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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

Nexperia USA Inc. PBSS5250PAS-QX

Name: PBSS5250PAS-QX
Brand: Nexperia USA Inc.
SKU: PBSS5250PAS-QX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PBSS5250PAS-QX

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: -

Datasheet:: PBSS5250PAS-QX.pdf

Description:: PBSS5250PAS-Q/SOT1061/HUSON3

Quantity:: RFQ Add To RFQ list

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Inventory:3,000

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Product details

Overview

PBSS5250PAS-QX from Nexperia is a PNP low V_CE(sat) transistor in DFN2020D-3 (SOT1061D) package, rated for −50 V V_CEO, −2 A I_C, and −380 mV V_CE(sat) at −2 A/−100 mA drive, used as a high-efficiency load switch in automotive power management circuits.

For engineers reviewing the PBSS5250PAS-QX datasheet, PBSS5250PAS-QX pinout, PBSS5250PAS-QX application, or PBSS5250PAS-QX equivalent, this page delivers verified electrical specs, thermal derating behavior, AEC-Q101 qualification status, and validated automotive-grade PCB mounting guidance - all critical for battery-driven switching and motor control designs.

Technical Context

This PNP transistor operates with fixed-polarity biasing, requiring negative base-emitter voltage to saturate. Its low −380 mV V_CE(sat) at −2 A enables <1 W conduction loss under full load, while its 160 mΩ R_CE(sat) supports stable current handling across −55 °C to +150 °C junction temperature range.

The DFN2020D-3 package integrates side-wettable flanks and an exposed collector pad, enabling AOI-compatible solder joints and thermal resistance as low as 60 K/W (4-layer FR4, 1 cm² collector pad), directly supporting high-reliability automotive thermal management requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−50 V - Maximum blocking voltage between collector and emitter with base open; defines safe operating range in 12 V/24 V automotive systems.
I_C	−2 A continuous - Sustained load current capability without thermal runaway on standard FR4 PCBs.
V_CE(sat)	−380 mV at −2 A/−100 mA - Enables <0.76 W conduction loss, reducing heatsink need in space-constrained modules.
h_FE	100 min at −2 A - Ensures reliable saturation with modest base drive, simplifying gate driver interface design.
R_th(j-a)	60 K/W (4-layer FR4, 1 cm² collector pad) - Confirmed thermal path for ≤1.2 W dissipation at 75 °C ambient.
AEC-Q101	Qualified - Validated for automotive use per stress test requirements including HTGB, HTRB, and temperature cycling.

Pinout & Package

DFN2020D-3 (SOT1061D) is a 2 mm × 2 mm × 0.65 mm leadless thermally enhanced package with side-wettable flanks and an exposed collector pad for direct thermal and electrical connection to PCB copper.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Control input requiring negative bias relative to emitter; drives transistor into saturation with −100 mA typical.
2	Emitter (E)	Common reference node; connected to higher potential rail (e.g., battery +) in high-side switch configuration.
3	Collector (C)	Switched output terminal; electrically and thermally tied to exposed pad for low-resistance current path and heat transfer.

Key Features

Feature	Design Value
Low V_CE(sat)	−380 mV at −2 A ensures <0.8 W conduction loss, minimizing self-heating in compact battery-powered modules.
Thermal enhancement	Exposed collector pad + side-wettable flanks enable AOI-verified solder joints and 60 K/W R_th(j-a) on 4-layer boards.
AEC-Q101 qualification	Validated for automotive applications including engine control, body electronics, and ADAS power stages.
Small footprint	2 mm × 2 mm DFN2020D-3 saves >50% board area vs. SOT23, critical for multi-rail power management ICs.

Applications

Automotive Body Control Module (BCM)

Battery Management System (BMS) Load Switch

Use Scenario: Controlling 12 V lighting, door locks, and window motors in modern BCMs.

IC Role / Device Role / Timing Role: High-side PNP switch replacing mechanical relays to reduce size, noise, and failure rate.

Use Value: −380 mV V_CE(sat) limits power loss to <0.8 W at 2 A, eliminating need for discrete heatsinks in sealed enclosures.

Use Scenario: Isolating auxiliary battery banks during charging/discharging cycles in EV and HEV BMS.

IC Role / Device Role / Timing Role: Bidirectional load switch enabling controlled power routing between battery cells and DC-DC converters.

Use Value: AEC-Q101 qualification and −50 V V_CEO support safe operation across 12–48 V battery architectures with transient margin.

USB-C Power Delivery (PD) Adapter

Fan/Motor Driver in HVAC Modules

Use Scenario: Enabling/disabling 5–20 V output rails in compact USB-C PD adapters with tight thermal budgets.

IC Role / Device Role / Timing Role: Low-loss PNP pass element in linear or hybrid regulation stages before buck conversion.

Use Value: 160 mΩ R_CE(sat) and 100 h_FE allow stable 2 A switching with minimal base drive circuitry and no external compensation.

