AZ431AN-ATRG1
Diodes Incorporated
Needs validationlow risk
A strong cross-vendor alternative with matching package and voltage tolerance; verify temperature requirements.
Best Alternatives to ME431AXG
ME431AXG is a popular SOT-23 adjustable precision shunt regulator. This page reviews and compares potential alternatives like the TL431 and AZ431 series for your application.
AI replacement insight
Electrical riskmedium
Tolerance and temperature coefficient must be verified for precision applications.
Package risklow
SOT-23 is a standard package, but pinout should be confirmed.
Sourcing risklow
TL431/AZ431 are widely available from multiple vendors.
Can it be replaced directly?
Yes, several manufacturers produce pin-compatible '431' regulators. AZ431AN-ATRG1 is a strong candidate, requiring verification of the operating temperature range for your application.
Best replacement path
AZ431AN-ATRG1 offers the closest parametric match, including the 0.4% tolerance.
Main risk
The primary risk is the lower maximum operating temperature of most alternatives (125°C vs. target's 150°C).
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | ME431AXG | AZ431AN-ATRG1 | TL431 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT-23 | SOT23 | - | SOT-23 — Package matches. | |
| Tolerance | 0.4% | 0.4% | - | Not specified — Initial voltage tolerance is a key spec and is missing. | |
| Current | 1mA to 100mA | 1mA to 100mA | - | 1mA to 100mA — Sink current capability matches. | |
| Temperature | -40°C to 150°C | -40°C to +125°C | - | -40°C to +125°C — Candidate has a lower maximum operating temperature. | |
| Application | Shunt Regulator | - | Shunt Regulator | Shunt Regulator — Both are '431' type shunt regulators. |
Application & sourcing insights
Questions & answers
The AZ431AN-ATRG1 from Diodes Inc. is a strong alternative, matching key specs like 0.4% tolerance and SOT-23 package, but has a lower max temperature of 125°C.