Is there a pin-compatible replacement for PMEG40T50EPX?

Yes, several parts like PMEG4050EP,115 share the same SOD-128 package and pinout. However, electrical parameters like forward voltage and operating temperature differ, so they are not drop-in replacements and require engineering review.

What risks should I check before replacing PMEG40T50EPX?

Key risks include differences in maximum operating temperature (Tj), forward voltage (Vf) which affects efficiency and heat, and average forward current (Io). Always verify these parameters against your application's requirements.

PMEG40T50EPX Alternatives, Datasheet & Cross Reference | Nexperia USA Inc.

PMEG40T50EPX is a 40V, 5A Trench Schottky rectifier in a SOD-128 package. Finding a direct drop-in replacement requires matching its low forward voltage, high current, and high temperature performance.

AI replacement insight

Electrical riskmedium

Forward voltage differences affect power loss and efficiency.

Package risklow

SOD-128 is a standard package with compatible footprints.

Sourcing risklow

Multiple parametric alternatives exist within the same manufacturer family.

Can it be replaced directly?

No direct drop-in replacement was found. The closest candidates have different thermal or current ratings that require engineering review.

Best replacement path

PMEG4050EP,115 is the closest option but requires verifying thermal design due to its lower 150°C temperature rating compared to the target's 175°C.

Main risk

The primary risk is thermal. The target part is rated for 175°C, while the closest alternatives are rated for 150°C, which could lead to failure in high-temperature applications.

Recommended alternatives

A parametric alternative in the same SOD-128 package with identical voltage/current ratings but a lower max operating temperature.

View details

Alternative comparison matrix

Feature / factor	PMEG40T50EPX	PMEG4050EP,115	PMEG6030EVPX	Compatibility / risk
Package	SOD-128	SOD-128	SOD-128	SOD-128 — Package matches.; PMEG6030EVPX: Package matches.
Voltage	40V	40V	60V	40V / 60V — Reverse voltage matches.; PMEG6030EVPX: Higher voltage rating is acceptable.
Current	5A	5A	3A	5A / 3A — Forward current matches.; PMEG6030EVPX: Lower current rating is a significant downgrade.
Forward Voltage	470mV @ 5A	490mV @ 5A	-	490mV @ 5A — Slightly higher Vf, may increase power loss.
Temperature	175°C	150°C	175°C	150°C / 175°C — Lower max operating temperature.; PMEG6030EVPX: Max operating temperature matches.

Application & sourcing insights

Questions & answers

PMEG4050EP,115 is a close parametric match with the same 40V/5A rating and package, but has a lower maximum temperature of 150°C. It requires thermal analysis before use.