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

Nexperia USA Inc. PBSS304PX-QX

Name: PBSS304PX-QX
Brand: Nexperia USA Inc.
SKU: PBSS304PX-QX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PBSS304PX-QX

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: TO-243AA

Datasheet:: PBSS304PX-QX.pdf

Description:: TRANS PNP 60V 4.2A SOT-89

Quantity:: RFQ Add To RFQ list

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Product details

Overview

PBSS304PX-Q from Nexperia is a PNP low V_CEsat transistor in SOT89 package, rated for −60 V V_CEO, −4.2 A continuous collector current, and 48–69 mΩ R_CEsat at −4 A/−200 mA drive. It serves as a high-efficiency high-voltage switch in automotive power stages, delivering reduced conduction loss and thermal footprint.

For engineers reviewing the PBSS304PX-Q datasheet, PBSS304PX-Q pinout, PBSS304PX-Q application, or PBSS304PX-Q equivalent, key selection criteria include its AEC-Q101 qualification, low saturation resistance under high-current pulsed conditions, thermal performance on FR4 vs. ceramic PCBs, and complementary NPN pairing with PBSS304NX.

Technical Context

This PNP bipolar junction transistor operates in saturation switching mode with V_CEsat ≤ 275 mV at −4 A/−200 mA (T_amb = 25 °C), enabling high-efficiency DC-DC and gate-driving circuits. Its h_FE ranges from 60 to 100 at −6 A, supporting robust base drive margin in high-side configurations.

Thermal design is enabled by three defined R_th(j-a) values: 208 K/W (standard FR4), 76 K/W (FR4 with 6 cm² collector pad), and 60 K/W (ceramic Al₂O₃). Switching times are characterized with t_on = 80 ns and t_off = 320 ns under −12.5 V V_CC, −3 A I_C, and ±0.15 A base drive.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−60 V - Maximum safe collector-emitter blocking voltage in open-base configuration.
I_C	−4.2 A - Continuous DC collector current rating at T_amb ≤ 25 °C, defining steady-state load capacity.
R_CEsat	48–69 mΩ - On-state resistance at −4 A/−200 mA, directly determining conduction loss and heat generation.
h_FE	60–100 - DC current gain at −6 A, ensuring reliable saturation with moderate base drive current.
t_off	320 ns - Total turn-off time under −12.5 V V_CC, −3 A I_C, ±0.15 A base drive, critical for high-frequency switching.
f_T	130 MHz - Transition frequency at −10 V V_CE, −100 mA I_C, indicating usable bandwidth for analog or RF-coupled applications.
C_c	90–120 pF - Collector capacitance at −10 V V_CB, influencing switching speed and EMI behavior.

Pinout & Package

SOT89 (SC-62/TO-243) plastic surface-mount package: 3-pin, 1.5 mm pitch, 4.5 × 2.5 × 1.5 mm body, with exposed collector tab for thermal conduction.

Pin/Terminal	Circuit Role	Design Meaning
1	Emitter	Current exit node; tied to high-side rail or ground return depending on topology; electrically isolated from heatsink.
2	Collector	Main current input node; connected to exposed metal tab for direct PCB copper thermal coupling; requires solder land ≥ 6 cm² for rated 1.65 W dissipation.
3	Base	Control input; requires −200 mA drive for full saturation at −4 A; sensitive to ESD and overvoltage due to thin oxide layer.

Key Features

Feature	Design Value
Low V_CEsat	≤ 275 mV at −4 A/−200 mA enables <1.1 W conduction loss, reducing heatsink requirements in space-constrained automotive modules.
AEC-Q101 qualified	Stress-tested per Automotive Electronics Council standard for discrete semiconductors, supporting deployment in engine control, lighting, and ADAS subsystems.
High I_C/I_CM	−4.2 A continuous / −8.4 A peak current supports motor drivers and high-voltage power switches without parallel devices.
Thermal optimization	Three defined R_th(j-a) values (208/76/60 K/W) allow precise thermal modeling across FR4 and ceramic PCB implementations.
NPN complement	PBSS304NX provides matched characteristics for push-pull or H-bridge topologies requiring symmetrical PNP/NPN pairs.

Applications

High-Voltage DC-DC Conversion

Automotive High-Side Power Switch

Use Scenario: Step-down converter in 48 V automotive systems converting to 12 V for infotainment and body electronics.

IC Role / Device Role / Timing Role: High-side PNP switch controlling energy transfer into output inductor; operates in hard-switched PWM mode at 100–500 kHz.

Use Value: Low R_CEsat minimizes conduction loss at high load currents, improving efficiency by up to 2.3% versus conventional transistors at 4 A.

Use Scenario: Engine bay power distribution module switching battery voltage to fuel pump, radiator fan, or HVAC blower.

IC Role / Device Role / Timing Role: Load switch isolating downstream circuitry; driven by microcontroller GPIO with base resistor network.

Use Value: AEC-Q101 qualification ensures reliability across −40 °C to +150 °C ambient, while 60 V rating accommodates load-dump transients.

High-Voltage MOSFET Gate Driver

Industrial Motor Control Stage

Use Scenario: Level-shifting stage driving the gate of a 600 V SiC MOSFET in industrial AC-DC PFC circuits.

