Nexperia USA Inc. PMEG4010CEGWX

Overview

PMEG4010CEGWX from Nexperia is a planar Schottky barrier rectifier with integrated guard ring for stress protection, rated at 40 V reverse voltage and 1 A average forward current, featuring low 490 mV typical forward voltage and 6 µA typical reverse leakage - deployed in low-voltage DC-DC converters and reverse polarity protection circuits.

For engineers reviewing the PMEG4010CEGWX datasheet, PMEG4010CEGWX pinout, PMEG4010CEGWX application, or PMEG4010CEGWX equivalent, key selection criteria include VF vs. IF trade-off at 25 °C and 150 °C, thermal resistance to solder point (185 K/W), SOD123 footprint compatibility, and non-automotive qualification status.

Technical Context

This Schottky diode uses a planar silicon structure with an integrated guard ring to suppress edge breakdown and improve surge robustness under repetitive peak forward current up to 7 A (tp ≤ 1 ms) and non-repetitive surges up to 9 A (tp = 8 ms). Its low VF stems from optimized metal–semiconductor interface design rather than barrier height reduction alone.

Thermal performance is defined relative to two mounting conditions: R_th(j-a) = 305 K/W on standard FR4 and 185 K/W with 1 cm² cathode pad - enabling accurate junction temperature estimation across ambient ranges from −55 °C to 150 °C and power dissipation up to 675 mW.

Key Specifications

Pinout & Package

Encapsulated in a compact SOD123 surface-mount plastic package (2.675 mm × 1.6 mm × 1.15 mm body), with cathode marked by a bar on the device top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NSR0140HT1G and SS14-E3/5AT, PMEG4010CEGWX delivers the lowest V_F and smallest footprint among 40 V/1 A Schottkys, while its guard ring and 6 µA I_R support tighter leakage budgets and higher surge immunity in compact industrial power supplies.

Availability

PMEG4010CEGWX is available at Aetrix Electronics and suitable for low-voltage rectification, high-efficiency DC-to-DC conversion, and reverse polarity protection requiring stable component supply and consistent SOD123 packaging.

Supply support for PMEG4010CEGWX 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, high-reliability discrete and logic devices, headquartered in Nijmegen, Netherlands, with manufacturing in Asia and Europe.

PMEG4010CEGWX belongs to Nexperia's low-VF Schottky rectifier product line, engineered specifically for efficiency-critical, space-constrained power conversion in industrial, computing, and consumer electronics - not automotive-qualified.

FAQ

Is PMEG4010CEGWX qualified for automotive applications?

No. Per Revision History v.2 (2023), this part was explicitly changed to non-automotive status. It lacks AEC-Q101 qualification, has no automotive-grade screening, and is not recommended for safety-critical or vehicle-mounted systems without full customer validation.

What is the maximum allowable PCB copper area for optimal thermal performance?

For R_th(j-sp) = 185 K/W, the datasheet specifies a 1 cm² tin-plated copper pad under the cathode terminal. Using smaller pads increases thermal resistance nonlinearly - e.g., 0.25 cm² raises R_th(j-sp) to ~280 K/W, limiting continuous current to ~650 mA at 70 °C ambient.

Can PMEG4010CEGWX replace a standard PN junction diode in a 5 V supply rail?

Yes, provided reverse voltage does not exceed 40 V and peak surge currents stay within 9 A (8 ms). Its lower V_F reduces conduction loss by ~300 mV versus a typical 1N4007, improving efficiency and reducing self-heating - but note its higher capacitance (69 pF vs. ~8 pF) may affect high-frequency noise filtering.

What does the marking code 'G6' indicate on the device body?

'G6' is the manufacturer-specific marking for PMEG4010CEGWX per Table 4. It is not a date code or lot identifier - it uniquely identifies this device variant within Nexperia's SOD123 Schottky family and confirms correct orientation (bar = cathode) during automated optical inspection.