
ElecSuper
Strong parametric match with identical package, power, and capacitance. Likely pin-compatible.
SM712-ES is a 400W bidirectional TVS diode array in a SOT-23 package, designed for protecting RS-485 interfaces. Finding a replacement requires matching its 12V standoff voltage, bidirectional configuration, and low capacitance.
Key electrical parameters are identical.
Pinout is highly likely to match but requires verification.
Both parts are from a less common manufacturer; check stock.
Direct replacement for SM712-ES should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Start with Datasheet verified or Strong match candidates for SM712-ES, then review parametric alternatives for package and electrical fit.
The main risk is assuming pin-for-pin compatibility without verifying the datasheet, although the risk is low given the similarities.

ElecSuper
Strong parametric match with identical package, power, and capacitance. Likely pin-compatible.
| Feature / factor | SM712-ES | PSM712-ES | Alt 2 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT-23 | SOT-23 | SOT-23 — Same package and pin count. | ||
| Configuration | Bidirectional | Bidirectional | Bidirectional — Both are bidirectional arrays. | ||
| Power | 400 W | 400 W | 400 W — Peak pulse power matches. | ||
| Capacitance | 40 pF | 40 pF | 40 pF — I/O capacitance matches, suitable for similar speed interfaces. | ||
| Temperature | -40 °C to 125 °C | -40 °C to 125 °C | -40 °C to 125 °C — Operating temperature range is identical. |
Verified drop-in options for SM712-ES 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.