
Siproin
A functional alternative with a different 3.3V output and slightly lower 15V max input voltage.
ME6210A30M3G is a 3.0V, 500mA SOT23-3 LDO regulator from MICRONE. Finding a direct replacement requires matching the 3.0V output, 18V input rating, and low quiescent current.
Output voltage mismatch is critical for most circuits. Input voltage and quiescent current may also differ.
SOT23-3 is a standard package, but pinout must always be verified.
There are no known direct, drop-in replacements for the ME6210A30M3G. All similar parts reviewed have critical parametric differences.
Re-evaluate circuit tolerance for a 3.3V regulator or perform a new search for a 3.0V/500mA LDO in a SOT23-3 package.
The primary risk is the output voltage mismatch, as most common alternatives provide 3.3V instead of the required 3.0V.

Siproin
A functional alternative with a different 3.3V output and slightly lower 15V max input voltage.
| Feature / factor | ME6210A30M3G | SSP7603P33MR | HE9073A33MR | ME6118A33M3G | Compatibility / risk |
|---|---|---|---|---|---|
| Voltage | 18V | 15V | 7V | 18V | 15V / 7V / 18V — Max input voltage is lower.; HE9073A33MR: Max input voltage is significantly lower.; ME6118A33M3G: Max input voltage matches. |
| Current | 500mA | 500mA | 0.3µA | 52µA | 500mA / 0.3µA / 52µA — Output current matches.; HE9073A33MR: Quiescent current is lower (better).; ME6118A33M3G: Quiescent current is much higher. |
| Package | SOT23-3 | SOT23-3 | SOT-23-3 | SOT23-3 | SOT23-3 / SOT-23-3 — Package is compatible.; HE9073A33MR: Package is compatible.; ME6118A33M3G: Package is compatible. |
No direct drop-in replacements were found. Alternatives like SSP7603P33MR exist but have a 3.3V output and may have different input voltage ratings, requiring circuit validation.