AZ1143-04F
TECH PUBLIC
Needs validationlow risk
Strong parametric match with identical package, voltage, and capacitance; pinout requires verification.
Best Alternatives to TPAZ1143-04F
Find and compare replacements for the TPAZ1143-04F, a 4-line 3.3V uni-directional TVS diode in a DFN2510-10 package. Key parameters for alternatives include working voltage, capacitance, and pinout compatibility.
AI replacement insight
Electrical riskmedium
Voltage and directionality must be exact matches to avoid circuit damage or malfunction.
Package risklow
Pinout for DFN2510-10 is standard for this function but must be verified.
Sourcing riskmedium
Some part numbers are used by multiple manufacturers (clones); verify original source.
Can it be replaced directly?
Direct replacement for TPAZ1143-04F should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
AZ1143-04F offers the most direct replacement path due to its strong parametric alignment with the target.
Main risk
The main risk is selecting a part with the wrong working voltage (e.g., 5V instead of 3.3V) or incorrect directionality, which could fail to protect the circuit or interfere with signals.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | TPAZ1143-04F | AZ1143-04F | ESD73034D | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | DFN2510-10 | DFN2510-10 | DFN2510-10 | DFN2510-10 — Package dimensions and pin count match.; ESD73034D: Package dimensions and pin count match. | |
| Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V — Reverse working voltage matches target.; ESD73034D: Reverse working voltage matches target. | |
| Directionality | Uni-directional | Uni-directional | Bi-directional | Uni-directional / Bi-directional — Directionality matches target.; ESD73034D: Candidate is bi-directional, target is uni-directional. Requires circuit review. | |
| Capacitance | 0.3 pF | 0.3 pF | 0.25 pF | 0.3 pF / 0.25 pF — Typical capacitance matches target.; ESD73034D: Lower capacitance is an improvement. | |
| Esd Rating | ±20kV Air | ±20kV Air, ±15kV Contact | - | ±20kV Air, ±15kV Contact — ESD protection levels are equivalent. |
Application & sourcing insights
Questions & answers
Verified drop-in options for TPAZ1143-04F 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.