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

Nexperia USA Inc. PBSS4330PAS-QX

Name: PBSS4330PAS-QX
Brand: Nexperia USA Inc.
SKU: PBSS4330PAS-QX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PBSS4330PAS-QX

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: 3-UDFN Exposed Pad

Datasheet:: PBSS4330PAS-QX.pdf

Description:: TRANS NPN 30V 3A DFN2020D-3

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Product details

Overview

PBSS4330PAS-QX from Nexperia is a 30 V, 3 A NPN low V_CE(sat) transistor in a DFN2020D-3 (SOT1061D) leadless package, designed for high-efficiency switching in automotive power management. It delivers 75 mΩ typical R_CE(sat) at I_C = 3 A / I_B = 300 mA, supports 175 °C junction operation, and is AEC-Q101 qualified for loadswitch and battery-driven motor control.

For engineers reviewing the PBSS4330PAS-QX datasheet, PBSS4330PAS-QX pinout, PBSS4330PAS-QX application, or PBSS4330PAS-QX equivalent, key selection criteria include its ultra-low saturation resistance, side-wettable flanks for AOI-compatible solder joint inspection, thermal performance on FR4 and ceramic PCBs, and PNP complement PBSS5330PAS compatibility in dual-switch designs.

Technical Context

This NPN transistor operates as a medium-power discrete switch with optimized charge storage and minority-carrier lifetime control to achieve fast switching (t_on = 63 ns, t_off = 270 ns) while maintaining low V_CE(sat). Its DFN2020D-3 package integrates an exposed collector pad for direct thermal conduction and electrical grounding.

The device uses epitaxial planar technology with tailored doping profiles to sustain h_FE = 180–310 at I_C = 3 A and deliver stable V_BE(sat) = 1.07–1.2 V under pulsed conditions (t_p ≤ 300 µs, duty ≤ 0.02), enabling robust gate drive design in 12 V automotive systems.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	30 V - Maximum safe collector-emitter voltage with base open; defines system rail compatibility up to 24 V nominal automotive supplies.
I_C	3 A continuous - Sustained DC current handling capability; enables direct driving of small motors, fans, and LED arrays without external heatsinking on 1 cm² copper.
R_CE(sat)	75–100 mΩ - Low on-state resistance reduces conduction loss to ≤0.9 W at 3 A, minimizing thermal stress in compact layouts.
h_FE	180–310 at I_C = 3 A - High DC current gain ensures reliable saturation with modest base drive (I_B = 300 mA), easing MCU GPIO or driver IC selection.
T_j(max)	175 °C - Extended junction temperature rating supports operation in engine bay or under-hood environments without derating.
f_T	100–210 MHz - Transition frequency confirms suitability for PWM switching up to ~10 MHz with controlled rise/fall times (t_r = 52 ns, t_f = 40 ns).

Pinout & Package

Encapsulated in the DFN2020D-3 (SOT1061D) ultra-thin leadless package (2.0 mm × 2.0 mm × 0.65 mm), this device features side-wettable flanks for automated optical inspection and an exposed collector pad for thermal and electrical performance.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Control terminal accepting 300 mA pulsed base current to saturate the transistor; requires current-limiting resistor when driven from 3.3 V/5 V logic.
2	Emitter (E)	Reference node tied to system ground or low-side return path; forms the common emitter configuration for standard switching topologies.
3	Collector (C)	Power output terminal connected to load; electrically and thermally coupled to the exposed bottom pad for efficient heat dissipation into PCB copper.

Key Features

Feature	Design Value
Low V_CE(sat)	220–300 mV at I_C = 3 A - Reduces power loss by >50% versus standard bipolar transistors, directly lowering board temperature rise.
Side-wettable flanks	Visible solder joints on package edges - Enables 100% automated optical inspection (AOI) without X-ray, improving manufacturing yield and field reliability.
AEC-Q101 qualification	Stress-tested per automotive discrete semiconductor standard - Validated for use in safety-critical modules including body control units and ADAS power stages.
Thermal enhancement	R_th(j-a) = 60 K/W on 4-layer FR4 with 1 cm² collector pad - Supports 2.5 W total power dissipation without external heatsink, simplifying mechanical design.

Applications

Load Switch

Battery-Driven Devices

Use Scenario: High-side or low-side power control for infotainment display backlight and USB-C port power enable in automotive head units.

IC Role / Device Role / Timing Role: Discrete NPN switch replacing MOSFETs where gate drive complexity or cost must be minimized; operates in saturated switching mode with <63 ns turn-on.

Use Value: 75 mΩ R_CE(sat) limits voltage drop to <230 mV at 3 A, preserving battery runtime and reducing thermal footprint on dense PCBs.

Use Scenario: Power path management in portable medical monitors and handheld test equipment powered by Li-ion packs.

IC Role / Device Role / Timing Role: Loadswitch isolating auxiliary rails (e.g., sensor bias, audio amplifier) during sleep mode; leverages low I_CES (<100 nA) for minimal quiescent drain.

Use Value: 175 °C T_j(max) and AEC-Q101 qualification ensure operational integrity across extended temperature cycling in field-deployed devices.

Power Management

Charging Circuits

Use Scenario: Secondary-side synchronous rectification control and overcurrent protection in 12 V/48 V DC-DC converters for vehicle electrification subsystems.

IC Role / Device Role / Timing Role: Fast-switching discrete transistor used in active clamp or current-sense shunt bypass paths; benefits from 210 MHz f_T and low C_c (21–30 pF).

