WS03DLC-B
Leiditech
Needs validationmedium risk
Matches package and voltage, but has a lower power rating. Conflicting data exists for exact power value.
Best Alternatives to TPCDSOD323-T03SC
Reviewing alternatives for the TECH PUBLIC TPCDSOD323-T03SC, a 3.3V, 500W bi-directional TVS diode in a SOD-323 package. Key considerations for substitutes are matching the working voltage and ensuring adequate power handling.
AI replacement insight
Electrical riskhigh
All candidates have lower peak pulse power ratings (200W-400W vs 500W).
Package risklow
All candidates share the same SOD-323 package.
Can it be replaced directly?
No direct drop-in replacements with equivalent or better power ratings were found. All potential alternatives have a lower peak pulse power rating, posing a high risk if the application requires the full 500W capability.
Best replacement path
The best path is to select a candidate with the highest available power rating, such as the Leiditech WS03DLC-B (~400W), and perform a thorough electrical stress analysis for the specific application.
Main risk
The primary risk is electrical overstress and potential circuit failure, as all reviewed candidates have lower power handling capability than the original 500W part.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | TPCDSOD323-T03SC | WS03DLC-B | WS03DLC-B-ES | TUSD03FBX | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOD-323 | SOD-323 | SOD-323 | SOD-323 | SOD-323 — Package matches.; WS03DLC-B-ES: Package matches, ensuring form-fit compatibility.; TUSD03FBX: Package matches. |
| Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V — Working voltage matches.; WS03DLC-B-ES: Working voltage matches.; TUSD03FBX: Working voltage matches. |
| Power | 500W | 260W-400W | 200W | 350W | 260W-400W / 200W / 350W — Lower peak pulse power; datasheets show conflicting values.; WS03DLC-B-ES: Significantly lower peak pulse power.; TUSD03FBX: Lower peak pulse power. |
| Capacitance | 50pF | 1pF | 1.2pF | 0.8pF | 1pF / 1.2pF / 0.8pF — Capacitance is much lower.; WS03DLC-B-ES: Capacitance is much lower, may affect filtering if intended.; TUSD03FBX: Capacitance is much lower. |
| Clamping Voltage | 9V @ 20A | - | 9V @ 1A | - | 9V @ 1A — Clamping voltage test condition is not comparable (1A vs 20A). |
Application & sourcing insights
Questions & answers
Currently, no direct upgrade or equivalent is identified. Parts like Leiditech's WS03DLC-B are form and voltage compatible but have a lower power rating (~400W vs 500W), which requires careful engineering review before use.