WPE3V3D3ULA
WPMtek(Wei Pan Microelectronics)
Needs validationlow risk
A strong alternative in the same SOD-323 package with matching 3.3V standoff voltage and higher power rating.
Best Alternatives to ESDLC3V3D3B
ESDLC3V3D3B is a popular 3.3V bi-directional TVS diode in a SOD-323 package, offering 300W surge protection for high-speed data lines. Key alternatives exist with similar or enhanced performance.
AI replacement insight
Electrical risklow
Key parameters match or are improved. Verify clamping voltage curve.
Package risklow
Package and pin count match standard SOD-323 footprint.
Sourcing riskmedium
Check availability and lead time of the chosen alternative.
Can it be replaced directly?
Yes, WPE3V3D3ULA is a strong candidate for direct replacement, matching key electrical parameters and package.
Best replacement path
WPE3V3D3ULA is the most promising direct replacement path, offering improved power handling in the same package.
Main risk
The primary risk is ensuring the replacement's capacitance and clamping voltage are suitable for the specific application.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | ESDLC3V3D3B | WPE3V3D3ULA | ESDSLC3V3D3BS | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOD-323 | SOD-323 | SOD-323 | SOD-323 — Same package and pin count.; ESDSLC3V3D3BS: Same package and pin count. | |
| Voltage | 3.3V | 3.3V | 3.3V | 3.3V — Reverse standoff voltage matches.; ESDSLC3V3D3BS: Reverse standoff voltage matches. | |
| Polarity Or Type | Bi-directional | Bi-directional | - | Bi-directional — Polarity matches. | |
| Power | 300W | 360W | Not specified (Est. <100W) | 360W / Not specified (Est. <100W) — Higher peak pulse power rating.; ESDSLC3V3D3BS: Significantly lower peak pulse power. | |
| Capacitance | 1.0pF | 1.0pF | 1.35pF | 1.0pF / 1.35pF — Junction capacitance matches.; ESDSLC3V3D3BS: Junction capacitance is very similar. | |
| Current | 14A (at Vc) | - | 7A | 7A — Lower peak pulse current. |
Application & sourcing insights
Questions & answers
The best alternative found is WPE3V3D3ULA. It matches the 3.3V standoff voltage, bi-directional polarity, and SOD-323 package, while offering a higher power rating.