PESDNC2FD5VBH
Prisemi
Needs validationlow risk
A strong pin-compatible candidate with a higher power rating, but different capacitance.
Best Alternatives to ESD5451X-ES
ESD5451X-ES is a 5V bi-directional TVS diode in a DFN1006-2L package, offering robust ±30kV ESD protection. Finding a substitute requires matching the package, voltage, and directionality, while carefully checking power ratings and capacitance.
AI replacement insight
Electrical riskmedium
Capacitance and clamping voltage vary between candidates and require verification.
Package risklow
DFN1006-2L is a common package with a standard footprint.
Sourcing risklow
Multiple vendors offer parts in this package and voltage rating.
Can it be replaced directly?
Direct replacement for ESD5451X-ES should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
The most promising path is Prisemi's PESDNC2FD5VBH, which offers an upgrade in power rating but requires checking for capacitance impact.
Main risk
The main risk is ensuring the substitute's capacitance does not negatively impact signal integrity, and that its clamping voltage and power rating provide adequate protection.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | ESD5451X-ES | PESDNC2FD5VBH | UAD8C05L01-ES | SELC2F5V1B | Compatibility / risk |
|---|---|---|---|---|---|
| Package | DFN1006-2L | DFN1006-2L | DFN1006-2L | DFN1006-2L | DFN1006-2L — Form factor matches.; UAD8C05L01-ES: Form factor matches.; SELC2F5V1B: Form factor matches.; WE05DF-BH: Form factor matches. |
| Voltage | 5.0V | 5.0V | 5.0V | - | 5.0V — Working voltage matches.; UAD8C05L01-ES: Working voltage matches.; WE05DF-BH: Working voltage matches. |
| Power | 96W | 100W | 80W | 80W | 100W / 80W / 77W — Slightly higher power rating.; UAD8C05L01-ES: Lower power rating offers less protection.; SELC2F5V1B: Lower power rating offers less protection.; WE05DF-BH: Lower power rating offers less protection. |
| Capacitance | 15pF | 35pF | 0.3pF | 0.3pF | 35pF / 0.3pF — Higher capacitance may affect high-speed signals.; UAD8C05L01-ES: Significantly lower capacitance may be beneficial for high-speed lines but is a parametric difference.; SELC2F5V1B: Significantly lower capacitance. |
| Breakdown Voltage | 5.6V | 6.4V | - | - | 6.4V — Slightly higher breakdown voltage. |
| Clamping Voltage | 10V @ 1A | - | - | 12V @ 1A | 12V @ 1A — Higher clamping voltage reduces protection level. |
| Polarity Or Type | Bi-directional | - | - | - | Unknown — Directionality must be verified from datasheet. |
Application & sourcing insights
Questions & answers
Verified drop-in options for ESD5451X-ES 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.