Nexperia USA Inc. PMEG3030CERX

Overview

PMEG3030CERX from Nexperia is a planar Schottky barrier rectifier in CFP3 (SOD123W) surface-mount package, rated for 30 V reverse voltage and 3 A average forward current at T_sp ≤ 161 °C. It delivers low forward voltage (510–580 mV @ 3 A, 25 °C), ultra-low reverse recovery time (5.5 ns), and high thermal performance with R_th(j-sp) = 18 K/W - optimized for high-efficiency DC-DC converters and SMPS output rectification.

For engineers reviewing the PMEG3030CERX datasheet, PMEG3030CERX pinout, PMEG3030CERX application, or PMEG3030CERX equivalent, key selection criteria include forward voltage vs. temperature drift, reverse leakage at 125 °C (8–25 mA), junction-to-solder-point thermal resistance, and compatibility with standard SOD123W reflow footprints per IPC-7351.

Technical Context

This Schottky diode uses a planar metal-semiconductor junction architecture to eliminate minority-carrier storage delay, enabling true zero-recovery behavior and minimizing switching losses in high-frequency power stages. Its clip-bond construction enhances current handling and thermal transfer from the die to the cathode tab.

The device operates with a maximum junction temperature of 175 °C and supports pulsed forward currents up to 50 A (8.3 ms half-sine). Reverse breakdown voltage is guaranteed ≥30 V at I_R = 1 mA, and diode capacitance is 145 pF @ 1 V, 1 MHz - critical for EMI-sensitive buck converter outputs.

Key Specifications

Pinout & Package

Encapsulated in CFP3 (SOD123W) - a 2.6 mm × 1.7 mm × 1.0 mm surface-mount plastic package with flat leads and exposed cathode tab for enhanced thermal dissipation. Standard footprint matches IPC-7351 SOD123W land pattern.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NSS30300DZT1G and VSSAF3030-M3/5AT, PMEG3030CERX offers the lowest V_F and fastest t_rr in its class, with explicit R_th(j-sp) data enabling precise thermal design - making it optimal for high-density, high-frequency power supplies where efficiency and thermal margin are critical.

Availability

PMEG3030CERX is available at Aetrix Electronics and suitable for high-efficiency DC-DC converters, reverse polarity protection circuits, and low-power consumption AC-DC adapters requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for PMEG3030CERX 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, logic, and MOSFET solutions - serving automotive, industrial, mobile, and computing markets with scalable manufacturing and AEC-Q200 qualified products.

The PMEG3030CERX belongs to Nexperia's CFP3 Schottky rectifier family, engineered specifically for high-frequency, high-efficiency power conversion in space-constrained applications where thermal performance and low V_F are decisive.

FAQ

What is the maximum allowable solder point temperature for PMEG3030CERX during reflow?

The device supports peak reflow temperatures up to 260 °C for ≤30 seconds per J-STD-020, with solder point (T_sp) limited to 161 °C for continuous 3 A operation. Thermal design must ensure T_sp remains below this threshold under worst-case ambient and power dissipation conditions.

Does PMEG3030CERX require a heatsink for 3 A DC operation?

No external heatsink is required if mounted on an FR4 PCB with a 1 cm² cathode copper pad, which achieves R_th(j-sp) = 18 K/W. At 3 A and 510 mV V_F, power dissipation is ~1.53 W, resulting in ~27.5 °C temperature rise above solder point - well within the 175 °C max junction limit.

How does reverse leakage change from 25 °C to 125 °C?

Reverse leakage increases from 15–50 µA at 25 °C to 8–25 mA at 125 °C under 30 V bias - a ~500× increase. This must be accounted for in low-power standby modes, as it contributes directly to quiescent current and can dominate total system sleep current in battery-powered designs.

Can PMEG3030CERX replace a standard 1N5822 in existing designs?

Yes, with caveats: PMEG3030CERX (SOD123W) has identical pinout and electrical ratings to 1N5822 (DO-201AD), but its smaller footprint requires PCB land pattern revision. Its lower V_F and faster t_rr improve efficiency and EMI, but layout must accommodate the CFP3 thermal pad and tighter spacing.