Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Nexperia USA Inc. PBSS5350X,146

Name: PBSS5350X,146
Brand: Nexperia USA Inc.
SKU: PBSS5350X,146
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: PBSS5350X,146

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: TO-243AA

Datasheet:: PBSS5350X,146.pdf

Description:: TRANS PNP 50V 3A SOT-89

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:1,000

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

PBSS5350X,146 from Nexperia is a PNP low V_CEsat transistor in SOT89 package, rated for −50 V V_CEO, −3 A continuous collector current, and 90 mΩ typical R_CEsat at −2 A/−200 mA drive. It serves as a high-efficiency power switch in automotive-qualified DC/DC converters and battery charger circuits.

For engineers reviewing the PBSS5350X,146 datasheet, PBSS5350X,146 pinout, PBSS5350X,146 application, or PBSS5350X,146 equivalent, key selection criteria include its AEC-Q101 qualification, low saturation resistance under pulsed conditions, thermal performance on FR4 PCBs, and compatibility with low-voltage driver stages in supply-line switching.

Technical Context

This PNP bipolar transistor operates with fixed base-emitter turn-on voltage (V_BEon = −1.1 V at −1 A), delivers h_FE ≥ 80 at −3 A/−300 mA drive, and maintains stable V_CEsat ≤ −390 mV across temperature when biased at IC/IB = 10. Its design targets high-current, low-loss switching where minimal heat generation is critical.

Thermal behavior is defined by junction-to-ambient resistance ranging from 80 K/W (ceramic PCB, 7 cm² pad) to 225 K/W (standard FR4 footprint), and transient impedance curves confirm robust pulse-handling capability up to 5 A peak with duty cycles down to 1%.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−50 V - Maximum safe collector-emitter blocking voltage with base open; enables use in 24 V automotive supply rails with margin.
I_C	−3 A - Continuous DC collector current rating; supports sustained load switching in peripheral drivers and LED backlighting.
R_CEsat	90–135 mΩ - Equivalent on-resistance at −2 A/−200 mA; directly determines conduction loss and board-level thermal rise.
V_CEsat	≤ −390 mV - Saturation voltage at −3 A/−300 mA; enables <120 mW conduction loss per switch event in pulsed operation.
f_T	100 MHz - Transition frequency at −5 V V_CE, −100 mA I_C; sufficient for PWM control up to ~1–2 MHz in DC/DC topologies.
AEC-Q101	Qualified - Certified for automotive applications per stress test standard; validated for temperature cycling, HTRB, and ESD robustness.

Pinout & Package

SOT89 (SC-62) plastic surface-mount package: 3-lead, 1.5 mm pitch, 4.5 mm × 2.5 mm × 1.5 mm body, with exposed collector tab for thermal dissipation.

Pin/Terminal	Circuit Role	Design Meaning
1	Emitter	Current exit path; connected to system ground or negative rail in high-side switch configurations.
2	Collector	Main current input terminal; electrically and thermally tied to large copper pad for heat transfer and low-inductance routing.
3	Base	Control input; requires −300 mA drive for full saturation at −3 A load; compatible with standard logic-level or dedicated driver ICs.

Key Features

Feature	Design Value
Low V_CEsat	≤ −390 mV at −3 A ensures <120 mW conduction loss, reducing heatsink requirements in space-constrained designs.
High I_CM	−5 A peak collector current enables short-duration surge handling in motor and relay drive applications.
AEC-Q101 qualification	Validated for automotive underhood environments including temperature cycling (−40 °C to +125 °C) and humidity exposure.
Thermal derating support	Four distinct R_th(j-a) values (80–225 K/W) allow precise thermal modeling based on actual PCB layout and copper area.

Applications

Automotive Power Management

DC/DC Converter Switch

Use Scenario: High-side switching of 12 V/24 V auxiliary loads (e.g., HVAC actuators, window lift modules) in passenger vehicles.

IC Role / Device Role / Timing Role: PNP power switch controlling load current path between battery and grounded load.

Use Value: Low R_CEsat minimizes voltage drop and self-heating during continuous 2–3 A operation, extending component lifetime in sealed enclosures.

Use Scenario: Synchronous rectifier or main switch in non-isolated buck converter for infotainment power rail (5 V @ 2 A).

IC Role / Device Role / Timing Role: Fast-turning PNP transistor operating at 500 kHz PWM frequency with controlled V_CEsat and f_T.

Use Value: 100 MHz f_T and sub-400 mV V_CEsat reduce switching and conduction losses, improving efficiency above 92% at full load.

Battery Charger Control

LCD Backlight Driver

Use Scenario: Charge path enable/disable in portable medical device with dual Li-ion cells and 5 V USB input.