Use Value: 52 ns rise time and 40 ns fall time support PWM frequencies up to 2 MHz, enabling high-efficiency, compact magnetics design.

Use Scenario: Smart battery charging control in e-bike controllers and power tool battery packs, managing charge enable/disable and fault isolation.

IC Role / Device Role / Timing Role: High-current switch in charge path between charger IC and battery terminals; handles peak I_CM = 5 A pulses during inrush or fault recovery.

Use Value: 5 A single-pulse rating and 100 °C h_FE stability allow reliable operation during transient overload events without thermal runaway.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor NSS40201LT1G	Higher V_CEO = 40 V but higher R_CE(sat) = 120 mΩ at 3 A; SOT-23 package limits thermal performance.	Lacks AEC-Q101 qualification and side-wettable flanks; unsuitable for automotive AOI production lines.	Select only for non-automotive, space-constrained 24 V industrial controls where 40 V margin outweighs thermal penalty.
Diodes Incorporated DXTN3020PSQ-13	Same DFN2020D-3 package and AEC-Q101 rating, but PNP polarity; complementary use only with PBSS4330PAS-QX in H-bridge or dual-rail designs.	Not a functional replacement; serves opposite circuit role (high-side vs. low-side switching) and requires separate base drive inversion.	Choose for matched pair implementation in bidirectional motor drivers or redundant power switches requiring polarity symmetry.

Compared with NSS40201LT1G, PBSS4330PAS-QX offers 38% lower conduction loss and full automotive process validation; versus DXTN3020PSQ-13, it provides native NPN topology for simplified low-side drive but requires separate PNP for complementary switching.

Availability

PBSS4330PAS-QX is available at Aetrix Electronics and suitable for automotive body electronics, battery-powered medical instrumentation, and industrial motor control requiring stable component supply across multi-year production cycles.

Supply support for PBSS4330PAS-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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.

PBSS4330PAS-QX belongs to Nexperia's Automotive Qualified Low V_CE(sat) Transistor product line, engineered specifically for high-reliability power switching in harsh-environment automotive ECUs and battery management systems.

FAQ

What is the maximum allowable base current for continuous operation?

The absolute maximum base current is 500 mA per limiting values table. However, for reliable continuous operation at I_C = 3 A, the recommended pulsed base drive is 300 mA (duty ≤ 0.02, t_p ≤ 300 µs). Sustained DC base current above 100 mA requires thermal evaluation of the base region due to localized heating not captured in P_tot ratings.

Can PBSS4330PAS-QX be used in high-frequency PWM applications above 1 MHz?

Yes - with verified t_r = 52 ns and t_f = 40 ns, the device supports clean switching up to 2 MHz in well-designed gate-drive circuits. Its 210 MHz f_T and low C_c = 21–30 pF minimize Miller effect, but layout parasitics (especially inductance in base path) must be minimized to maintain timing integrity.

How does the DFN2020D-3 package perform thermally on standard FR4 versus ceramic PCBs?

On standard FR4 with single-sided 1 cm² copper, R_th(j-a) = 250 K/W; with 6 cm² collector pad, it improves to 100 K/W. On Al₂O₃ ceramic, R_th(j-a) reaches 60 K/W - a 4× improvement over basic FR4. This allows 2.5 W dissipation on ceramic versus 0.6 W on minimal FR4, directly impacting power density and reliability.

Is PBSS4330PAS-QX pin-compatible with other DFN2020D-3 transistors?

Yes - the DFN2020D-3 (SOT1061D) footprint is standardized across Nexperia and multiple suppliers. Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector is consistent. However, thermal pad layout and solder mask clearance must match Figure 19's reflow footprint (2.1 mm × 1.7 mm lands, 0.35 mm solder paste stencil) to ensure void-free solder joints and optimal thermal transfer.

PBSS4330PAS-QX Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: 3-UDFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: NPN

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

Voltage - Collector Emitter Breakdown (Max):: 30 V

Vce Saturation (Max) @ Ib, Ic:: 220mV @ 100mA, 2A

Current - Collector Cutoff (Max):: 100nA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 300 @ 500mA, 2V

Power - Max:: 600 mW

Frequency - Transition:: 210MHz

Operating Temperature:: 175°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: DFN2020D-3

PBSS4330PAS-QX FAQ

1.How can I place an order for PBSS4330PAS-QX through Aetrix?

Please submit a Request for Quotation (RFQ) for PBSS4330PAS-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 PBSS4330PAS-QX reliable?

The price and inventory of PBSS4330PAS-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS4330PAS-QX is usually 5 days.

3.What payment methods are accepted for PBSS4330PAS-QX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS4330PAS-QX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PBSS4330PAS-QX?

PBSS4330PAS-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBSS4330PAS-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 PBSS4330PAS-QX?

For technical support, including PBSS4330PAS-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS4330PAS-QX requirements.

6.How does Aetrix verify that PBSS4330PAS-QX is sourced from the original manufacturer or authorized distributors?

All PBSS4330PAS-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 PBSS4330PAS-QX meets industry standards.

7.What is the process for return or replacement of PBSS4330PAS-QX?

All PBSS4330PAS-QX units undergo pre-shipment inspection (PSI). If there is an issue with PBSS4330PAS-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 PBSS4330PAS-QX part is unused and in its original packaging.

Return procedure for PBSS4330PAS-QX:

1.Submit a request within 90 days.

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

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