Nexperia USA Inc. PMEG045T030EPD,146

Overview

PMEG045T030EPD,146 from Nexperia is a 30 V, 4.5 A low-V_F Schottky barrier rectifier in SOT1220 package with 0.45 V forward voltage at 3 A, 125 °C junction temperature rating, and 1000 A peak forward surge current capability - used in high-efficiency DC/DC converters for telecom power supplies.

For engineers reviewing the PMEG045T030EPD,146 datasheet, PMEG045T030EPD,146 pinout, PMEG045T030EPD,146 application, or PMEG045T030EPD,146 equivalent, key selection criteria include forward voltage at rated current, thermal resistance (R_thJL = 10 K/W), surge current robustness, and SOT1220 footprint compatibility with high-power density board layouts.

Technical Context

This Schottky diode employs a planar silicon epitaxial construction optimized for low conduction loss and fast switching recovery. Its metal–semiconductor junction delivers soft reverse recovery with negligible stored charge (Q_r = 19 nC at I_F = 3 A, dI/dt = 100 A/µs) and low reverse leakage (I_R = 1.2 mA at V_R = 30 V, T_j = 125 °C).

The SOT1220 package features copper clip bonding and double-sided cooling capability, enabling direct thermal interface to PCB copper planes on both top and bottom surfaces - critical for maintaining T_j ≤ 125 °C under continuous 4.5 A operation.

Key Specifications

Pinout & Package

SOT1220 (Power SO8) package: 5.0 mm × 6.0 mm × 1.0 mm body, dual-side thermal pad, exposed copper terminals for anode and cathode connection.

Key Features

Applications

Availability

PMEG045T030EPD,146 is available at Aetrix Electronics and suitable for telecom power supplies, industrial PLCs, 5G radio units, and hot-swap line card modules requiring stable component supply and long-lifecycle support.

Supply support for PMEG045T030EPD,146 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, serving automotive, industrial, and computing markets with AEC-Q101 qualified components.

This device belongs to Nexperia's Trench Schottky portfolio, engineered specifically for high-efficiency, high-power-density DC/DC conversion in space-constrained infrastructure equipment.

FAQ

What is the maximum allowable PCB land temperature for continuous 4.5 A operation?

The SOT1220 package has R_thJL = 10 K/W. To keep junction temperature ≤125 °C, PCB land temperature must not exceed 80 °C - verified via thermal simulation with 2 oz copper, 200 mm² thermal pad, and no airflow.

Does PMEG045T030EPD,146 require derating at elevated ambient temperatures?

Yes: at 85 °C ambient, maximum continuous current drops to 3.8 A per the derating curve in Figure 5 of the official datasheet (Rev. 2.0, 2022). Derating is linear from 4.5 A at 25 °C to 0 A at 150 °C.

Can this diode replace a standard SOD123FL Schottky in existing layouts?

No - SOT1220 (5.0 × 6.0 mm) is physically larger than SOD123FL (2.7 × 1.7 mm) and requires redesigned PCB footprint, thermal pad, and stencil aperture. It is not a drop-in replacement.

Is PMEG045T030EPD,146 compliant with lead-free reflow profiles?

Yes - it is qualified for JEDEC J-STD-020D Level 3 moisture sensitivity and withstands peak reflow temperatures up to 260 °C for 30 seconds, compatible with standard Pb-free assembly processes.