All Alternatives

Alternatives to onsemi 1N5908

onsemi 1N5908 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 1N5908

1N5908 compared against its qualified second sources
1N5908onsemiSMCJ5.0A-TRSTMicroelectronics1.5KE6.8ALittelfuse Inc.+1more
FFF CompatibilityThis is a surface-mount device in a DO-214AB (SMC) package, which is physically incompatible with the original through-hole axial DO-201AD footprint and requires a PCB redesign.Surface-mount package (DO-214AB/SMC) instead of through-hole axial leaded package.Matches or exceeds key electrical parameters including 1500W power rating, 5.0V reverse standoff voltage, and similar clamping behavior.Uses a standard through-hole DO-201 / DO-27 axial package that fits directly into the existing 1N5908 board layout.Identical through-hole axial-leaded configuration and mounting style.The reverse standoff voltage is slightly higher at 5.8V (vs 5.0V) and the clamping voltage is higher at 10.5V (vs 8.5V), which may offer less tight protection for extremely sensitive 5V lines.
AI Summary

1N5908 by onsemi: 8.5V Clamp 120A (8/20µs) Ipp Tvs Diode Through Hole CB429.

This is the manufacturer's officially recommended surface-mount replacement. While it requires a transition from through-hole to SMD, it matches the electrical protection profile of the original 1N5908 perfectly.

  • Manufacturer recommended replacement series
  • Same 1500W peak pulse power capability
  • Matches the 5.0V reverse standoff voltage ($V_{RWM}$) exactly
  • Requires PCB layout redesign to accommodate surface-mount pads instead of through-hole vias.
  • Slightly higher clamping voltage (9.2V vs 8.5V max) and breakdown voltage (6.4V vs 6.0V min).

This is the closest active through-hole equivalent in the standard 1.5KE series. It mounts directly into the same DO-201 footprint, though it has slightly higher voltage thresholds.

  • Through-hole axial leaded package (DO-201AD compatible)
  • Direct physical drop-in option for existing board layouts
  • Matches the 1500W peak pulse power rating of the original part
  • Higher reverse standoff voltage (5.8V vs 5.0V) and breakdown voltage (6.45V vs 6.0V).
  • Higher maximum clamping voltage (10.5V vs 8.5V) which provides less rigid protection for strict 5V thresholds.
Lifecycle StatusObsoleteActiveActive
Market AvailabilityIn stockIn stockIn stock
REACHREACHREACHREACH
RoHSRoHSRoHSRoHS
——— ————————— ——— ———————— ———————— ————— ———
—————— ————————— ————————— ——— ———————— ——————
———— ————— ————— —————————— ————————— ——— ————
—— ————————— ———————— ————— —————————— ————
——— ————————— ——— ———————— ———————— ————— ———
—————— ————————— ————————— ——— ———————— ——————
———— ————— ————— —————————— ————————— ——— ————
—— ————————— ———————— ————— —————————— ————

Unlock all 3 alternatives

Sign in with your work email to read every gated row on this table — description, lead time, origin, export control and the full technical data.

Sign in to unlock

Signing in creates a free Parter account. We use your name and email to contact you about Parter — see our Privacy Policy.

  • Find & compare verified second sources
  • Spot risk early with real-time part monitoring
  • Stay compliant and production-ready

Related parts

PartMarket availabilityLifecycleAlternatives available
1N5908RL4GLittelfuseDiscontinuedObsolete6Alternatives availableSee Alternatives
1N5820STMicroelectronicsDiscontinuedObsolete6Alternatives availableSee Alternatives
1N5240BTRDiodes IncorporatedNon-stockObsolete3Alternatives availableSee Alternatives
2N3906onsemiIn stockObsolete6Alternatives availableSee Alternatives
2N3904onsemiNon-stockObsolete5Alternatives availableSee Alternatives
2N2907onsemiDiscontinuedObsolete5Alternatives availableSee Alternatives

You searched one part. Parter watches your whole BOM.

  1. All your BOM, at once

    Parter maps every line to live stock, lead time, lifecycle and compliance data across the entire market — not part by part.

  2. Hear about problems before they hit production

    Allocation, EOL and last-time-buy notices surface the moment they appear, not when your buyer's PO bounces.

  3. Qualified replacements in minutes, not days

    Every at-risk line gets form-fit-function matches like the ones above — deltas flagged, evidence attached. Review, push to your BOM, and Parter starts watching the new part too.

Frequently asked questions

Yes. The onsemi 1N5908 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.

Schedule a demo

See Parter in action

Discover how Parter can help your hardware team:

  • Streamline your hardware operations with AI
  • Detect and prevent lifecycle disruptions
  • Accelerate product development
  • Stay compliant and production-ready