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

Nexperia USA Inc. PBSS306PZ-QF

Name: PBSS306PZ-QF
Brand: Nexperia USA Inc.
SKU: PBSS306PZ-QF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PBSS306PZ-QF

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: TO-261-4, TO-261AA

Datasheet:: PBSS306PZ-QF.pdf

Description:: TRANS PNP 100V 4.1A SOT-223

Quantity:: RFQ Add To RFQ list

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Product details

Overview

PBSS306PZ-QF from Nexperia is a PNP low V_CEsat Breakthrough In Small Signal (BISS) transistor in SOT223 (SC-73) package, rated for 100 V V_CEO, 4.1 A continuous collector current, and 56 mΩ typical R_CEsat at −4 A/−400 mA drive. It serves as a high-voltage power switch in automotive motor control and DC-DC conversion circuits where thermal efficiency and PCB space savings are critical.

For engineers reviewing the PBSS306PZ-QF datasheet, PBSS306PZ-QF pinout, PBSS306PZ-QF application, or PBSS306PZ-QF equivalent, key selection criteria include its AEC-Q101 qualification, low saturation resistance under high-current switching, thermal resistance down to 63 K/W on ceramic PCB, and verified performance in high-voltage gate driving and motor control topologies.

Technical Context

This PNP BISS transistor uses an optimized epitaxial structure to achieve low V_CEsat (−225 mV typ. at −4 A) while maintaining high h_FE (25–40 at −4 A) and fast switching (t_on = 200 ns, t_off = 325 ns). Its dual-collector pin configuration (Pins 2 & 4) enables enhanced thermal dissipation via large copper pads.

The device operates with V_EB ≤ −5 V, supports peak currents up to −8.2 A, and delivers stable gain across −55 °C to +150 °C junction temperature range. Its R_CEsat remains below 80 mΩ even at T_j = 150 °C, enabling reliable operation in thermally constrained automotive modules.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−100 V - Withstands 100 V collector-emitter blocking voltage in open-base condition, suitable for 48 V and 60 V automotive bus systems.
I_C	−4.1 A - Continuous DC collector current rating defines maximum steady-state load switching capability without derating at 25 °C ambient.
R_CEsat	56 mΩ typ. - Low saturation resistance minimizes conduction loss (P_cond ≈ I² × R) and heat generation in high-current switching nodes.
h_FE	25–40 @ −4 A - Sustains usable DC current gain at full rated current, enabling direct TTL/CMOS-compatible base drive without external amplification.
t_off	325 ns - Fast turn-off time supports PWM frequencies above 1 MHz in high-efficiency DC-DC converters and motor phase control.
T_j max	+150 °C - Maximum junction temperature allows operation in under-hood automotive environments with minimal heatsinking.
AEC-Q101	Qualified - Meets stress test requirements for discrete semiconductors in automotive applications, including temperature cycling and HTRB.

Pinout & Package

SOT223 (SC-73) plastic surface-mounted package with increased heatsink area; 4 leads, Pin 1 = Base, Pins 2 & 4 = Collector (internally connected), Pin 3 = Emitter. Dual-collector terminals enable symmetric PCB layout and improved thermal path to copper pour.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control input node requiring −400 mA pulsed drive to achieve full saturation at −4 A collector current.
2 & 4	Collector	Internally tied high-current output terminals; both must be soldered to ≥6 cm² copper pad for 1.7 W power dissipation capability.
3	Emitter	Reference terminal for load return path; connects to system ground or negative rail in high-side switch configurations.

Key Features

Feature	Design Value
Low V_CEsat	−225 mV typ. at −4 A ensures <0.9 W conduction loss, reducing thermal stress vs. conventional PNP transistors with >500 mV drop.
AEC-Q101 qualification	Validated for automotive under-hood use including temperature cycling, HTRB, and ESD testing per JESD22-A114.
High I_C/I_CM	−4.1 A continuous / −8.2 A pulsed rating supports high-power fan, pump, and solenoid drivers without paralleling devices.
Thermal resistance	R_th(j-a) = 63 K/W on Al₂O₃ ceramic PCB enables 2 W dissipation within 150 °C T_j limit at 75 °C ambient.
Small PCB footprint	SOT223 outline occupies ~30% less board area than TO-220 equivalents while delivering comparable current handling.

Applications

Automotive HVAC Blower Control

Industrial 48 V DC-DC Converter

Use Scenario: Controlling 120 W blower motor in passenger compartment HVAC system using PWM-driven high-side PNP switch.

IC Role / Device Role / Timing Role: High-voltage PNP power switch operating at 20 kHz PWM frequency, sourcing current from 48 V battery rail to motor winding.

Use Value: Low R_CEsat reduces average conduction loss by 65% vs. legacy PNP devices, enabling smaller heatsink and quieter operation at full speed.

Use Scenario: Synchronous rectifier driver in isolated flyback converter stepping 48 V down to 12 V for vehicle infotainment supply.

IC Role / Device Role / Timing Role: Gate driver for high-side N-channel MOSFET, providing fast, low-loss level-shifted turn-on pulse with precise timing control.

Use Value: 325 ns t_off and −230 mV V_CEsat minimize dead-time losses and improve converter efficiency by 1.8% at 5 A load.

Truck ABS Solenoid Driver

EV Onboard Charger Precharge Circuit

Use Scenario: Driving 24 V, 3 A ABS hydraulic solenoid valves in heavy-duty braking systems with strict EMC and reliability requirements.

