Nexperia USA Inc. PMEG4005EJ,115

Overview

PMEG4005EJ from Nexperia is a 40 V, 0.5 A planar MEGA Schottky barrier rectifier in SOD323F (SC-90) package, featuring 420–470 mV forward voltage at 500 mA, 7 µA typical reverse leakage at 10 V, and 43–50 pF junction capacitance at 1 V - optimized for low-loss DC-to-DC conversion and reverse polarity protection in space-constrained power rails.

For engineers reviewing the PMEG4005EJ datasheet, PMEG4005EJ pinout, PMEG4005EJ application, or PMEG4005EJ equivalent, key selection criteria include forward voltage drop under pulsed 500 mA load, thermal resistance to solder point (55 K/W), cathode-marked SOD323F footprint compatibility, and non-automotive qualification status per revision history.

Technical Context

This Schottky rectifier uses a planar die structure with integrated guard ring for ESD and surge stress protection. Its low VF stems from optimized metal-semiconductor interface and thin epitaxial layer, enabling high conduction efficiency without minority-carrier storage delay.

Thermal design requires attention to R_th(j-sp) = 55 K/W on 1 cm² cathode pad, as reverse leakage increases significantly above 85 °C ambient - making it suitable for thermally managed low-power converters but not high-temperature automotive environments per datasheet revision notice.

Key Specifications

Pinout & Package

SOD323F (SC-90) surface-mount plastic package with flat leads, 1.7 mm × 1.25 mm body size, and 0.7 mm height. Cathode identified by marking bar on top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with RB520S-40T1G and SS14, PMEG4005EJ delivers optimal balance of low VF, compact SOD323F footprint, and verified 0.5 A pulsed capability - making it preferred for space-limited 3.3/5 V DC-DC outputs where thermal pad integration is feasible.

Availability

PMEG4005EJ is available at Aetrix Electronics and suitable for USB power delivery input protection, low-voltage IoT sensor rails, and industrial 24 V DC-DC converters requiring stable component supply with consistent SOD323F packaging and traceable lot control.

Supply support for PMEG4005EJ 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 high-volume logic, discrete, and MOSFET devices, delivering reliable, efficient, and scalable components for consumer, industrial, and communications markets.

This device belongs to Nexperia's MEGA Schottky rectifier product line, engineered specifically for ultra-low forward voltage and high reliability in compact power conversion stages - targeting efficiency-critical, space-constrained applications below 40 V.

FAQ

Is PMEG4005EJ qualified for automotive applications?

No. Per revision history v.3 (2022), PMEG4005EJ is explicitly designated as non-automotive qualified. It lacks AEC-Q101 testing and automotive-grade process controls. For automotive use, Nexperia recommends the -Q qualified variants such as PMEG4005EJ-Q, which undergo extended temperature cycling and humidity testing.

What is the maximum continuous forward current at 85 °C ambient?

At Tamb = 85 °C, the maximum continuous forward current is derated to approximately 0.32 A. This is calculated using the 0.5 A rating at Tsp ≤ 55 °C and R_th(j-sp) = 55 K/W, assuming 150 °C max junction temperature and 1 cm² cathode copper pad - exceeding this causes irreversible thermal runaway due to Schottky's positive temperature coefficient of VF.

Does the marking 'CE' correspond to the full part number?

Yes. Per Table 4 of the datasheet, 'CE' is the official top-side marking for PMEG4005EJ. The cathode is indicated by a bar adjacent to pin 1, and no additional date or lot codes are included in the standard marking - simplifying automated optical inspection in high-speed assembly lines.

Can PMEG4005EJ replace a standard 1N5817 in a 5 V supply?

Yes, with caveats. PMEG4005EJ offers lower VF (420 mV vs. 450–600 mV) and smaller footprint, but its 0.5 A absolute max rating is lower than 1N5817's 1 A. It is suitable for 5 V supplies drawing ≤500 mA, provided thermal design accommodates the SOD323F package - unlike through-hole 1N5817, it requires proper PCB copper thermal relief.