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

Nexperia USA Inc. PBSS302NZ-QF

Name: PBSS302NZ-QF
Brand: Nexperia USA Inc.
SKU: PBSS302NZ-QF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PBSS302NZ-QF

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: -

Datasheet:: PBSS302NZ-QF.pdf

Description:: PBSS302NZ-Q/SOT223/SC-73

Quantity:: RFQ Add To RFQ list

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Inventory:4,000

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Product details

Overview

PBSS302NZ-QF from Nexperia is a 20 V, 5.8 A NPN low V_CE(sat) transistor in SOT223 (SC-73) package, designed as a high-efficiency power switch for automotive-grade DC-DC converters and MOSFET gate drivers. It delivers R_CE(sat) = 30–43 mΩ at I_C = 4 A / I_B = 200 mA and supports peak current up to 11.6 A, enabling compact, thermally robust switching in motor control and charging circuits.

For engineers reviewing the PBSS302NZ-QF datasheet, PBSS302NZ-QF pinout, PBSS302NZ-QF application, or PBSS302NZ-QF equivalent, this device is selected for low-loss switching where V_CE(sat) < 250 mV at 5.8 A, AEC-Q101 qualification, and thermal resistance as low as 15 K/W (junction-to-solder point) are critical design requirements.

Technical Context

This NPN transistor uses epitaxial planar die construction with optimized emitter-base geometry to achieve high h_FE (200–350 at I_C = 7 A) and low saturation voltage across wide temperature range (−55 °C to 150 °C). Its dual-collector pin configuration (Pins 2 & 4) enhances current handling and thermal spreading on PCB.

The device operates with base-emitter turn-on voltage of 0.75–0.85 V and exhibits fast switching: t_on = 55 ns, t_off = 335 ns under 12.5 V/3 A test conditions. Its f_T = 140 MHz supports stable operation in high-frequency PWM applications up to several hundred kHz.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	20 V - Maximum allowable collector-emitter voltage with open base; defines safe blocking capability in 12 V automotive systems.
I_C	5.8 A continuous - Sustained DC load current rating; enables direct drive of small motors or high-side switches without external heatsinking.
R_CE(sat)	30–43 mΩ at I_C = 4 A / I_B = 200 mA - Low conduction loss reduces power dissipation to ≤0.7 W at full rated current.
h_FE	200–350 at I_C = 7 A - High DC current gain allows efficient base drive with modest IB, reducing driver circuit complexity.
t_off	335 ns - Fast turn-off time minimizes switching losses in high-frequency DC-DC topologies operating above 100 kHz.
R_th(j-sp)	15 K/W - Junction-to-solder-point thermal resistance enables direct thermal coupling to large copper pour, supporting 2 W dissipation on ceramic PCB.

Pinout & Package

SOT223 (SC-73) plastic surface-mounted package with 4 leads, 2.3 mm pitch, and integrated heatsink pad (Pin 2 & Pin 4 both connected to collector); body dimensions 6.5 mm × 3.5 mm × 1.65 mm; standard footprint per Fig. 16 (reflow).

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control input requiring ~290 mA base drive for full 5.8 A collector conduction; low V_BE(sat) (170–250 mV) ensures minimal base power loss.
2	Collector	Main high-current output terminal; electrically tied to Pin 4 for doubled current path and improved thermal conduction to PCB copper.
3	Emiter	Reference node for load return path; connects directly to ground plane in low-side switch configurations.
4	Collector	Secondary collector terminal; parallel connection with Pin 2 reduces effective package inductance and improves thermal spreading across solder land.

Key Features

Feature	Design Value
AEC-Q101 qualified	Qualified for automotive applications per Stress Test Qualification for Discrete Semiconductors; supports 15-year vehicle lifecycle reliability.
Low V_CE(sat)	170–250 mV at I_C = 5.8 A / I_B = 290 mA - Reduces conduction loss by >40% vs. standard bipolar transistors, lowering thermal stress in space-constrained modules.
Dual-collector SOT223	Pins 2 & 4 both collector - Enables 11.6 A peak pulse current handling and lowers effective R_th(j-a) to 63 K/W on ceramic PCB.
High h_FE at high I_C	200–350 at I_C = 7 A - Allows use of low-power microcontroller GPIOs or logic-level drivers without external buffer stages.
Fast switching	t_on = 55 ns, t_off = 335 ns - Supports PWM frequencies up to 500 kHz while maintaining <5% dead-time loss in synchronous rectifier designs.

Applications

DC-DC Buck Converter

MOSFET Gate Driver

Use Scenario: Primary switch in 12 V → 5 V/3.3 V automotive buck converter delivering up to 25 W.

IC Role / Device Role / Timing Role: NPN power switch controlling energy transfer into output inductor; operates at 250 kHz with 50% duty cycle.

Use Value: Low R_CE(sat) limits conduction loss to <0.5 W, eliminating need for heatsink and enabling 12 mm × 12 mm PCB area reduction vs. TO-252 alternatives.

Use Scenario: Level-shifting, high-current gate driver for 40 V N-channel MOSFET in BLDC motor inverter half-bridge.

