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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Bipolar Transistor Arrays

Nexperia USA Inc. PBSS5255PAPS-QX

Name: PBSS5255PAPS-QX
Brand: Nexperia USA Inc.
SKU: PBSS5255PAPS-QX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PBSS5255PAPS-QX

Manufacturer:: Nexperia USA Inc.

Category:: Bipolar Transistor Arrays

Package:: 6-UDFN Exposed Pad

Datasheet:: PBSS5255PAPS-QX.pdf

Description:: TRANS 2PNP 55V 2A DFN2020D-6

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Product details

Overview

PBSS5255PAPS-QX from Nexperia is a PNP/PNP low-V_CEsat BISS double transistor in DFN2020D-6 (SOT1118D) package, rated for −55 V V_CEO, −2 A continuous I_C, and −300 mV typical V_CEsat at I_C = −0.7 A / I_B = −7 mA. It serves as a dual high-efficiency load switch in automotive power management and battery-driven LED lighting circuits.

For engineers reviewing the PBSS5255PAPS-QX datasheet, PBSS5255PAPS-QX pinout, PBSS5255PAPS-QX application, or PBSS5255PAPS-QX equivalent, this device is selected for low-loss switching in space-constrained 12 V/24 V automotive subsystems requiring AEC-Q101 qualification, thermal robustness on FR4 PCBs, and side-wettable flank solderability for AOI.

Technical Context

This dual PNP BISS transistor integrates two matched high-gain, low-saturation transistors sharing thermal coupling in a single thermally enhanced DFN package. Its architecture enables independent control of two loads with shared ground reference while maintaining <150 °C max junction temperature under 700 mW per-device dissipation on 4-layer FR4.

Each transistor delivers h_FE = 50–75 at I_C = −2 A and supports fast switching with t_on = 90 ns and t_off = 270 ns under I_Bon/I_Boff = ±50 mA conditions, enabling efficient PWM-driven motor and fan control without external snubbing.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−55 V - Withstands reverse-biased collector-emitter voltage up to automotive load-dump transients.
I_C (continuous)	−2 A - Supports sustained current for dual-channel 2 A load switches without derating at T_amb ≤ 75 °C.
V_CEsat (typ)	−300 mV @ I_C = −0.7 A / I_B = −7 mA - Enables <0.21 W conduction loss per transistor at mid-load, reducing thermal stress.
h_FE	50–75 @ I_C = −2 A - Ensures reliable saturation with modest base drive, simplifying driver design.
R_th(j-a) (min)	131 K/W - Achieved on 4-layer FR4 with 1 cm² collector pad, allowing 960 mW total device dissipation at 25 °C ambient.
f_T	100 MHz - Supports high-frequency switching (>100 kHz) in DC-DC pre-regulator or LED dimming stages.
C_c	16 pF - Low collector capacitance minimizes switching losses and EMI in hard-switched topologies.

Pinout & Package

DFN2020D-6 (SOT1118D) is a 2 mm × 2 mm × 0.65 mm leadless thermally enhanced package with side-wettable flanks for automated optical inspection and high thermal conductivity via exposed copper pads.

Pin/Terminal	Circuit Role	Design Meaning
1	E1	Emitter of transistor TR1 - Connected to load return path; electrically tied to thermal pad in layout.
2	B1	Base of transistor TR1 - Requires current-limited drive; sensitive to ESD due to low V_EBO = −7 V.
3	C2	Collector of transistor TR2 - High-side connection point for second load; shares thermal mass with C1.
4	E2	Emitter of transistor TR2 - Independent return node; enables dual-load isolation in battery monitoring paths.
5	B2	Base of transistor TR2 - Electrically isolated from B1; allows asynchronous control of two channels.
6	C1	Collector of transistor TR1 - Primary high-side power input; designed for direct routing to 12 V/24 V rail.

Key Features

Feature	Design Value
Low V_CEsat	−300 mV typ. at I_C = −0.7 A reduces conduction loss by >40% vs. standard PNP transistors, cutting board-level heat generation.
AEC-Q101 qualified	Qualified for automotive applications including engine control modules and body electronics, supporting 15-year lifecycle reliability.
Side-wettable flanks	Enables automated optical inspection (AOI) of solder joints without X-ray, improving manufacturing yield in SMT lines.
Thermal enhancement	Exposed thermal pad and optimized copper layout deliver 960 mW total device power dissipation on 4-layer FR4 with 1 cm² pad.
High h_FE at high I_C	h_FE ≥ 50 at −2 A ensures stable saturation with minimal base drive current, easing microcontroller GPIO interface.

Applications

Automotive Body Control Module

Battery-Powered LED Driver

Use Scenario: Controlling door lock actuators and interior lighting in 12 V vehicle networks.

IC Role / Device Role / Timing Role: Dual PNP load switch managing two independent 1.5 A resistive/inductive loads with coordinated enable timing.

Use Value: −300 mV V_CEsat limits power loss to 450 mW per channel, eliminating need for heatsinks in compact BCM housings.

Use Scenario: Constant-current dimming of high-brightness LED strings in portable medical devices.

IC Role / Device Role / Timing Role: Synchronous high-side switch in buck-derived current regulator, driven by MCU PWM at 1–10 kHz.

Use Value: 100 MHz f_T and 90 ns t_on ensure clean edge fidelity and minimal duty-cycle distortion during dimming.

USB-C Power Delivery Load Switch

Industrial 24 V PLC Output Stage

Use Scenario: Dual-path overcurrent protection and hot-swap control in USB-C PD sink adapters.

