π140U31
MI
Needs validationmedium risk
Strong functional alternative with matching key specs; channel direction must be verified from datasheet.
Best Alternatives to π142U31
The π142U31 is a 4-channel, 150Kbps digital isolator from 2Pai Semi in a SOIC-16 package. When searching for a replacement, it's crucial to match the channel configuration, data rate, and isolation voltage.
AI replacement insight
Package risklow
Package is a standard SOIC-16.
Electrical riskmedium
Pinout must be verified. Other parameters are well-matched by top candidates.
Sourcing risklow
Multiple similar parts exist within the same manufacturer family.
Can it be replaced directly?
Direct replacement for π142U31 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Investigate other π14xU31 series parts like π141U31 or π140U31, which match key parameters but require pinout verification for channel direction.
Main risk
Pinout mismatch due to different channel direction configurations within the same product family.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | π142U31 | π140U31 | π141U31 | π162U31 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 16-Lead SOIC_N | 16-lead SOIC_N | 16-lead SOIC_N | 16-Lead SOIC_N | 16-lead SOIC_N / 16-Lead SOIC_N — Package and pin count match.; π141U31: Package and pin count match.; π162U31: Package dimensions appear identical. |
| Data Rate | 150 Kbps | 150 Kbps | 150 Kbps | 150 Kbps | 150 Kbps — Data rate matches.; π141U31: Data rate matches.; π162U31: Data rate matches target. |
| Common-Mode Transient Immunity | 150 kV/µs | 150 kV/µs | - | - | 150 kV/µs — CMTI matches. |
| Channel Direction | 2F/2R (Assumed) | unknown | unknown | - | unknown — Likely differs from target (e.g., 4F/0R vs 2F/2R). Pinout must be verified.; π141U31: Likely differs from target (e.g., 3F/1R vs 2F/2R). Pinout must be verified. |
| Number Of Channels | 4 | - | 4 | 6 | 4 / 6 — Channel count matches.; π162U31: Candidate has more channels, pinout will differ. |
| Supply Voltage | 3 V to 5.5 V | - | 3 V to 5.5 V | - | 3 V to 5.5 V — Supply voltage range matches. |
| Isolation Voltage | 3000 Vrms | - | - | 3000 Vrms | 3000 Vrms — Isolation voltage matches target. |
Application & sourcing insights
Questions & answers
Verified drop-in options for π142U31 are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.