
Yangjie Technology
A strong pin-compatible alternative with higher voltage and current ratings in the same SOD-323 package.
The 1SS355 is a popular 80V, 100mA fast switching diode in a SOD-323 package, used in high-speed signal applications. Several pin-compatible alternatives like the BAS316 and 1N4148WS exist with similar or better performance.
Low when using pin-compatible parts like BAS316, but high if a slower diode is chosen.
All strong candidates use the same SOD-323 package, ensuring form and fit compatibility.
Strong alternatives like BAS316 and 1N4148WS are common, multi-sourced components.
Direct replacement for 1SS355 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
BAS316 offers a direct upgrade path with higher voltage and current ratings while matching the critical package and switching speed.
The main risk is selecting a part with a slower reverse recovery time (Trr), which can degrade performance in high-speed switching applications.

Yangjie Technology
A strong pin-compatible alternative with higher voltage and current ratings in the same SOD-323 package.
| Feature / factor | 1SS355 | BAS316 | 1N4148WS | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOD-323 | SOD-323 | - | SOD-323 — Matches target package. | |
| Voltage | 80V | 100V | - | 100V — Higher voltage rating, though some sources list 75V. | |
| Current | 100mA | 250mA | - | 150mA — Higher current rating. | |
| Trr | 4ns | ≤ 4ns | - | 4ns — Matches target's critical reverse recovery time. |
Verified drop-in options for 1SS355 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.