Nexperia USA Inc. PMPB43XPEAX

Overview

PMPB43XPEA from Nexperia is a 20 V, P-channel enhancement-mode Trench MOSFET in DFN2020MD-6 (SOT1220) package, designed for high-side load switching and relay driving with R_DS(on) = 39 mΩ @ V_GS = −4.5 V, I_D = −5 A, and AEC-Q101 qualification for automotive use.

For engineers reviewing the PMPB43XPEA datasheet, PMPB43XPEA pinout, PMPB43XPEA application, or PMPB43XPEA equivalent, this device supports compact high-efficiency power control in space-constrained PCB layouts requiring low-threshold gate drive, side-wettable flanks for solder inspection, and robust ESD protection (>1 kV HBM).

Technical Context

This P-channel MOSFET uses Trench technology to achieve low on-resistance and fast switching (t_d(on) = 9 ns, t_f = 25 ns) with gate threshold voltage V_GS(th) ranging from −0.4 V to −1.0 V at 25 °C, enabling direct interface with 1.8 V/2.5 V logic controllers.

Its thermal design targets FR4 PCBs with 6 cm² drain pad, delivering 1.7 W continuous power dissipation at ambient temperature and junction-to-solder-point thermal resistance of 5–10 K/W - optimized for thermally demanding automotive and industrial load-switching nodes.

Key Specifications

Pinout & Package

DFN2020MD-6 (SOT1220) is a 2.0 × 2.0 mm, 0.65 mm profile, leadless thermal-enhanced package with side-wettable flanks for automated optical solder inspection. The exposed drain terminals provide low thermal resistance (R_th(j-sp) = 5–10 K/W) and high-current capability.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar P-channel load switch applications.

Compared with DMG2305UVT-7 and SI2301DDS-T1-BE3, PMPB43XPEA delivers superior thermal performance (5–10 K/W vs. >150 K/W), automotive qualification, and optical inspectability - making it the preferred choice for safety-critical and high-reliability load switching.

Availability

PMPB43XPEA is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC output stages, USB-C power delivery load switching, and smart home hub power management requiring stable component supply across multi-year production cycles.

Supply support for PMPB43XPEA 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 - including MOSFETs, logic, bipolar transistors, and ESD protection devices.

PMPB43XPEA belongs to Nexperia's Automotive Qualified TrenchMOS portfolio, engineered specifically for robust, space-efficient high-side switching in harsh-environment automotive and industrial power systems.

FAQ

What is the maximum continuous drain current for PMPB43XPEA at 100 °C ambient temperature?

The maximum continuous drain current is −3.1 A at T_amb = 100 °C with device mounted on an FR4 PCB having a 6 cm² drain pad. This derating reflects thermal limits imposed by junction-to-ambient resistance (235–270 K/W) and ensures T_j remains ≤150 °C under steady-state operation.

Does PMPB43XPEA require a gate resistor for stable switching?

A gate resistor is recommended to dampen ringing and control dV/dt, especially in high-noise environments. With 5.6 Ω intrinsic gate resistance and 15.6 nC total gate charge, a 10–22 Ω external resistor typically achieves optimal trade-off between switching speed and EMI suppression for 100 kHz–1 MHz applications.

Can PMPB43XPEA be used in reverse polarity protection circuits?

Yes - its P-channel configuration and −20 V V_DS rating make it suitable for reverse polarity protection on 12 V or 24 V inputs. When placed in the high-side position with gate tied to input, it blocks reverse current while conducting forward current with minimal voltage drop (≤250 mV @ 5 A).

Is the DFN2020MD-6 package compatible with standard reflow profiles?

Yes - the DFN2020MD-6 package is qualified for lead-free reflow per JEDEC J-STD-020. Recommended peak temperature is 260 °C for ≤30 seconds, with ramp rates ≤3 °C/s. The footprint in Figure 19 (sot1220_fr) must be followed precisely to ensure solder joint integrity and thermal performance.