Nexperia USA Inc. PHPT60406NYX

Overview

PHPT60406NYX from Nexperia is a 40 V, 6 A NPN high-power bipolar transistor in LFPAK56 (SOT669) package, designed for linear-mode voltage regulation, load switching, and automotive-grade power management. It delivers R_CE(sat) = 45–60 mΩ at I_C = 6 A / I_B = 600 mA, supports continuous operation up to T_j = 175 °C, and is AEC-Q101 qualified for under-hood applications.

For engineers reviewing the PHPT60406NYX datasheet, PHPT60406NYX pinout, PHPT60406NYX application, or PHPT60406NYX equivalent, this device serves as a thermally robust, high-current discrete switch with validated performance in motor drive, relay replacement, and backlighting circuits where low saturation resistance and high ambient temperature tolerance are critical.

Technical Context

This NPN bipolar transistor operates in linear or saturated switching mode with DC current gain (h_FE) of 60–95 at I_C = 6 A and V_CE = 2 V. Its thermal design leverages the LFPAK56's exposed mounting base (R_th(j-mb) = 6 K/W), enabling 25 W power dissipation when mounted to a heatsink.

Switching behavior is characterized by t_on = 105 ns and t_off = 575 ns under V_CC = 12.5 V, I_C = 3 A, and ±0.15 A base drive. The device exhibits f_T = 153 MHz and C_c = 41 pF, supporting moderate-frequency control loops in analog power stages.

Key Specifications

Pinout & Package

PHPT60406NYX uses the LFPAK56 (SOT669) surface-mount plastic package with an exposed metal mounting base for thermal and electrical connection to the collector. Dimensions: 4.41 × 3.62 × 1.20 mm (L × W × H), with 4 terminals and standardized reflow footprint per Figure 15.

Key Features

Applications

Equivalent & Alternatives

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

Compared with PHPT60406NYX, PHPT60406PY provides matched thermal and electrical specs in PNP form for complementary designs, while BUK9Y4R5-40E offers far lower on-resistance but lacks linear-mode SOA and bipolar drive simplicity-making PHPT60406NYX optimal for analog power control where precision, thermal margin, and base-driven simplicity are prioritized.

Availability

PHPT60406NYX is available at Aetrix Electronics and suitable for automotive load switching, linear voltage regulation, and motor drive applications requiring stable component supply, AEC-Q101 compliance, and high-temperature reliability.

Supply support for PHPT60406NYX 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.

PHPT60406NYX belongs to Nexperia's LFPAK high-power bipolar transistor family, engineered specifically for thermally demanding automotive and industrial power management where robustness, compact size, and AEC-Q101 validation are mandatory.

FAQ

What is the maximum continuous collector current for PHPT60406NYX at 100 °C ambient?

At T_amb = 100 °C with standard FR4 PCB mounting (6 cm² collector pad), PHPT60406NYX supports 4.2 A continuous collector current, derived from its 25 W P_tot rating and thermal derating curve in Figure 1. This assumes proper copper pour and airflow; actual current depends on layout and heatsinking.

Can PHPT60406NYX be used in linear regulator mode with 24 V input and 5 V/4 A output?

Yes - with 19 V dropout and 4 A load, power dissipation is 76 W, exceeding its 25 W rating. However, with active heatsinking reducing R_th(j-a) to ≤10 K/W, junction temperature remains within 175 °C. Use only with verified thermal design and SOA compliance per Figure 5.

Is the mounting base electrically isolated from other terminals?

No - the mounting base is internally connected to the collector terminal. It must be electrically tied to the collector net and thermally bonded to a copper pour or heatsink. Isolation requires insulating thermal interface material and careful layout to avoid shorting to adjacent ground or emitter traces.

What base drive current is required to achieve full saturation at 6 A collector current?

600 mA base current is specified for R_CE(sat) = 45–60 mΩ at I_C = 6 A (pulsed, δ ≤ 0.02). For DC operation, apply ≥600 mA with appropriate current-limiting resistor and ensure base driver can sustain 0.6 A continuously without thermal shutdown or voltage droop.