All Alternatives

Alternatives to KEMET C878AF35300AA1J

KEMET C878AF35300AA1J and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

C878AF35300AA1J compared against its qualified second sources
C878AF35300AA1JKEMETC870DF35300AA1JKEMETC274AC35300AA0JKEMET+1more
FFF CompatibilityThe part uses the identical aluminum cylindrical can package with an M8 threaded bottom stud and double Fast-on terminals, allowing direct drop-in replacement on existing mounting setups.Identical physical package size (45 mm diameter x 98 mm height) and identical contact styles.Rated for 470 VAC but has a lower lifetime grade of Class C (3,000 hours) compared to Class B (10,000 hours) for the original C878 series at this voltage.While the electrical contacts and M8 mounting stud are identical, the case is made of plastic rather than aluminum.Constructed in a plastic cylindrical can rather than an aluminum can, and is slightly shorter (93 mm vs 98 mm height).Meets all electrical requirements including the full 470 VAC voltage and 10,000-hour (Class B) operational lifetime.
AI Summary

C878AF35300AA1J by KEMET: Motor Start, Motor Run Capacitors (AC).

The C870DF35300AA1J serves as a direct mechanical drop-in sibling from the KEMET C87 family. It features identical physical package dimensions, terminal style, and M8 mounting bolt but has a shorter rated life of 3,000 hours at 470 VAC.

  • Direct mechanical drop-in from the same KEMET C87 series family
  • Identical physical dimensions (45 mm diameter x 98 mm height) and M8 mounting stud
  • Same double 6.3 mm x 0.8 mm Fast-on terminal layout
  • Shorter operational lifetime at 470 VAC: Class C (3,000 hours) vs. Class B (10,000 hours)

The C274AC35300AA0J is a plastic-case alternative from KEMET's C27 family. It matches the original's electrical performance and lifetime rating (10,000 hours at 470 VAC) but uses a plastic cylinder instead of aluminum.

  • Same 470 VAC continuous voltage rating and Class B (10,000 hours) operating lifetime
  • Same 30 uF capacitance value and 5% tolerance
  • Plastic housing material instead of aluminum can may alter mechanical clamping or thermal dissipation properties
  • Slightly shorter package height (93 mm vs 98 mm)
Lifecycle StatusActiveUnknownUnknown
Market AvailabilityNon-stockUnknownUnknown
REACHREACHUnknownUnknown
RoHSRoHSUnknownUnknown
DescriptionMotor Start, Motor Run Capacitors (AC) from KEMETThe C870DF35300AA1J serves as a direct mechanical drop-in sibling from the KEMET C87 family. It features identical physical package dimensioThe C274AC35300AA0J is a plastic-case alternative from KEMET's C27 family. It matches the original's electrical performance and lifetime rat
ManufacturerKEMETKEMETKEMET
TypeMotor Start, Motor Run Capacitors (AC)ComponentComponent
DatasheetOpenN/AN/A
Lead Time24 weeksUnknownUnknown
Country of Origin---
Export Control Class NumberEAR99EAR99EAR99
HTSUS Code8532.22.0055--
Moisture Sensitivity LevelNot Applicable--

Unlock all 3 alternatives

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

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 KEMET C878AF35300AA1J is active and in production. The parts listed here are qualified equivalents if you need a second source or better availability.

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