IC Role / Device Role / Timing Role: Reverse-polarity protection and charge current gate in linear or hybrid charging architecture.

Use Value: −50 V V_CEO provides headroom against input transients; AEC-Q101 grade assures reliability over 500+ charge cycles.

Use Scenario: Current-regulated LED string driver for industrial panel display (12 white LEDs, 350 mA total).

IC Role / Device Role / Timing Role: Constant-current sink switch modulated via PWM dimming signal.

Use Value: Stable h_FE ≥ 80 at −3 A ensures predictable base drive sizing; low V_CEsat preserves forward voltage margin for LED string compliance.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP low-V_CEsat transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor NSS5350M3T5G	Same SOT89 package, −50 V V_CEO, but higher R_CEsat (150 mΩ typ) and lower I_C (−2.5 A).	Less suitable for 3 A continuous loads; acceptable for intermittent 2 A peripheral drivers.	Select when cost sensitivity outweighs marginal efficiency loss and thermal margin is available.
Diodes Incorporated DXT5350Z-13	−45 V V_CEO, −3 A I_C, R_CEsat = 110 mΩ typ; not AEC-Q101 qualified.	Not approved for automotive use; limited to industrial or consumer-grade power management.	Choose only for non-automotive applications where qualification is not required and 5 V margin is acceptable.

Compared with NSS5350M3T5G and DXT5350Z-13, PBSS5350X,146 offers superior R_CEsat and formal automotive qualification-critical for designs requiring long-term reliability in temperature-cycled environments without derating.

Availability

PBSS5350X,146 is available at Aetrix Electronics and suitable for automotive power management, DC/DC converters, and battery charger applications requiring stable component supply, traceable sourcing, and lifecycle continuity.

Supply support for PBSS5350X,146 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 energy-efficient power solutions.

PBSS5350X belongs to Nexperia's low V_CEsat transistor product line, engineered specifically for high-current, low-loss switching in automotive and industrial power systems where thermal efficiency and qualification rigor are mandatory.

FAQ

What is the maximum allowable base current for continuous operation?

The absolute maximum base current is −0.5 A per datasheet limiting values. For reliable continuous operation at −3 A collector current, Nexperia specifies −300 mA base drive (IC/IB = 10), ensuring full saturation while maintaining thermal stability within the SOT89 package's 1.6 W power limit on ceramic PCB.

Can PBSS5350X,146 be used in parallel configurations?

Parallel operation is not recommended due to inherent V_CEsat mismatch between units and lack of built-in current-sharing features. If higher current is needed, select a single higher-rated device such as PBSS5360X (−60 V, −4 A) or verify matching via binning and external emitter resistors per application note AN10274.

Is the SOT89 package lead-free and RoHS compliant?

Yes, PBSS5350X,146 is manufactured using lead-free solderable terminations and complies with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, as confirmed in Nexperia's official compliance documentation dated May 2022.

How does thermal performance change with PCB copper area?

R_th(j-a) improves from 225 K/W (standard FR4 footprint) to 80 K/W (ceramic PCB with 7 cm² collector pad). Doubling the FR4 copper area from 1 cm² to 6 cm² reduces thermal resistance from 125 K/W to 90 K/W-directly enabling 30% higher continuous current before reaching T_j = 150 °C.

PBSS5350X,146 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-243AA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 3 A

Voltage - Collector Emitter Breakdown (Max):: 50 V

Vce Saturation (Max) @ Ib, Ic:: 390mV @ 300mA, 3A

Current - Collector Cutoff (Max):: 100nA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 200 @ 1A, 2V

Power - Max:: 1.6 W

Frequency - Transition:: 100MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-89

PBSS5350X,146 FAQ

1.How can I place an order for PBSS5350X,146 through Aetrix?

Please submit a Request for Quotation (RFQ) for PBSS5350X,146 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 PBSS5350X,146 reliable?

The price and inventory of PBSS5350X,146 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS5350X,146 is usually 5 days.

3.What payment methods are accepted for PBSS5350X,146?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS5350X,146 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PBSS5350X,146?

PBSS5350X,146 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBSS5350X,146 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 PBSS5350X,146?

For technical support, including PBSS5350X,146 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS5350X,146 requirements.

6.How does Aetrix verify that PBSS5350X,146 is sourced from the original manufacturer or authorized distributors?

All PBSS5350X,146 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 PBSS5350X,146 meets industry standards.

7.What is the process for return or replacement of PBSS5350X,146?

All PBSS5350X,146 units undergo pre-shipment inspection (PSI). If there is an issue with PBSS5350X,146, 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 PBSS5350X,146 part is unused and in its original packaging.

Return procedure for PBSS5350X,146:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…