
BORN
A strong alternative in the same package with a higher power rating, offering a potential upgrade path.
ESD5Z5.0 is a 5V unidirectional TVS diode in a compact SOD-523 package, designed for ESD protection. Several alternatives are available, with PESD5Z5.0-N offering a potential upgrade in power handling.
Multiple candidates are available in the same SOD-523 package.
Care must be taken to match polarity (unidirectional) and ensure the power rating is sufficient for the application.
PESD5Z5.0-N is a strong candidate for direct replacement, as it matches the package, polarity, voltage, and capacitance, while offering higher power handling.
PESD5Z5.0-N by BORN is the most promising alternative, offering an upgraded power rating in the same package.
The main risk when substituting is choosing a part with a lower power rating or incorrect (bidirectional) polarity, which could lead to inadequate protection or circuit failure.

BORN
A strong alternative in the same package with a higher power rating, offering a potential upgrade path.
| Feature / factor | ESD5Z5.0 | PESD5Z5.0-N | TPESD5V0D5 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOD-523 | SOD-523 | SOD-523 | SOD-523 — Same package ensures form-fit compatibility.; TPESD5V0D5: Same package ensures form-fit compatibility. | |
| Polarity Or Type | Unidirectional | Unidirectional | Uni-directional | Unidirectional / Uni-directional — Functional match for unidirectional protection.; TPESD5V0D5: Functional match for unidirectional protection. | |
| Voltage V | 5.0 V | 5.0 V | - | 5.0 V — Matches reverse working voltage. | |
| Power W | 174 W | 250 W | 150 W | 250 W / 150 W — Higher power rating provides increased robustness.; TPESD5V0D5: Lower power rating reduces surge protection capability. | |
| Capacitance | 80 pF | 80 pF | 100 pF | 80 pF / 100 pF — Matches max capacitance, suitable for similar applications.; TPESD5V0D5: Higher capacitance may affect high-speed signal integrity. |
The best alternative found is PESD5Z5.0-N from BORN. It matches the critical parameters of the ESD5Z5.0, including the SOD-523 package and 5V unidirectional operation, and provides a higher peak power rating (250W vs 174W).