Use Scenario: Driving cooling fans and small blowers in automotive HVAC control units.

IC Role / Device Role / Timing Role: Robust PNP switch interfacing microcontroller GPIOs to inductive loads with integrated flyback protection.

Use Value: −5 V V_EBO rating and −50 µA I_CES ensure immunity to reverse-battery transients and leakage-induced false turn-on.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP low V_CE(sat) transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor NSS40501MR6T1G	−40 V V_CEO, −1.5 A I_C, −450 mV V_CE(sat) - lower voltage rating, higher saturation voltage.	Not qualified to AEC-Q101; limited to industrial/commercial use only.	Select when cost sensitivity outweighs automotive qualification and 50 V headroom is unnecessary.
Diodes Incorporated DMMT5201WQ-7	−50 V V_CEO, −1 A I_C, −350 mV V_CE(sat) - half the current rating, slightly lower V_CE(sat).	AEC-Q101 qualified but rated only for −1 A continuous; unsuitable for 2 A sustained loads.	Choose only for space-constrained 1 A applications where footprint compatibility with DFN2020D-3 is required.

Compared with NSS40501MR6T1G and DMMT5201WQ-7, PBSS5250PAS-QX uniquely combines AEC-Q101 qualification, −50 V/−2 A ratings, and −380 mV V_CE(sat) in a single DFN2020D-3 package - making it the only drop-in solution for automotive 2 A load switching where reliability, voltage margin, and thermal efficiency are jointly constrained.

Availability

PBSS5250PAS-QX is available at Aetrix Electronics and suitable for automotive body control modules, battery management systems, and USB-C power delivery adapters requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for PBSS5250PAS-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 deep expertise in automotive-qualified components and advanced packaging.

PBSS5250PAS-QX belongs to Nexperia's Automotive PNP Low V_CE(sat) Transistor product line, engineered specifically for efficient, robust high-side switching in 12 V and 24 V automotive subsystems.

FAQ

What is the maximum allowable junction temperature for PBSS5250PAS-QX?

The absolute maximum junction temperature (T_j) is 150 °C, as defined in the Absolute Maximum Ratings table. Operation above this limit risks permanent device degradation. Thermal design must ensure T_j remains ≤150 °C under worst-case ambient and power dissipation conditions, using the published R_th(j-a) values for the specific PCB layout.

Can PBSS5250PAS-QX be used in high-frequency switching applications?

No - its f_T is 100 MHz, but it is not optimized for fast switching. The datasheet specifies V_CE(sat) and h_FE under DC/pulsed conditions (tp ≤ 300 µs), and no switching time data (t_on/t_off) is provided. It is intended for DC or low-frequency (<10 kHz) load switching, not PWM motor control or SMPS applications.

Is the exposed pad on the DFN2020D-3 package electrically connected?

Yes - the exposed pad is internally connected to the collector terminal. It must be soldered to a PCB copper pour designated as the collector net to achieve specified thermal resistance and current-carrying capacity. Failure to connect it results in degraded R_th(j-a) and reduced I_C capability.

Does PBSS5250PAS-QX require a base resistor in series with the microcontroller GPIO?

Yes - a base resistor is mandatory to limit I_B within the −0.5 A absolute maximum rating and ensure proper saturation. For −2 A I_C, minimum I_B = −20 mA (h_FE = 100); typical design uses −100 mA drive, requiring ~47 Ω resistor with −5 V GPIO swing, per datasheet Fig. 9 and Table 7.

PBSS5250PAS-QX Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: -

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: -

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

Voltage - Collector Emitter Breakdown (Max):: -

Vce Saturation (Max) @ Ib, Ic:: -

Current - Collector Cutoff (Max):: -

DC Current Gain (hFE) (Min) @ Ic, Vce:: -

Power - Max:: -

Frequency - Transition:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

PBSS5250PAS-QX FAQ

1.How can I place an order for PBSS5250PAS-QX through Aetrix?

Please submit a Request for Quotation (RFQ) for PBSS5250PAS-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 PBSS5250PAS-QX reliable?

The price and inventory of PBSS5250PAS-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS5250PAS-QX is usually 5 days.

3.What payment methods are accepted for PBSS5250PAS-QX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS5250PAS-QX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PBSS5250PAS-QX?

PBSS5250PAS-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBSS5250PAS-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 PBSS5250PAS-QX?

For technical support, including PBSS5250PAS-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS5250PAS-QX requirements.

6.How does Aetrix verify that PBSS5250PAS-QX is sourced from the original manufacturer or authorized distributors?

All PBSS5250PAS-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 PBSS5250PAS-QX meets industry standards.

7.What is the process for return or replacement of PBSS5250PAS-QX?

All PBSS5250PAS-QX units undergo pre-shipment inspection (PSI). If there is an issue with PBSS5250PAS-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 PBSS5250PAS-QX part is unused and in its original packaging.

Return procedure for PBSS5250PAS-QX:

1.Submit a request within 90 days.

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

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