
RUILON
Strong match for package, voltage, and current ratings. A potential pin-compatible replacement.
Finding a replacement for the PSMD050 0.5A resettable fuse involves matching its 0805 package, 6V rating, and key current characteristics. Several alternatives exist, but careful review of hold and trip currents is critical.
Many available parts have different current ratings that alter circuit protection.
The 0805 package is a standard, making physical replacement straightforward.
Direct replacement for PSMD050 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The most direct replacement path is to use SMD0805P050TF, which aligns on all critical parameters.
Using a substitute with a higher hold/trip current, which would fail to protect the downstream circuit as intended.

RUILON
Strong match for package, voltage, and current ratings. A potential pin-compatible replacement.
| Feature / factor | PSMD050 | SMD0805P050TF | SMD0805-075C-16V | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0805 | 0805 | 0805 | 0805 — Package size matches.; SMD0805-075C-16V: Package size matches. | |
| Current | 1.0A | 1.0A | 1.5A | 1.0A / 1.5A — Trip current matches.; SMD0805-075C-16V: Trip current is higher. | |
| Voltage | 6.0V | 6.0V | 16.0V | 6.0V / 16.0V — Max voltage rating matches.; SMD0805-075C-16V: Higher voltage rating provides more design margin. | |
| Power | 0.5W | 0.5W | - | 0.5W — Power dissipation matches. |
Verified drop-in options for PSMD050 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.