Nexperia USA Inc. PMEG2020CPASX

Overview

PMEG2020CPASX from Nexperia is a dual common-cathode Schottky barrier rectifier in DFN2020D-3 (SOT1061D) package, rated for 20 V reverse voltage and 2 A average forward current per diode, with typical forward voltage of 385 mV at 2 A and reverse leakage of 380 µA at 20 V - used for low-voltage rectification and freewheeling in space-constrained DC-DC converters.

For engineers reviewing the PMEG2020CPASX datasheet, PMEG2020CPASX pinout, PMEG2020CPASX application, or PMEG2020CPASX equivalent, this page delivers verified electrical parameters, thermal performance on FR4 and ceramic PCBs, AEC-Q101 qualification status, side-pad solderability for AOI, and real-world use cases in battery chargers and LED backlighting.

Technical Context

This dual Schottky rectifier integrates an on-chip guard ring for mechanical and electrical stress protection and uses planar MEGA technology to minimize forward voltage while maintaining low reverse leakage. Its common-cathode configuration enables shared thermal path and compact layout in bidirectional or dual-output topologies.

The device operates with junction temperature up to 150 °C and features ultra-thin 0.65 mm profile, exposed cathode pad for thermal conduction, and side-wettable flanks compatible with automated optical inspection - critical for automotive and portable power designs requiring high reliability and miniaturization.

Key Specifications

Pinout & Package

DFN2020D-3 (SOT1061D) is an ultra-thin, leadless surface-mount package with three terminals: two anodes (A1, A2) and one common cathode (K), featuring exposed side pads for solder joint inspection and enhanced thermal transfer via the cathode pad.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual Schottky rectifier applications.

Compared with RB055LAM-40TR and SS22-AU, PMEG2020CPASX uniquely combines AEC-Q101 qualification, 0.65 mm profile, side-wettable flanks, and 12 K/W junction-to-solder-point thermal resistance - making it the only option for space-constrained, automotive-grade, AOI-verified dual Schottky rectification.

Availability

PMEG2020CPASX is available at Aetrix Electronics and suitable for battery chargers, LED backlight drivers, automotive infotainment power supplies, and industrial sensor nodes requiring stable component supply across extended temperature ranges and high-reliability manufacturing.

Supply support for PMEG2020CPASX includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert focused on essential semiconductors, delivering high-performance, reliable components for automotive, industrial, and consumer markets.

This device belongs to Nexperia's MEGA Schottky rectifier product line, engineered specifically for high-efficiency, low-profile power conversion in battery-powered and automotive electronics where thermal performance and manufacturability are critical.

FAQ

What is the maximum junction temperature and how does it affect derating?

The absolute maximum junction temperature is 150 °C. Derating depends on PCB construction: on FR4 with standard footprint, average forward current drops to 1.4 A at 80 °C ambient; with 1 cm² cathode pad, it sustains 2 A up to 100 °C ambient. Thermal resistance to solder point (12 K/W) enables precise thermal modeling using measured solder point temperature.

Is PMEG2020CPASX suitable for reverse polarity protection in 5 V systems?

Yes - with 20 V VR rating and 385 mV VF at 2 A, it blocks reverse input while adding minimal voltage drop in forward conduction. Its 380 µA IR at 20 V ensures negligible standby loss, and AEC-Q101 qualification guarantees robustness against load dump and jump-start transients in automotive 5 V domains.

How does the DFN2020D-3 package support automated optical inspection?

The package features side-wettable flanks - solderable metal surfaces along the long edges of pins 1 and 2 - enabling camera-based AOI systems to inspect solder fillet formation and wetting quality without X-ray. This eliminates manual inspection and increases first-pass yield in high-volume mobile and automotive assembly lines.

Can both diodes be operated simultaneously at full 2 A each?

No - the 2 A rating applies per diode under specified thermal conditions (Tsp ≤ 140 °C), but total power dissipation must stay within Ptot limits. With both diodes conducting 2 A, VF ≈ 0.385 V yields ~1.54 W total loss; on FR4 with 1 cm² cathode pad, Rth(j-a) is ~130 K/W, resulting in ΔT ≈ 200 °C - exceeding 150 °C junction limit. Simultaneous full-load operation requires active cooling or derating.