π140U31
MI
Needs validationlow risk
Parametrically identical, but channel direction configuration must be verified for pin compatibility.
Best Alternatives to π141U31
π141U31 is a 4-channel, 150Kbps digital isolator from 2Pai Semi in a 16-lead SOIC package, offering 3kVrms isolation. This page provides analysis of potential alternatives and key differences to consider for replacement.
AI replacement insight
Package riskhigh
Pinout mismatch due to channel configuration is a high risk if not verified.
Electrical riskmedium
Some alternatives have weaker CMTI, increasing susceptibility to noise.
Sourcing risklow
Multiple alternatives exist from the same manufacturer, suggesting good family availability.
Can it be replaced directly?
There is no confirmed direct, pin-to-pin replacement for π141U31 without verifying the channel direction configuration from the datasheet. π142U31 and π140U31 are the most likely candidates but require this check.
Best replacement path
The strongest candidates are π142U31 and π140U31, which match all key electrical parameters. However, their channel direction configurations likely differ from the target and must be verified from the datasheets to ensure pin compatibility for your application.
Main risk
The primary risk is pinout incompatibility due to different channel direction configurations across this family of parts (e.g., 3 forward/1 reverse vs. 2 forward/2 reverse).
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | π141U31 | π140U31 | π142U31 | π162U31 | Compatibility / risk |
|---|---|---|---|---|---|
| Channel Configuration | Likely 3F/1R | Likely 4F/0R | Likely 2F/2R | - | Likely 4F/0R / Likely 2F/2R — Part number suggests different channel direction vs target's likely 3F/1R.; π142U31: Part number suggests different channel direction vs target's likely 3F/1R. |
| 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 — matched; π142U31: matched; π162U31: Package and pin count match.; π141M31: Channel configuration is likely identical based on part number. |
| Data Rate | 150 Kbps | 150 Kbps | 150 Kbps | 150 Kbps | 150 Kbps / 10 Mbps — matched; π142U31: matched; π162U31: matched; π141M31: Candidate is much faster, which may affect power consumption. |
| Cmti | 150 kV/µs | - | 150 kV/µs | 150 kV/µs | 150 kV/µs / 75 kV/µs — matched; π162U31: matched; π141M31: Candidate has significantly lower common-mode transient immunity. |
| Number Of Channels | 4 | - | - | 6 | 6 — Candidate has more channels; unused channels may need termination. |
Application & sourcing insights
Questions & answers
The best alternatives for π141U31 are likely π142U31 or π140U31, as they share the same package, channel count, and key electrical ratings. However, you must verify the channel direction configuration from the datasheet to ensure it matches your application's needs.