All Alternatives

Alternatives to onsemi S310

onsemi S310 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 S310

S310 compared against its qualified second sources
S310onsemiS310onsemiSS310Taiwan Semiconductor Corporation+1more
FFF CompatibilityBoth parts utilize the exact same standard DO-214AB (SMC) package with identical anode and cathode terminal mapping.The physical dimensions, mounting style (SMD), and package shape are identical.All electrical parameters, including voltage, current, power dissipation, speed, and temperature range, meet or exceed the original part.Utilizes the industry-standard DO-214AB (SMC) surface-mount package. Pin configurations are identical.Matches physical package height, width, and lead spacing specifications of the original.All critical electrical ratings, including reverse breakdown voltage, current rating, and thermal performance, are fully compatible.
AI Summary

S310 by onsemi: Diode 100 V 3A Surface Mount DO-214AB (SMC).

Since onsemi acquired Fairchild Semiconductor, this active S310 part is the direct continuation of the original. It maintains identical electrical parameters and package dimensions, offering a seamless drop-in replacement.

  • Direct continuation of the original Fairchild line via onsemi, ensuring exact design consistency
  • Identical electrical performance specs: 100 V reverse voltage, 3 A average current, 850 mV forward voltage drop
  • Exact mechanical footprint in a standard DO-214AB (SMC) package

The SS310 from Taiwan Semiconductor is an industry-standard equivalent that matches all primary specifications of the original Fairchild part. It serves as an excellent drop-in second-source alternative.

  • Direct drop-in replacement with identical package, layout footprint, and terminal mapping
  • Matches original electrical specifications: 100 V, 3 A, and -55°C to 150°C operating temperature range
  • Excellent second-source option from a highly reputable discrete manufacturer
Lifecycle StatusObsoleteObsoleteActive
Market AvailabilityIn stockIn stockIn stock
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Frequently asked questions

Yes. The onsemi S310 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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