All Alternatives

Alternatives to onsemi KBU8B

onsemi KBU8B 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 KBU8B

KBU8B compared against its qualified second sources
KBU8BonsemiKBU8B-M3\AVishay General Semiconductor - Diodes DivisionKBU8BNavitas Semiconductor, Inc.+3more
FFF CompatibilityPins are perfectly compatible with the standard inline pinout and 5.08mm spacing.The package shape, mounting hole, and thickness match the original Fairchild/onsemi KBU case.Forward voltage and thermal resistance match or slightly exceed the original onsemi component.Uses the identical KBU package with the standard '+ ~ ~ -' pin assignment and spacing.Physical dimensions and mounting profile are fully interchangeable with the original onsemi part.Electrical characteristics, including forward voltage drop, surge capability, and reverse current, match the original specs.
AI Summary

KBU8B by onsemi: Bridge Rectifier Single Phase Standard 100 V Through Hole KBU.

Manufactured by Vishay, this active component is an exact physical and electrical drop-in. It features a modernized, halogen-free, and lead-free construction under the updated -M3/A suffix.

  • Halogen-free and fully RoHS-compliant construction (-M3 termination)
  • Direct physical drop-in in a standard KBU package
  • Matches original 100V, 8A, and 300A surge ratings

This is a direct 1:1 drop-in replacement manufactured by Navitas Semiconductor (GeneSiC). It provides identical physical and electrical specifications, making it a seamless solution to replace the obsolete onsemi part.

  • Active production status, ensuring long-term availability
  • Direct physical drop-in equivalent with matching KBU package dimensions
  • Identical electrical parameters (100V reverse voltage, 8A rectified current, 300A surge current)
Lifecycle StatusObsoleteActiveActive
Market AvailabilityDiscontinuedIn stockIn stock
REACHREACHUnknownUnknown
RoHSRoHSRoHSUnknown
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