
MSKSEMI
A strong pin-compatible alternative in a SOD-523 package with similar electrical characteristics and higher power rating.
ESD5Z5.0T1G is a popular 5V uni-directional TVS diode from onsemi in a compact SOD-523 package. This page reviews and compares potential alternatives for your design.
For the top candidate, risk is low. Other options have higher risk due to lower power ratings.
SOD-523 is a standard package, so form-fit risk is minimal for matched candidates.
Not applicable for this passive component.
Direct replacement for ESD5Z5.0T1G should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The most promising path is ESD5Z5.0T1G-MS, which is nearly a direct cross. Other options involve significant downgrades in power rating.
The primary risk is using a bi-directional diode instead of the uni-directional target, or selecting a part with insufficient peak power handling.

MSKSEMI
A strong pin-compatible alternative in a SOD-523 package with similar electrical characteristics and higher power rating.
| Feature / factor | ESD5Z5.0T1G | ESD5Z5.0T1G-MS | BSD5C051V | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOD-523 | SOD-523 | - | SOD-523 — Identical package and pin count. | |
| Polarity Or Type | Uni-directional | Uni-directional | - | Uni-directional — Polarity matches target (FAE verified). | |
| Voltage V | 5.0V | 5.0V | - | 5.0V — Working voltage matches. | |
| Power W | 174W | 200W | - | 100W — Significantly lower peak power rating. | |
| Current A | 9.4A | 8.5A | - | 8.5A — Slightly lower peak pulse current. | |
| Capacitance | 80pF | 80pF | - | 10pF — Much lower capacitance may affect circuit behavior. |
Verified drop-in options for ESD5Z5.0T1G 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.