Nexperia USA Inc. PMEG4010ET,215

Overview

PMEG4010ET,215 from Nexperia is a planar Schottky barrier rectifier in SOT23 package with 40 V reverse voltage rating, 1 A forward current capability, and ultra-low 540–640 mV forward voltage at 1 A - enabling high-efficiency low-voltage DC-to-DC conversion in space-constrained power rails.

For engineers reviewing the PMEG4010ET,215 datasheet, PMEG4010ET,215 pinout, PMEG4010ET,215 application, or PMEG4010ET,215 equivalent, key selection criteria include its 30–100 µA reverse leakage at 40 V, 43–50 pF junction capacitance, thermal resistance to ambient (440 K/W), guard-ring-enhanced stress protection, and n.c. terminal for optimized layout routing in compact SMPS designs.

Technical Context

This Schottky diode uses a planar silicon structure with integrated guard ring to suppress edge breakdown and improve reliability under transient stress. Its low VF stems from optimized metal–semiconductor interface design, not platinum silicide or barrier height tuning.

It operates within −65 °C to 150 °C junction temperature range and exhibits strong thermal dependence: VF drops ~2 mV/°C while IR rises exponentially above 25 °C - requiring derating in high-ambient environments like enclosed industrial power modules.

Key Specifications

Pinout & Package

Encapsulated in SOT23 (TO-236AB) plastic SMD package: 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch, 3-terminal configuration with exposed cathode pad for thermal relief.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NSS40100MZ4T1G and SS14-E3/57T, PMEG4010ET,215 delivers the lowest guaranteed VF at 1 A and tightest IR distribution - making it optimal for thermally constrained, battery-sensitive, and high-volume consumer power supplies where SOT23 footprint is fixed.

Availability

PMEG4010ET,215 is available at Aetrix Electronics and suitable for USB PD adapters, IoT sensor nodes, industrial PLC I/O modules, and white LED backlight drivers requiring stable component supply and consistent parametric performance across production batches.

Supply support for PMEG4010ET,215 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, with leadership in advanced packaging and automotive-grade qualification.

The PMEG4010ET,215 belongs to Nexperia's low-VF Schottky rectifier product line, engineered specifically for efficiency-critical, space-constrained DC-DC conversion in industrial, computing, and consumer power systems - not automotive applications.

FAQ

Is PMEG4010ET,215 qualified for automotive applications?

No. Per Nexperia's revision history and legal disclaimers, PMEG4010ET,215 is explicitly designated as non-automotive qualified. It lacks AEC-Q101 stress testing and is not warranted for use in safety-critical vehicle systems. Automotive alternatives require separate part numbers ending in "-Q" (e.g., PMEG4010EQ). Use only in industrial, consumer, or computing applications.

What is the function of Pin 2 (n.c.) and can it be grounded?

Pin 2 is internally not connected - no bond wire or die connection exists. Grounding or routing it provides no electrical benefit and risks solder bridging or mechanical stress on the fine-pitch SOT23 lead. The datasheet mandates leaving it floating; doing otherwise violates the specified mounting and reliability conditions.

How does thermal resistance change with PCB copper area?

Rth(j-a) is 440 K/W with standard FR4 footprint (no extra copper), but improves to 300 K/W when the cathode pad is extended to 1 cm² of single-sided copper. This 32% reduction enables full 1 A operation at 55 °C ambient instead of derating to 0.7 A - verified in Table 6 under condition [2].

Can PMEG4010ET,215 replace a standard 1N5819 in existing designs?

Yes - electrically and mechanically. Both are 40 V/1 A Schottkys in SOT23, but PMEG4010ET,215 offers lower VF (540–640 mV vs. 450–600 mV typ. for 1N5819) and tighter IR control. No layout changes needed; however, verify that the lower VF does not cause unexpected current sharing in parallel configurations due to forward bias mismatch.