IC Role / Device Role / Timing Role: Fast-turn-off PNP pull-down device discharging gate capacitance during transition; complements N-channel driver IC.

Use Value: 320 ns t_off ensures clean gate discharge, reducing shoot-through risk and enabling >200 kHz switching frequencies.

Use Scenario: Phase-leg switch in 24–48 V brushed DC motor controllers for automated guided vehicles (AGVs).

IC Role / Device Role / Timing Role: High-current commutation switch handling bidirectional stall currents up to 8.4 A peak.

Use Value: 8.4 A I_CM rating supports motor startup surges without derating; SOT89 package allows compact dual-sided PCB layout.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP high-voltage switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor NSS30400PZT1G	−40 V V_CEO, −3.5 A I_C, 80–120 mΩ R_CEsat; SOT-23 package; lower voltage/current rating.	Not suitable for 48 V systems with load-dump transients; limited to ≤36 V nominal rails.	Select only when board space is critical and voltage stress remains below 40 V.
Diodes Incorporated DXT30400PZ-13	−60 V V_CEO, −4 A I_C, 60–90 mΩ R_CEsat; same SOT89 package; no AEC-Q101 qualification.	Lacks automotive qualification; not recommended for safety-critical or engine-compartment deployments.	Acceptable for industrial non-automotive use where qualification is not mandated.

Compared with NSS30400PZT1G and DXT30400PZ-13, PBSS304PX-Q uniquely combines 60 V rating, 4.2 A current, sub-70 mΩ R_CEsat, and AEC-Q101 compliance-making it the only option qualified for demanding automotive high-side switching with minimal thermal overhead.

Availability

PBSS304PX-Q is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor control, high-voltage DC-DC conversion, and MOSFET gate driving requiring stable component supply across production lifecycles.

Supply support for PBSS304PX-Q 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 system functionality, delivering high-performance, high-reliability discrete, logic, and MOSFET solutions.

PBSS304PX-Q belongs to Nexperia's Automotive-qualified PNP low V_CEsat transistor family, engineered specifically for efficient high-voltage switching in engine control units, body electronics, and ADAS power stages.

FAQ

What is the maximum allowable base current for reliable operation?

The datasheet specifies −200 mA base current for full saturation at −4 A collector current. Absolute maximum I_B is not explicitly stated, but continuous base current should remain ≤ −250 mA to avoid bond wire overheating. Pulse conditions allow higher peak I_B (e.g., −400 mA) only for tp ≤ 300 µs and duty cycle δ ≤ 0.02, as validated in R_CEsat and V_CEsat test conditions.

Can PBSS304PX-Q be used in linear amplification mode?

No-it is optimized for switching operation, not linear amplification. Its h_FE drops significantly above −2 A, and thermal resistance values assume pulsed or switched duty cycles. Linear use would exceed P_tot limits rapidly: at V_CE = −10 V and I_C = −1 A, power dissipation reaches 10 W-far exceeding the 2.1 W ceramic PCB limit.

How does the SOT89 package affect thermal performance compared to TO-220?

SOT89 delivers 60 K/W R_th(j-a) on ceramic PCB-comparable to small TO-220 variants-but with far lower profile (1.5 mm height) and no mounting hardware. However, its thermal path relies entirely on PCB copper area: on standard FR4, R_th(j-a) degrades to 208 K/W, requiring careful layout with ≥6 cm² collector pad to achieve rated 1.65 W dissipation.

Is PBSS304PX-Q pin-compatible with PBSS304NX?

No-they are complementary PNP/NPN devices with identical SOT89 footprint but reversed pinning: PBSS304PX-Q has E-C-B (pin 1–2–3), while PBSS304NX has C-E-B (pin 1–2–3). Direct substitution would reverse polarity and cause immediate failure; PCB layout must be mirrored for NPN use.

PBSS304PX-QX 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):: 4.2 A

Voltage - Collector Emitter Breakdown (Max):: 60 V

Vce Saturation (Max) @ Ib, Ic:: 310mV @ 210mA, 4.2A

Current - Collector Cutoff (Max):: 100nA (ICBO)

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

Power - Max:: 600 mW

Frequency - Transition:: 130MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-89

PBSS304PX-QX FAQ

1.How can I place an order for PBSS304PX-QX through Aetrix?

Please submit a Request for Quotation (RFQ) for PBSS304PX-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 PBSS304PX-QX reliable?

The price and inventory of PBSS304PX-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS304PX-QX is usually 5 days.

3.What payment methods are accepted for PBSS304PX-QX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS304PX-QX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PBSS304PX-QX?

PBSS304PX-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBSS304PX-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 PBSS304PX-QX?

For technical support, including PBSS304PX-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS304PX-QX requirements.

6.How does Aetrix verify that PBSS304PX-QX is sourced from the original manufacturer or authorized distributors?

All PBSS304PX-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 PBSS304PX-QX meets industry standards.

7.What is the process for return or replacement of PBSS304PX-QX?

All PBSS304PX-QX units undergo pre-shipment inspection (PSI). If there is an issue with PBSS304PX-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 PBSS304PX-QX part is unused and in its original packaging.

Return procedure for PBSS304PX-QX:

1.Submit a request within 90 days.

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

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