Nexperia USA Inc. PMEG040V030EPEZ

Overview

PMEG040V030EPEZ from Nexperia is a 40 V, 3 A planar low forward voltage Schottky barrier rectifier in a CFP15B (SOT1289B) surface-mount package, designed for high-efficiency DC-to-DC conversion and low-voltage freewheeling applications where minimal conduction loss and thermal performance are critical.

For engineers reviewing the PMEG040V030EPEZ datasheet, PMEG040V030EPEZ pinout, PMEG040V030EPEZ application, or PMEG040V030EPEZ equivalent, key selection criteria include its 425 mV typical VF at 3 A, 120 µA max IR at 40 V, clip-bond thermal enhancement, dual-anode configuration, and SMT-compatible ultra-thin 0.95 mm profile.

Technical Context

This Schottky rectifier uses planar die construction with clip-bond interconnection to minimize parasitic resistance and improve thermal transfer from junction to solder point. Its low VF stems from optimized metal-semiconductor interface design, enabling efficient operation below 1 V across the full 3 A rated current range.

The device exhibits negligible reverse recovery (trr ≤ 12 ns), eliminating switching losses in high-frequency SMPS topologies. Its cathode-tab thermal path delivers Rth(j–sp) = 3 K/W when mounted on a 1 cm² copper pad - a critical advantage over standard SMD diodes in thermally constrained power stages.

Key Specifications

Pinout & Package

Encapsulated in the CFP15B (SOT1289B) thermal-enhanced ultra-thin SMD package, this device features a copper clip-bonded cathode tab for low-inductance, high-current routing and superior thermal dissipation via the exposed cathode terminal.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-3EYH04-M3/54 and NSR340HT1G, PMEG040V030EPEZ delivers superior thermal performance (3 K/W vs. ≥12 K/W), lowest VF in class, and ultra-thin 0.95 mm profile - making it optimal for high-density, high-efficiency power stages where thermal headroom and board space are limiting factors.

Availability

PMEG040V030EPEZ is available at Aetrix Electronics and suitable for high-efficiency DC-to-DC conversion, reverse polarity protection, and OR-ing circuits requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for PMEG040V030EPEZ 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 essential semiconductors - delivering discrete, logic, and MOSFET solutions engineered for automotive, industrial, and computing applications.

This device belongs to Nexperia's Planar Low VF Schottky rectifier product line, developed specifically for high-frequency, high-efficiency power conversion where minimal forward voltage and robust thermal performance are mandatory.

FAQ

What is the maximum allowable ambient temperature for continuous 3 A operation?

At 3 A average forward current with δ = 0.5 duty cycle and 20 kHz frequency, the device sustains continuous operation up to 100 °C ambient on a standard FR4 PCB (Fig. 8), or up to 125 °C ambient when mounted with a 1 cm² cathode copper pad (Fig. 9). Exceeding these limits risks junction temperature exceeding 175 °C.

Can Pins 1 and 2 be used independently as separate anodes?

No - Pins 1 and 2 are internally shorted anode terminals. They are not isolated and must be routed as a single node on the PCB. Using them separately would violate internal construction and compromise current rating and thermal performance.

Is the cathode tab (Pin 3) electrically isolated from the PCB ground plane?

No - the cathode tab is the device's cathode terminal and must be connected to the circuit's negative return path. It is not insulated; soldering it to a grounded copper pour establishes both electrical connection and thermal interface. Isolation would disable device function.

Does this diode require a heatsink for 3 A operation?

No external heatsink is required. With a 1 cm² copper pad connected to Pin 3, the device achieves Rth(j–sp) = 3 K/W and maintains Tj ≤ 175 °C at 3 A. On standard FR4 (no enhanced pad), derating to 2.2 A is recommended for continuous operation at 25 °C ambient.