Nexperia USA Inc. PBLS4003Y,115

Overview

PBLS4003Y,115 from NXP Semiconductors is a dual-function monolithic discrete device integrating a PNP low-V_CEsat Breakthrough In Small Signal (BISS) transistor and an NPN Resistor-Equipped Transistor (RET) in a single SOT363 (SC-88) package. It delivers −40 V V_CEO, −500 mA I_C for the PNP switch and 50 V/100 mA capability for the NPN RET, with R_CEsat = 440–700 mΩ at −500 mA and integrated bias resistors (R1 = 10 kΩ, R2/R1 = 1). It serves as a compact high-side load switch in portable battery-powered systems.

For engineers reviewing the PBLS4003Y,115 datasheet, PBLS4003Y,115 pinout, PBLS4003Y,115 application, or PBLS4003Y,115 equivalent, key selection criteria include verified dual-transistor integration, confirmed −350 mV V_CEsat at −500 mA/−50 mA drive, validated 6-pin SOT363 pin mapping, and documented use in LED backlight and battery charger switching circuits.

Technical Context

This device implements two independent transistor functions on one die: TR1 is a PNP BISS transistor optimized for low-saturation-voltage switching with h_FE = 40 at −500 mA and V_BEsat = −1.2 V; TR2 is an NPN RET with built-in R1 = 10 kΩ input resistor and R2/R1 = 1 ratio, enabling direct logic-level control without external biasing. Both share thermal coupling but operate electrically isolated.

The PNP section supports high-side switching up to −40 V with <1 V threshold relative to MOSFET alternatives, while the NPN RET provides 100 mA output current with VI(on) = 1.8–2.5 V and VI(off) = 0.8–1.1 V, ensuring robust TTL/CMOS compatibility. Thermal resistance R_th(j-a) is 416 K/W on FR4 PCB.

Key Specifications

Pinout & Package

Package: SOT363 (SC-88), 6-lead plastic surface-mounted package, 2.2 mm × 1.35 mm footprint, 0.65 mm pitch, pin 1 marked by index notch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NSBC114YTW and DMN3029LSD, PBLS4003Y,115 uniquely integrates complementary high-side (PNP BISS) and low-side (NPN RET) functions with matched biasing in one package-enabling true dual-rail control without external components or driver overhead.

Availability

PBLS4003Y,115 is available at Aetrix Electronics and suitable for portable equipment power rail control, LED backlight switching, and battery charger enable path applications requiring stable component supply, consistent marking (S3*), and long-term industrial availability.

Supply support for PBLS4003Y,115 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

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer applications.

PBLS4003Y,115 belongs to NXP's BISS+RET family designed specifically for space-constrained, battery-sensitive portable electronics-emphasizing ultra-low saturation voltage, integrated biasing, and dual-function consolidation to replace multiple discrete devices.

FAQ

What is the maximum continuous collector current for the PNP transistor (TR1) in PBLS4003Y,115?

The PNP BISS transistor (TR1) supports −500 mA continuous collector current at T_amb ≤ 25 °C with derating above that temperature. Its peak pulse rating is −1 A (t_p ≤ 1 ms), and it maintains R_CEsat ≤ 700 mΩ under full −500 mA/−50 mA drive conditions per the datasheet's limiting values and characteristics tables.

Can PBLS4003Y,115 be used as a high-side switch with a 3.3 V control signal?

Yes - the NPN RET section (TR2) has VI(on) = 1.8–2.5 V, making it fully compatible with 3.3 V GPIO outputs. When TR2 is activated, it can pull TR1's base low via internal routing or external logic, enabling high-side switching of loads up to −40 V. No level shifter or additional bias resistor is required.

How does the thermal resistance of PBLS4003Y,115 affect its power handling on a standard PCB?

With R_th(j-a) = 416 K/W on FR4 (single-sided copper), a 300 mW total power dissipation results in ~125 °C junction-to-ambient rise at 25 °C ambient. This aligns with the 150 °C max T_j rating, allowing safe operation up to ~25 °C ambient before thermal derating begins - typical for handheld device internal layers.

Is the SOT363 package of PBLS4003Y,115 compatible with standard reflow soldering processes?

Yes - the SOT363 package is qualified for reflow soldering only, per NXP's thermal specifications. The device uses standard SnPb or lead-free solder profiles, with maximum peak temperature of 260 °C for ≤10 s. Wave soldering and hand soldering are not recommended due to thermal stress risks on the fine-pitch leads.