Nexperia USA Inc. PBLS4002Y-QX

Overview

PBLS4002Y-QX from Nexperia is a dual-function automotive-qualified discrete load switch combining a 40 V PNP low-V_CEsat transistor (TR1) and a 50 V NPN resistor-equipped transistor (TR2) in a single SOT363 (TSSOP6) package. It delivers −500 mA collector current capability, 440–700 mΩ R_CEsat, and integrated bias resistors (R1 = 4.7 kΩ typ, R2/R1 = 1), enabling compact high-side switching for LED drivers and battery charging circuits.

For engineers reviewing the PBLS4002Y-QX datasheet, PBLS4002Y-QX pinout, PBLS4002Y-QX application, or PBLS4002Y-QX equivalent, this device serves as a space-saving, AEC-Q101-compliant alternative to discrete PNP+NPN+resistor combinations-particularly where low drive voltage (<1 V threshold), reduced BOM count, and thermal performance up to 150 °C junction temperature are critical.

Technical Context

The PBLS4002Y-QX integrates two independent transistors: TR1 operates as a high-current PNP switch with V_CEO = −40 V, I_Clim = −500 mA, and R_CEsat = 440–700 mΩ at −500 mA/−50 mA drive; TR2 is an NPN RET with V_CEO = 50 V, I_O = 100 mA, and factory-trimmed R1 (4.7 kΩ typ) and R2/R1 ratio (1.0 typ). Both share thermal coupling within the same die island but maintain electrically isolated terminals.

Its operation relies on direct base control for TR1 and resistor-limited input drive for TR2-eliminating external bias networks. The device supports pulsed operation (t_p ≤ 300 µs, duty ≤ 2%) for peak current handling and meets AEC-Q101 stress test requirements for automotive underhood environments including T_amb = −65 to +150 °C and T_j ≤ 150 °C.

Key Specifications

Pinout & Package

SOT363 (TSSOP6) plastic surface-mount package: 6-pin, 0.65 mm pitch, 2.1 × 1.25 × 0.95 mm body size, designed for reflow/wave soldering per IPC-7351 standards.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-transistor load switch applications.

Compared with NSV40201MR6T1G and DMN3028LSD-13, PBLS4002Y-QX uniquely delivers co-packaged bipolar switching plus resistor-equipped logic interface in an AEC-Q101 package-reducing board space, eliminating three external resistors, and guaranteeing matched thermal behavior across both channels.

Availability

PBLS4002Y-QX is available at Aetrix Electronics and suitable for automotive lighting systems, battery management subsystems, and portable diagnostic equipment requiring stable component supply, AEC-Q101 compliance, and compact dual-transistor integration.

Supply support for PBLS4002Y-QX 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.

PBLS4002Y-QX belongs to Nexperia's Automotive Bipolar Transistor family, engineered specifically for space-constrained, thermally demanding load-switching applications in vehicles-including infotainment, body electronics, and ADAS power domains.

FAQ

What is the maximum continuous current rating for the PNP transistor (TR1) in PBLS4002Y-QX?

The PNP transistor (TR1) has a limiting collector current (I_Clim) of −500 mA under specified thermal conditions (T_amb ≤ 25 °C, pulsed operation with t_p ≤ 300 µs and duty factor ≤ 0.02). Derating is required above 25 °C ambient per the R_th(j-a) = 416 K/W thermal resistance value.

Can PBLS4002Y-QX be used in high-side switch configurations with 12 V automotive batteries?

Yes-TR1's −40 V V_CEO rating exceeds typical 12 V automotive battery transients (up to −35 V load dump), and its −500 mA I_Clim supports common LED backlight and sensor supply loads. The integrated GND1 pin simplifies high-side grounding, and AEC-Q101 qualification ensures reliability under vibration and thermal cycling.

How does the resistor-equipped transistor (TR2) simplify interface design?

TR2 incorporates factory-trimmed R1 (4.7 kΩ typ) and R2/R1 (1.0 typ), allowing direct connection of 0–30 V logic signals to Pin 5 (I2) without external bias resistors. This enables clean, repeatable turn-on/off behavior for monitoring or control functions while reducing layout complexity and component count.

Is thermal performance affected when both transistors operate simultaneously?

Yes-the total power dissipation limit is 300 mW per device. Simultaneous operation increases junction temperature; designers must sum individual losses (P_TR1 = V_CEsat × I_C, P_TR2 = V_CEsat × I_O) and apply derating using R_th(j-a) = 416 K/W on FR4 PCB to ensure T_j ≤ 150 °C under worst-case ambient conditions.