Nexperia USA Inc. PSMN041-80YLX

Overview

PSMN041-80YL from Nexperia is an N-channel logic-level enhancement-mode MOSFET in LFPAK56 (SOT669) package, rated for 80 V V_DS, 41 mΩ R_DS(on) at V_GS = 10 V and T_j = 25 °C, with 25 A continuous drain current at T_mb = 25 °C. It serves as a high-efficiency power switch in DC-DC converters, load switching, and TV power supplies, featuring low conduction loss and full 175 °C junction temperature qualification.

For engineers reviewing the PSMN041-80YL datasheet, PSMN041-80YL pinout, PSMN041-80YL application, or PSMN041-80YL equivalent, key selection criteria include logic-level gate drive compatibility (V_GS(th) = 1.4–2.1 V), avalanche ruggedness (23.9 mJ), thermal resistance (R_th(j-mb) = 2.13 K/W), and LFPAK56 footprint compatibility with Power-SO8 designs.

Technical Context

This MOSFET employs a planar silicon process optimized for low R_DS(on) and fast switching, with gate threshold voltage tightly distributed (1.4–2.1 V at 25 °C) to ensure reliable turn-on with 3.3 V or 5 V logic controllers. Its LFPAK56 package integrates a thermally enhanced mounting base directly connected to the drain, enabling efficient heat transfer to PCB copper.

The device exhibits robust unclamped inductive switching capability (E_AS = 23.9 mJ at T_j(init) = 25 °C), supported by low Q_GD (4.3 nC) and moderate Q_G(tot) (21.9 nC), making it suitable for hard-switched topologies where gate drive strength and switching loss balance are critical.

Key Specifications

Pinout & Package

PSMN041-80YL uses the LFPAK56 (SOT669) surface-mount package: a 4-lead plastic single-ended package with exposed mounting base (drain-connected) for low-inductance, high-current routing and superior thermal performance. The package is footprint-compatible with Power-SO8 layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel logic-level MOSFET applications.

Compared with PSMN041-80YL, PSMN035-80YL trades marginal gate drive overhead for improved conduction efficiency, while IPB041N08N5 sacrifices thermal integration and footprint compatibility for higher voltage margin and legacy package familiarity - neither offers identical thermal-electrical trade-offs in compact, high-power-density designs.

Availability

PSMN041-80YL is available at Aetrix Electronics and suitable for DC-DC converters, load switch implementations, and TV power supplies requiring stable component supply, long-term industrial lifecycle support, and consistent parametric performance across production batches.

Supply support for PSMN041-80YL 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 MOSFETs, ESD protection, and logic ICs for industrial, automotive, and consumer markets.

The PSMN041-80YL belongs to Nexperia's logic-level Power MOSFET product line, engineered specifically for high-efficiency, thermally constrained power conversion in industrial and consumer equipment where gate drive simplicity and thermal robustness are critical.

FAQ

What is the maximum continuous drain current for PSMN041-80YL at 100 °C mounting base temperature?

At T_mb = 100 °C, the continuous drain current is derated to 18 A, as specified in Table 5 (Limiting Values). This value reflects thermal limits of the LFPAK56 package under real-world PCB thermal conditions and must be used for thermal design-not the 25 A rating at 25 °C.

Does PSMN041-80YL have integrated ESD protection on the gate?

No, PSMN041-80YL does not include integrated gate ESD protection diodes. Its gate oxide is rated for ±20 V absolute maximum V_GS, and external gate protection (e.g., Zener clamp or series resistor) is recommended in systems prone to handling or layout-induced transients.

Can PSMN041-80YL be used in synchronous rectification applications?

Yes - its low R_DS(on) (41 mΩ), fast body diode (t_rr = 21.3 ns, Q_r = 22 nC), and logic-level gate drive make it suitable for low-voltage synchronous rectification in buck or flyback topologies up to ~60 V output, provided gate timing avoids shoot-through.

Is the mounting base of PSMN041-80YL electrically isolated from other terminals?

No - the mounting base is internally connected to the drain terminal, as confirmed in Table 2 (Pinning information) and Figure 5 (package outline). It must be routed to the same net as drain and cannot serve as a floating thermal pad or ground reference.