Nexperia USA Inc. PHPT60406PYX

Overview

PHPT60406PYX from Nexperia is a PNP high-power bipolar transistor in LFPAK56 (SOT669) package, rated for −40 V V_CEO, −6 A continuous collector current, and 25 W power dissipation on FR4 PCB with optimized mounting pad. It delivers 58 mΩ typical R_CE(sat) at −6 A/−600 mA drive and is AEC-Q101 qualified for automotive under-hood use in load switching and linear regulation.

For engineers reviewing the PHPT60406PYX datasheet, PHPT60406PYX pinout, PHPT60406PYX application, or PHPT60406PYX equivalent, key selection criteria include thermal resistance to mounting base (6 K/W), junction temperature rating up to 175 °C, low saturation voltage (−350 mV typ. at −6 A), and compatibility with standard Power-SO8 footprint reflow profiles.

Technical Context

This device operates as a high-current PNP switch with DC current gain (h_FE) of 50–90 at −6 A/−2 V, enabling robust base-driven control in linear and saturated modes. Its thermal design targets high-temperature ambient operation (−55 °C to +175 °C) and supports pulsed peak currents up to −12 A with 1 ms duty cycle.

The LFPAK56 package integrates an exposed collector mounting base for direct thermal coupling, achieving 6 K/W R_th(j-mb). Electrical behavior is characterized across temperature (−55 °C to +175 °C), with V_BE(sat) ranging from −1.05 V to −1.2 V and V_CE(sat) from −350 mV to −540 mV under specified pulsed conditions.

Key Specifications

Pinout & Package

PHPT60406PYX uses the SOT669 (LFPAK56) package: a 4-lead surface-mount power plastic package with an exposed collector mounting base (mb) and three emitter terminals (Pins 1–3) sharing common internal connection. The base is on Pin 4.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP high-power switching applications.

Compared with PHPT60406NY, PHPT60406PYX provides native high-side control without gate drivers or level shifters; compared with PMST2907A, it delivers 10× higher current, 40× higher power dissipation, and automotive-grade qualification-making it the sole viable option for ruggedized 6 A PNP switching.

Availability

PHPT60406PYX is available at Aetrix Electronics and suitable for automotive load switching, industrial linear regulators, motor drive circuits, and relay-replacement designs requiring stable component supply across multi-year production cycles.

Supply support for PHPT60406PYX 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 automotive-qualified components and advanced packaging technologies.

PHPT60406PYX belongs to Nexperia's LFPAK56 high-power bipolar transistor family, engineered specifically for space-constrained, thermally demanding automotive and industrial power control applications where DPAK alternatives are too large or inefficient.

FAQ

What is the maximum continuous collector current for PHPT60406PYX at 100 °C ambient?

At T_amb = 100 °C, the maximum continuous collector current is derated to approximately −3.5 A based on the FR4 PCB power derating curve (Figure 1, curve [2]). This reflects thermal limits when mounted on a 6 cm² collector pad; actual value depends on PCB copper area and airflow.

Can PHPT60406PYX be used in parallel for higher current handling?

Yes-its three parallel emitter terminals and matched R_CE(sat) tolerance support paralleling with current-sharing resistors. However, thermal coupling between devices must be balanced, and base drive must be individually matched to avoid current hogging; Nexperia recommends verifying SOA under combined load conditions.

Is the mounting base (mb) electrically isolated from the PCB ground plane?

No-the mounting base is internally connected to the collector and must be electrically tied to the collector net. It is not isolated; therefore, the PCB copper area it contacts must be routed to the collector potential, not ground, unless the circuit topology explicitly references collector to ground.

Does PHPT60406PYX require a base resistor when driven directly from a 3.3 V MCU GPIO?

Yes-a series base resistor is required to limit IB to ≤−600 mA. With V_BE(on) ≈ −0.7 V at −0.5 A, a 4.7 Ω resistor limits base current to ~550 mA when driven from 3.3 V, ensuring reliable saturation while avoiding excessive base drive loss or GPIO damage.