IC Role / Device Role / Timing Role: Robust high-current switch interfacing microcontroller GPIO to inductive solenoid load, featuring integrated flyback protection support.

Use Value: AEC-Q101 qualification and 150 °C T_j rating ensure functional safety compliance and 15-year field life in vibration-prone chassis environments.

Use Scenario: Precharging high-voltage capacitor bank (400 V) in EV onboard charger before main contactor closure to prevent inrush current damage.

IC Role / Device Role / Timing Role: Precision-controlled high-voltage current limiter using linear mode operation during precharge ramp-up phase.

Use Value: Stable h_FE across temperature and low V_CEsat enable accurate 500 mA precharge current regulation with ±3% tolerance over −40 to +105 °C.

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
PN2222A	V_CEO = −40 V, I_C = −800 mA, R_CEsat > 500 mΩ - insufficient voltage/current rating for 48 V+ systems.	Only suitable for low-voltage signal switching; cannot replace PBSS306PZ-QF in automotive power stages.	Select only for sub-24 V logic-level interface tasks where thermal and voltage margins are non-critical.
BC807-40	V_CEO = −45 V, I_C = −500 mA, h_FE > 250 - lacks AEC-Q101, higher V_CEsat, and insufficient current for motor loads.	Targeted at general-purpose amplification, not high-current switching; no thermal design support for >1 W dissipation.	Use only in non-automotive consumer electronics with ambient <70 °C and peak load <300 mA.

Compared with PN2222A and BC807-40, PBSS306PZ-QF uniquely combines 100 V blocking, 4.1 A current, AEC-Q101 qualification, and 56 mΩ R_CEsat-enabling single-device replacement of multi-transistor arrays in automotive power stages while reducing BOM count and thermal management complexity.

Availability

PBSS306PZ-QF is available at Aetrix Electronics and suitable for automotive HVAC control, industrial 48 V DC-DC conversion, and EV precharge circuits requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for PBSS306PZ-QF 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, high-reliability discrete and logic devices for automotive, industrial, and computing markets.

PBSS306PZ-QF belongs to Nexperia's BISS transistor product line, engineered specifically for high-voltage, high-current switching in thermally demanding automotive power systems where low saturation loss and AEC-Q101 compliance are mandatory.

FAQ

What is the maximum allowable base current for continuous operation?

The absolute maximum base current is not explicitly specified, but the datasheet confirms −400 mA pulsed base drive (tp ≤ 300 µs, δ ≤ 0.02) achieves full saturation at −4 A collector current. For continuous DC operation, base current must be limited to maintain junction temperature ≤150 °C-typically ≤−100 mA with adequate PCB copper area and ambient <70 °C.

Can PBSS306PZ-QF be used in linear (non-switching) regulator applications?

Yes-it supports linear-mode operation with V_CE controlled between 0.5 V and 10 V, provided power dissipation stays within derated limits (e.g., ≤0.7 W on standard FR4). Its stable h_FE across current and temperature enables predictable current-source behavior, though thermal design must account for R_th(j-a) = 179 K/W in free air.

Is the SOT223 package lead-free and RoHS compliant?

Yes-PBSS306PZ-QF is manufactured using lead-free (Pb-free) terminations and complies with EU RoHS Directive 2011/65/EU and China RoHS. The device meets JEDEC J-STD-020 moisture sensitivity level (MSL) 1, allowing unlimited floor life at ≤30 °C/85% RH.

How does the dual-collector pin configuration affect PCB layout?

Pins 2 and 4 are internally connected collectors and must both be routed to the same high-current copper pour-ideally ≥6 cm²-to achieve the 1.7 W power dissipation rating. Splitting them or routing separately degrades thermal performance and risks localized overheating; symmetric placement improves current sharing and mechanical stability during thermal cycling.

PBSS306PZ-QF Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-261-4, TO-261AA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 4.1 A

Voltage - Collector Emitter Breakdown (Max):: 100 V

Vce Saturation (Max) @ Ib, Ic:: 325mV @ 410mA, 4.1A

Current - Collector Cutoff (Max):: 100nA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 200 @ 500mA, 2V

Power - Max:: 700 mW

Frequency - Transition:: 100MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223

PBSS306PZ-QF FAQ

1.How can I place an order for PBSS306PZ-QF through Aetrix?

Please submit a Request for Quotation (RFQ) for PBSS306PZ-QF 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 PBSS306PZ-QF reliable?

The price and inventory of PBSS306PZ-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS306PZ-QF is usually 5 days.

3.What payment methods are accepted for PBSS306PZ-QF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS306PZ-QF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PBSS306PZ-QF?

PBSS306PZ-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBSS306PZ-QF 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 PBSS306PZ-QF?

For technical support, including PBSS306PZ-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS306PZ-QF requirements.

6.How does Aetrix verify that PBSS306PZ-QF is sourced from the original manufacturer or authorized distributors?

All PBSS306PZ-QF 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 PBSS306PZ-QF meets industry standards.

7.What is the process for return or replacement of PBSS306PZ-QF?

All PBSS306PZ-QF units undergo pre-shipment inspection (PSI). If there is an issue with PBSS306PZ-QF, 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 PBSS306PZ-QF part is unused and in its original packaging.

Return procedure for PBSS306PZ-QF:

1.Submit a request within 90 days.

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

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