Is there a pin-compatible replacement for PMEG4020ER,115?

PMEG6020ER,115 and PMEG6020ETR,115 use the same 2-pin SOD123W package and are expected to be pin-compatible. However, electrical differences mean they are not drop-in replacements and require engineering review.

What risks should I check before replacing PMEG4020ER,115?

When replacing PMEG4020ER,115, primarily check the forward voltage (VF) and reverse current (IR). Higher VF increases power loss, while higher IR can affect low-power modes or high-temperature stability.

PMEG4020ER,115 Alternatives, Datasheet & Cross Reference | Nexperia USA Inc.

PMEG4020ER,115 is a 40V, 2A Schottky rectifier in a SOD123W package. Several alternatives from the same Nexperia PMEG family exist, offering higher voltage ratings but requiring review of forward voltage and leakage current.

AI replacement insight

Electrical riskmedium

Differences in forward voltage (VF) and reverse current (IR) require engineering validation.

Package risklow

Viable candidates use the same SOD123W package, ensuring mechanical compatibility.

Sourcing risklow

Candidates are active parts from the same manufacturer, simplifying procurement.

Can it be replaced directly?

No exact drop-in replacement was found. PMEG6020ER,115 is a strong functional alternative that requires verification of its higher reverse leakage current.

Best replacement path

PMEG6020ER,115 is the most promising path, providing a voltage upgrade with minimal parametric trade-offs.

Main risk

The main risk is increased power dissipation from higher forward voltage (VF) or unexpected circuit behavior from higher reverse leakage current (IR) in some alternatives.

Recommended alternatives

A strong alternative in the same package with a higher voltage rating (60V), but slightly higher forward voltage and reverse current.

View details

Alternative comparison matrix

Feature / factor	PMEG4020ER,115	PMEG6020ER,115	PMEG6020ETR,115	Compatibility / risk
Package	SOD123W	SOD123W	SOD123W	SOD123W — Same package ensures form and fit compatibility.; PMEG6020ETR,115: Same package ensures form and fit compatibility.
Voltage	40V	60V	60V	60V — Higher voltage rating provides increased design margin.; PMEG6020ETR,115: Higher voltage rating provides increased design margin.
Current	2A	2A	2A	2A — Matches target's forward current capability.; PMEG6020ETR,115: Matches target's forward current capability.
Forward Voltage	430mV @ 2A	460mV @ 2A	530mV @ 2A	460mV @ 2A / 530mV @ 2A — Slightly higher VF increases power loss; review impact.; PMEG6020ETR,115: Significantly higher VF (~23%) will increase power dissipation.
Reverse Current	25µA @ 40V	60µA @ 60V	150µA @ 60V	60µA @ 60V / 150µA @ 60V — Higher leakage current may affect sensitive or low-power circuits.; PMEG6020ETR,115: Much higher leakage current requires careful review.
Temperature	150°C	-	175°C	175°C — Higher max junction temp provides better thermal robustness.

Application & sourcing insights

Questions & answers

PMEG6020ER,115 is a strong candidate, offering a higher 60V rating in the same package with very similar performance. However, its slightly higher reverse leakage current should be verified for your application.