IC Role / Device Role / Timing Role: Saturated switch sourcing 2 A peak gate charge current during MOSFET turn-on phase.

Use Value: 335 ns t_off ensures clean gate discharge, preventing shoot-through; dual-collector layout sustains 2 A pulses without thermal derating.

Automotive Fan Control

USB-C Charging Circuit

Use Scenario: Low-side switch controlling 12 V cooling fan (I_load = 4.2 A) in engine bay with ambient up to 105 °C.

IC Role / Device Role / Timing Role: PWM-controlled power stage modulating fan speed via 20 kHz carrier; operates in linear region only during soft-start.

Use Value: AEC-Q101 qualification and 150 °C T_j rating ensure reliable operation; R_CE(sat) stability over temperature avoids speed drift.

Use Scenario: Load switch enabling/disabling 5 V/3 A USB-C power path in infotainment head unit.

IC Role / Device Role / Timing Role: High-side or low-side power switch with controlled inrush limiting via base resistor network.

Use Value: 5.8 A I_C rating provides 2× safety margin over 3 A load; V_CE(sat) < 250 mV keeps voltage drop below 100 mV, preserving bus regulation.

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 NSS30201LT1G	20 V, 3.5 A, R_CE(sat) = 45–65 mΩ; SOT-23 package; no dual-collector configuration.	Limited to ≤15 W loads; unsuitable for >4 A continuous or high-peak-current motor drives.	Select when board space is constrained and thermal budget allows higher R_CE(sat); not recommended for automotive under-hood use.
Diodes Incorporated DXT30201Q-7	20 V, 5 A, R_CE(sat) = 35–50 mΩ; SOT223 package; AEC-Q101 qualified but no dual-collector pins.	Lower peak current (10 A vs. 11.6 A); junction-to-ambient R_th 74 K/W on FR4 - requires larger copper area for same power.	Acceptable for non-critical 12 V systems where dual-collector thermal advantage is not required; verify t_off (420 ns) meets timing budget.

Compared with NSS30201LT1G and DXT30201Q-7, PBSS302NZ-QF delivers superior thermal performance via dual-collector SOT223, enabling higher sustained current and tighter thermal margins in automotive power modules without increasing PCB area.

Availability

PBSS302NZ-QF is available at Aetrix Electronics and suitable for automotive fan control, USB-C charging circuits, DC-DC buck converters, and MOSFET gate driving requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for PBSS302NZ-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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.

PBSS302NZ-QF belongs to Nexperia's "Low V_CE(sat) Transistor" product line, engineered specifically for efficiency-critical power switching in 12 V automotive subsystems and industrial DC-DC applications.

FAQ

What is the maximum continuous collector current for PBSS302NZ-QF at 100 °C ambient?

At T_amb = 100 °C on an FR4 PCB with standard footprint, the device is rated for 3.2 A continuous collector current, derived from its 2 W P_tot limit and thermal resistance curve (Fig. 1). Derating follows linear 17.9 mW/°C slope above 25 °C ambient.

Can PBSS302NZ-QF be used in high-side switch configurations?

Yes - it functions as a high-side NPN switch when base is driven 0.8–1.05 V above emitter potential. Required base drive voltage is 1.05 V max at I_C = 4 A, so a dedicated charge-pump or level-shifted driver is needed for 12 V rail operation.

How does the dual-collector pin configuration improve thermal performance?

Pins 2 and 4 are internally shorted to the collector die and provide two independent solder paths to PCB copper. This halves effective thermal resistance from junction to solder point (R_th(j-sp) = 15 K/W), allowing 2× heat extraction versus single-collector SOT223 devices under identical layout.

Is PBSS302NZ-QF compatible with lead-free reflow profiles?

Yes - it is qualified for JEDEC J-STD-020D-compliant lead-free reflow with peak temperature up to 260 °C. The SC-73 package outline (Fig. 15) specifies 6.15 mm × 3.85 mm reflow solder land pattern with 0.3 mm solder mask clearance for optimal wetting and void control.

PBSS302NZ-QF 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:: -

PBSS302NZ-QF FAQ

1.How can I place an order for PBSS302NZ-QF through Aetrix?

Please submit a Request for Quotation (RFQ) for PBSS302NZ-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 PBSS302NZ-QF reliable?

The price and inventory of PBSS302NZ-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS302NZ-QF is usually 5 days.

3.What payment methods are accepted for PBSS302NZ-QF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS302NZ-QF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PBSS302NZ-QF?

PBSS302NZ-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBSS302NZ-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 PBSS302NZ-QF?

For technical support, including PBSS302NZ-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS302NZ-QF requirements.

6.How does Aetrix verify that PBSS302NZ-QF is sourced from the original manufacturer or authorized distributors?

All PBSS302NZ-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 PBSS302NZ-QF meets industry standards.

7.What is the process for return or replacement of PBSS302NZ-QF?

All PBSS302NZ-QF units undergo pre-shipment inspection (PSI). If there is an issue with PBSS302NZ-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 PBSS302NZ-QF part is unused and in its original packaging.

Return procedure for PBSS302NZ-QF:

1.Submit a request within 90 days.

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

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