Best Alternatives to SM712-ES

Package: SOT-23ElecSuperTVS - DiodesConfiguration: BidirectionalPeak Pulse Power: 400 WESD Protection (Contact): ±30 kVESD Protection (Air): ±30 kVIO Capacitance: 40 pF

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.

AI replacement insight

Electrical risklow

Key electrical parameters are identical.

Package risklow

Pinout is highly likely to match but requires verification.

Sourcing risklow

Both parts are from a less common manufacturer; check stock.

Can it be replaced directly?

Direct replacement for SM712-ES should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Start with Datasheet verified or Strong match candidates for SM712-ES, then review parametric alternatives for package and electrical fit.

Main risk

The main risk is assuming pin-for-pin compatibility without verifying the datasheet, although the risk is low given the similarities.

Recommended alternatives

1
PSM712-ES package
PSM712-ES

ElecSuper

Needs validationlow risk

Strong parametric match with identical package, power, and capacitance. Likely pin-compatible.

View details

Alternative comparison matrix

Feature / factorSM712-ESPSM712-ESAlt 2Alt 3Compatibility / risk
PackageSOT-23SOT-23SOT-23 — Same package and pin count.
ConfigurationBidirectionalBidirectionalBidirectional — Both are bidirectional arrays.
Power400 W400 W400 W — Peak pulse power matches.
Capacitance40 pF40 pF40 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.

Application & sourcing insights

Questions & answers

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.