All Alternatives

Alternatives to onsemi LL4148

onsemi LL4148 and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

Equivalent and substitute parts for onsemi LL4148

LL4148 compared against its qualified second sources
LL4148onsemiLL4148onsemiLL4148-GS08Vishay General Semiconductor - Diodes Division+2more
FFF CompatibilityMatches the exact SOD-80/MiniMELF (DO-213AC) package dimensions, pad layout, and anode/cathode polarity markings.Uses the identical hermetically sealed glass surface-mount cylinder package shape and terminal spacing.Matches or exceeds all key electrical characteristics including a fast 4 ns reverse recovery time and a 200 mA average rectified forward current.Fully compatible physical mounting on the existing SOD-80 / MiniMELF footprint.Hermetically sealed glass SOD-80 body matches the physical profile of the original component.Offers identical 4 ns switching speed while increasing continuous forward current capability to 300 mA.
AI Summary

LL4148 by onsemi: Diode 75 V 150mA Surface Mount LL-34.

This onsemi diode is the primary industry standard replacement for the obsolete LL4148, offering identical physical packaging and equivalent or superior electrical specifications. Its 100 V DC reverse voltage rating provides excellent safety margin.

  • Direct industry standard replacement for LL4148 in SOD-80 / MiniMELF package.
  • Higher reverse breakdown voltage rating of 100 V.
  • Identical pin assignment with 2-terminal anode and cathode configuration.

The Vishay LL4148-GS08 is a premium alternative that offers a higher 300 mA continuous forward current rating in the same SOD-80 package. Ordering suffix '-GS08' denotes standard 2,500-unit tape and reel packaging, while '-GS18' is available for larger 10,000-unit reels.

  • Active high-volume production with excellent long-term availability.
  • Higher forward current rating of 300 mA compared to the standard 200 mA.
  • Pin-compatible drop-in replacement with identical anode/cathode polarity.
Lifecycle StatusObsoleteObsoleteActive
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Frequently asked questions

Yes. The onsemi LL4148 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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