Is there a pin-compatible replacement for ME6119C40M5G?

Several candidates exist in the same SOT-23-5 package, but their pinouts have not been verified for compatibility. All identified options have significant electrical differences, so they are not pin-compatible replacements without review.

What risks should I check before replacing ME6119C40M5G?

Key risks include output voltage mismatch (e.g., 3.6V vs. 4.0V), a lower maximum input voltage (e.g., 15V vs. 18V), a reduced operating temperature range, and potential pinout differences. A full datasheet review is essential.

ME6119C40M5G Alternatives, Datasheet & Cross Reference | MICRONE

ME6119C40M5G is a 4.0V, 400mA LDO linear regulator in a SOT-23-5 package. Finding a substitute requires careful matching of its fixed output voltage, wide input range, and pin configuration.

AI replacement insight

Electrical riskhigh

Candidates have different output voltage or much lower input voltage ratings.

Package riskmedium

Package is the same, but pinout must be verified to avoid damage.

Can it be replaced directly?

No direct, drop-in replacement has been identified. All viable candidates have significant electrical differences requiring engineering review.

Best replacement path

Parametric alternative with review

Main risk

The primary risk is electrical incompatibility, specifically the output voltage and maximum input voltage, which differ in all candidates.

Recommended alternatives

Alternative in same package with higher current, but different output voltage (3.6V) and lower input voltage rating.

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Alternative comparison matrix

Feature / factor	ME6119C40M5G	SSP7603P36M5R	RY6050-ADJM5R	Compatibility / risk
Voltage	18V	15V	max ~8V	15V / max ~8V — Lower max input voltage.; RY6050-ADJM5R: Significantly lower max input voltage.
Current	400mA	500mA	500mA	500mA — Higher output current capability.; RY6050-ADJM5R: Higher output current capability.
Temperature	-40°C to 125°C	-40°C to 85°C	-	-40°C to 85°C — Narrower operating temperature range.
Package	SOT-23-5	SOT23-5	SOT-23-5	SOT23-5 / SOT-23-5 — Package matches, pinout requires verification.; RY6050-ADJM5R: Package matches, pinout requires verification.

Application & sourcing insights

Questions & answers

No direct drop-in replacement is available. Alternatives like SSP7603P36M5R have a different output voltage (3.6V) and require careful review of system voltage tolerances and input range.