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Alternatives to onsemi MURS120T3

onsemi MURS120T3 and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

MURS120T3 compared against its qualified second sources
MURS120T3onsemiMURS120T3GonsemiMURS220T3Gonsemi+4more
FFF CompatibilityShares the exact same DO-214AA (SMB) package and standard 2-pin diode footprint.Identical physical dimensions and mounting style as the original part.Direct modern drop-in with matching electrical performance and thermal ratings.Standard SMB package with identical anode/cathode pinout.Uses the same physical DO-214AA package envelope.Maintains the same 200 V rating and speed while offering an upgraded current capacity.
AI Summary

MURS120T3 by onsemi: Diode 200 V 2A Surface Mount SMB.

This is the direct lead-free (RoHS compliant) replacement from onsemi for the obsolete MURS120T3, maintaining identical performance characteristics and mechanical specifications.

  • Direct manufacturer-recommended Pb-free replacement
  • Identical electrical specifications including 200 V breakdown and 35 ns recovery
  • Fully RoHS compliant and in active production

An upgraded drop-in sibling from the same onsemi family, offering double the average rectified current capacity at 2.0 A while preserving the original speed and voltage ratings.

  • Upgraded average forward current rating of 2.0 A (vs 1.0 A original)
  • Same onsemi MURS series family and 35 ns recovery time
  • Exceeds safety margins for high-power applications
  • Slightly higher forward voltage drop under peak current loads
Lifecycle StatusObsoleteActiveActive
Market AvailabilityDiscontinuedIn stockIn stock
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RoHSRoHSRoHSRoHS
DescriptionDiode 200 V 2A Surface Mount SMBDiode 200 V 1A Surface Mount SMBDiode 200 V 2A Surface Mount SMB
Manufactureronsemionsemionsemi
TypeDiodesDiodesDiodes
DatasheetOpenOpenOpen
Lead Time26 weeks22 weeks16 weeks
Country of Origin---
Export Control Class NumberEAR99EAR99EAR99
HTSUS Code8541.10.0080--
Moisture Sensitivity Level1 (Unlimited)--
SpeedFast Recovery =< 500ns, > 200mA (Io)--
TechnologyStandard--
Mounting TypeSurface Mount--
Package / CaseDO-214AA, SMB--
Supplier Device PackageSMB--
Reverse Recovery Time (trr)35 ns--
Current - Reverse Leakage @ Vr2 µA @ 200 V--
Voltage - DC Reverse (Vr) (Max)200 V--

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Related parts

PartMarket availabilityLifecycleAlternatives available
MURS320T3onsemiDiscontinuedObsolete6Alternatives availableSee Alternatives
MURD620CTGonsemiNon-stockObsolete4Alternatives availableSee Alternatives

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Frequently asked questions

Yes. The onsemi MURS120T3 is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.

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