Nexperia USA Inc. PMEG4002EL,315

Overview

PMEG4002EL from Nexperia is a 40 V, 0.2 A low forward-voltage Schottky barrier rectifier in a DFN1006-2 (SOD882) leadless ultra-small SMD package, featuring an integrated guard ring for stress protection. It delivers VF = 520–600 mV at IF = 200 mA and IR ≤ 10 µA at VR = 40 V, enabling efficient low-power rectification and voltage clamping in space-constrained portable electronics.

For engineers reviewing the PMEG4002EL datasheet, PMEG4002EL pinout, PMEG4002EL application, or PMEG4002EL equivalent, key selection criteria include its ultra-low VF at low currents (250–360 mV at 1–10 mA), 14–20 pF diode capacitance at 1 V, thermal resistance of 500 K/W in free air, and compatibility with reflow soldering on FR4 PCBs using standardized SOD882 footprints.

Technical Context

This Schottky rectifier uses a planar MEGA (Maximum Efficiency General Application) structure with integrated guard ring to suppress edge breakdown and improve reliability under transient stress. Its low VF stems from optimized metal-semiconductor junction design, not process scaling alone.

Thermal behavior is governed by junction-to-ambient resistance (Rth(j-a) = 500 K/W) under standard mounting, and reverse leakage (IR) rises significantly with temperature-reaching up to 0.7 µA at 25 °C and ~10 µA at 150 °C-requiring thermal-aware layout in high-temperature environments.

Key Specifications

Pinout & Package

Encapsulated in a DFN1006-2 (SOD882) leadless ultra-small plastic package measuring 1.0 mm × 0.6 mm × 0.48 mm with 0.65 mm pitch; 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 RB521S-40T1G and NSR0240HT1G, PMEG4002EL offers the lowest IR at full-rated VR and optimal Cd/VF balance for space-constrained, low-leakage, high-frequency use cases-making it preferred for battery-backed IoT and wearable power management.

Availability

PMEG4002EL is available at Aetrix Electronics and suitable for USB power path protection, low-voltage DC-DC output clamping, and IoT sensor node battery isolation requiring stable component supply and long-lifecycle availability.

Supply support for PMEG4002EL 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 delivering high-performance logic, discrete, and MOSFET devices with focus on efficiency, reliability, and miniaturization for consumer, industrial, and communications markets.

PMEG4002EL belongs to Nexperia's MEGA Schottky rectifier product line, engineered specifically for ultra-low VF and ultra-small form factor in portable and battery-sensitive applications where board space and standby power are critical constraints.

FAQ

Is PMEG4002EL automotive qualified?

No. Per Nexperia's 2022 revision history, PMEG4002EL is explicitly designated as non-automotive qualified. It has not undergone AEC-Q101 stress testing or automotive-grade qualification. For automotive applications, Nexperia offers Q-qualified variants such as PMEG4002EL-Q, which must be selected separately and verified for temperature cycling, humidity, and vibration compliance.

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

At Tamb = 85 °C, the maximum continuous forward current is derated to approximately 140 mA. This is calculated using Rth(j-a) = 500 K/W and Tj(max) = 150 °C: ΔT = 65 K → Pdiss(max) = 65 K / 500 K/W = 130 mW. With VF ≈ 550 mV at 140 mA, power dissipation is ~77 mW - well within limit, confirming safe operation at that current level.

Can PMEG4002EL replace a standard silicon diode in 5 V rail protection?

Yes, but only where low VF and fast switching are beneficial. Unlike silicon diodes (VF ≈ 700–1100 mV), PMEG4002EL reduces forward drop by 200–500 mV, improving efficiency and reducing heat. However, its higher IR at elevated temperatures requires verification in high-ambient environments, and its lack of surge rating beyond IFSM = 3 A means external TVS may still be needed for lightning or EFT immunity.

Does the SOD882 package require solder paste volume adjustment versus SOT23?

Yes. The DFN1006-2 (SOD882) footprint uses two 0.3 mm × 0.9 mm solder pads with 0.65 mm pitch. Recommended stencil aperture is 0.25 mm × 0.8 mm per pad (75% area ratio) to prevent bridging and tombstoning. This differs from SOT23's three-pad layout and requires updated placement and reflow profile validation per IPC-7351B.