IC Role / Device Role / Timing Role: Back-to-back PNP pair implementing reverse-polarity and short-circuit protected 5 V/20 V output rails.

Use Value: Matched V_CEsat and h_FE between TR1/TR2 ensure balanced current sharing and thermal tracking during fault events.

Use Scenario: Driving solenoid valves and relay coils in DIN-rail mounted programmable logic controllers.

IC Role / Device Role / Timing Role: High-reliability discrete switch replacing integrated drivers where 2 A peak surge current and −55 V flyback tolerance are required.

Use Value: −55 V V_CEO and −3 A I_CM withstand inductive kickback from 24 V solenoids without clamping diodes.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor NSS40201MR6T1G	−40 V V_CEO, −2 A I_C, −450 mV V_CEsat typ., SOT-563 package, no AEC-Q101 rating	Limited to non-automotive industrial use; lacks side-wettable flanks and thermal performance of DFN2020D-6	Select when cost sensitivity outweighs automotive qualification and thermal requirements.
Diodes Incorporated DMMT5201WQ-7	−50 V V_CEO, −1.5 A I_C, −350 mV V_CEsat typ., SOT-363 package, AEC-Q101 qualified	Lower current rating and higher R_th(j-a) (250 K/W) restrict use to <1 A continuous loads in constrained thermal environments	Choose for legacy SOT-363 footprint compatibility where 1.5 A max load suffices and board area permits larger package.

Compared with NSS40201MR6T1G and DMMT5201WQ-7, PBSS5255PAPS-QX delivers superior thermal capability (131 K/W), higher voltage margin (−55 V), and lower saturation voltage (−300 mV), making it optimal for automotive-grade dual-load switching where space, efficiency, and reliability are co-constrained.

Availability

PBSS5255PAPS-QX is available at Aetrix Electronics and suitable for automotive body control modules, battery-powered LED lighting systems, and industrial 24 V PLC output stages requiring stable component supply across multi-year production cycles.

Supply support for PBSS5255PAPS-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.

PBSS5255PAPS-QX belongs to Nexperia's BISS transistor product line, engineered specifically for low-loss, thermally efficient load switching in automotive and industrial power management applications.

FAQ

What is the maximum allowable PCB temperature rise when operating PBSS5255PAPS-QX at full 2 A per transistor?

At I_C = −2 A per transistor and V_CEsat = −420 mV (max), power dissipation per transistor is 840 mW. With R_th(j-a) = 131 K/W (4-layer FR4 + 1 cm² pad), junction-to-ambient rise is 110 K. Assuming 25 °C ambient, T_j reaches 135 °C - within the 150 °C absolute max, leaving 15 K safety margin.

Can PBSS5255PAPS-QX be used in parallel configurations to increase current handling beyond 2 A per channel?

No - the device is not characterized for paralleling. Mismatches in h_FE and V_CEsat between TR1 and TR2, combined with shared thermal mass, cause unequal current sharing. For >2 A loads, use dedicated high-current switches or discrete MOSFETs with current-sense feedback.

Does the DFN2020D-6 package require special stencil design for reflow soldering?

Yes - the side-wettable flanks demand precise solder paste deposition. Figure 17 specifies 0.35 mm wide × 0.9 mm long solder lands with 0.2 mm solder mask clearance. Use Type 4 or 5 paste and 125 µm stencil thickness to ensure consistent fillet formation on all six terminals.

How does the −7 V V_EBO limit affect base drive circuit design?

V_EBO = −7 V means emitter-base reverse bias must stay below this threshold. When driving from a microcontroller with 3.3 V or 5 V GPIO, use a series resistor ≥1 kΩ to limit reverse base current during fast turn-off transients, preventing junction breakdown and gain degradation over time.

PBSS5255PAPS-QX Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: 6-UDFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: 2 PNP (Dual)

Current - Collector (Ic) (Max):: 2A

Voltage - Collector Emitter Breakdown (Max):: 55V

Vce Saturation (Max) @ Ib, Ic:: 450mV @ 200mA, 2A

Current - Collector Cutoff (Max):: 100nA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 170 @ 100mA, 2V

Power - Max:: 370mW

Frequency - Transition:: 100MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: DFN2020D-6

PBSS5255PAPS-QX FAQ

1.How can I place an order for PBSS5255PAPS-QX through Aetrix?

Please submit a Request for Quotation (RFQ) for PBSS5255PAPS-QX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for PBSS5255PAPS-QX reliable?

The price and inventory of PBSS5255PAPS-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS5255PAPS-QX is usually 5 days.

3.What payment methods are accepted for PBSS5255PAPS-QX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS5255PAPS-QX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PBSS5255PAPS-QX?

PBSS5255PAPS-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBSS5255PAPS-QX order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for PBSS5255PAPS-QX?

For technical support, including PBSS5255PAPS-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS5255PAPS-QX requirements.

6.How does Aetrix verify that PBSS5255PAPS-QX is sourced from the original manufacturer or authorized distributors?

All PBSS5255PAPS-QX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PBSS5255PAPS-QX meets industry standards.

7.What is the process for return or replacement of PBSS5255PAPS-QX?

All PBSS5255PAPS-QX units undergo pre-shipment inspection (PSI). If there is an issue with PBSS5255PAPS-QX, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The PBSS5255PAPS-QX part is unused and in its original packaging.

Return procedure for PBSS5255PAPS-QX:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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