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Best Alternatives to MMSZ4697T1G

Package: SOD-123onsemiDiodes - Zener - SinglePackage: Tape & Reel (TR); Cut Tape (CT); Digi-Reel®Voltage - Zener (Nom) (Vz): 10 VTolerance: ±5%Current - Reverse Leakage @ Vr: 1 µA @ 7.6 VVoltage - Forward (Vf) (Max) @ If: 900 mV @ 10 mA

Finding a substitute for the onsemi MMSZ4697T1G, a 10V 500mW Zener diode in a SOD-123 package, involves matching key electrical parameters and package size. Several alternatives exist within the same onsemi product family.

AI replacement insight

Electrical risklow

For MMSZ5240BT1G, electrical risk is low. For other parts, voltage mismatch is a medium to high risk.

Package risklow

All reviewed candidates use the same SOD-123 package, minimizing layout changes.

Can it be replaced directly?

Direct replacement for MMSZ4697T1G should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

The most direct path is MMSZ5240BT1G, which matches all critical parameters. If unavailable, consider parts with slightly different voltages like MMSZ12T1G, but this requires circuit analysis.

Main risk

The main risk when substituting Zener diodes is a mismatch in the Zener voltage, which can lead to improper circuit operation or damage.

Recommended alternatives

2
MMSZ5240BT1G package
MMSZ5240BT1G

onsemi

Needs validationlow risk

A 10V, 500mW Zener diode in the same SOD-123 package, likely a direct replacement.

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Alternative comparison matrix

Feature / factorMMSZ4697T1GMMSZ5240BT1GMMSZ12T1GAlt 3Compatibility / risk
PackageSOD-123SOD-123SOD-123SOD-123 — Same package and pin count.; MMSZ12T1G: Same package and pin count.
Voltage10.0V10.0V12.0V10.0V / 12.0V — Zener voltage matches.; MMSZ12T1G: 20% higher Zener voltage.
Power0.5W0.5W0.5W0.5W — Power dissipation matches.; MMSZ12T1G: Power dissipation matches.
Tolerance±5%±5%±5%±5% — Voltage tolerance matches.; MMSZ12T1G: Voltage tolerance matches.
LifecycleActiveActive-Active — Both parts are active.

Application & sourcing insights

Questions & answers

Verified drop-in options for MMSZ4697T1G 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.