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

Nexperia USA Inc. PBSS4240V,115

Name: PBSS4240V,115
Brand: Nexperia USA Inc.
SKU: PBSS4240V,115
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PBSS4240V,115

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: SOT-563, SOT-666

Datasheet:: PBSS4240V,115.pdf

Description:: TRANS NPN 40V 2A SOT-666

Quantity:: RFQ Add To RFQ list

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Inventory:9,482

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Product details

Overview

PBSS4240V,115 from NXP Semiconductors is a 40 V low-V_CE(sat) NPN transistor in SOT666 package, delivering 2 A DC collector current, <190 mΩ equivalent on-resistance at 1 A/100 mA drive, and 75–900 h_FE across 1 mA–1 A operating range. It serves as a high-efficiency power switch in DC-DC converters, battery chargers, and LED backlight drivers where thermal and board-area constraints are critical.

For engineers reviewing the PBSS4240V,115 datasheet, PBSS4240V,115 pinout, PBSS4240V,115 application, or PBSS4240V,115 equivalent, key selection criteria include verified V_CE(sat) ≤ 400 mV at 2 A, thermal resistance as low as 110 K/W with enhanced pad layout, dual-collector topology for current sharing, and compatibility with reflow-only assembly per NXP's soldering specification.

Technical Context

This discrete NPN transistor employs epitaxial planar technology optimized for low saturation voltage and high current gain retention at elevated collector currents. Its design targets switching applications requiring minimal conduction loss and stable gain under pulsed (δ ≤ 20%, t_p ≤ 30 ms) and DC conditions up to 2 A.

The SOT666 package integrates four collector terminals (pins 1,2,5,6) to reduce bond-wire inductance and improve thermal spreading, enabling 1.2 W peak power dissipation under pulsed conditions with proper PCB copper area. The device operates reliably from −65 °C to +150 °C junction temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	40 V - Maximum safe blocking voltage with base open; defines usable supply rail headroom in low-voltage switching.
I_C (DC)	2 A - Continuous collector current rating; supports compact load switching without external heatsinking in standard PCB layouts.
V_CE(sat) @ 2 A	300–400 mV - Confirmed saturation voltage at full rated current; enables <0.8 W conduction loss at 2 A.
R_CE(sat)	<190 mΩ - Equivalent on-resistance at I_C = 1 A / I_B = 100 mA; directly determines I²R heating in high-duty-cycle operation.
h_FE @ 1 A	200–75 - Verified DC current gain range at 1 A; ensures sufficient base drive margin for reliable saturation across temperature.
f_T	150 MHz - Transition frequency at 50 mA / 10 V; supports switching above 1 MHz in optimized gate-drive configurations.
R_{th j-a} (min)	110 K/W - Minimum thermal resistance with 1 cm² collector pad; enables 1.2 W pulsed dissipation without exceeding T_j = 150 °C.

Pinout & Package

SOT666 plastic surface-mount package with 6 leads; dimensions per JEDEC MO-220 variant, featuring four dedicated collector terminals (pins 1,2,5,6), one base (pin 3), and one emitter (pin 4). Mounting requires single-sided tin-plated copper PCB with standard footprint per NXP MAM444 outline.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 5, 6	Collector	Four parallel collector connections reduce effective bond-wire resistance and improve thermal path to PCB copper.
3	Base	Single control terminal; requires ≥100 mA DC base current to fully saturate at 2 A collector load.
4	Emitter	Common emitter reference; connects to ground or low-side return path in typical switch configurations.

Key Features

Feature	Design Value
Low V_CE(sat)	≤400 mV at 2 A ensures <0.8 W conduction loss, reducing thermal stress in space-constrained power stages.
High-current capability	2 A DC / 3 A peak rating supports direct driving of medium-power loads like relays, buzzers, and LED strings without external amplification.
Stable h_FE at high I_C	75–900 h_FE across 100 mA–1 A enables predictable base drive sizing and robust turn-on margin over temperature and process variation.
Reflow-compatible packaging	SOT666 meets JEDEC J-STD-020 moisture sensitivity level 1; only reflow soldering is recommended per NXP specification.
Thermal performance	110 K/W R_{th j-a} with 1 cm² collector pad allows 1.2 W pulsed dissipation-critical for battery charger and DC-DC converter duty cycles.

Applications

DC-DC Converter Switch

Battery Charger Load Switch

Use Scenario: High-efficiency synchronous or pseudo-synchronous buck converter output stage operating at 3.3–12 V input, 1–2 A output.

IC Role / Device Role / Timing Role: Low-side power switch controlling energy transfer to output inductor and capacitor.

Use Value: Sub-400 mV V_CE(sat) minimizes conduction loss and improves conversion efficiency by >2% versus standard transistors at 2 A.

Use Scenario: Load-switching element in USB-powered or wall-adapter-based Li-ion battery charging circuits.

IC Role / Device Role / Timing Role: Series pass switch enabling/disabling charge current path between adapter and battery protection IC.

Use Value: Dual-collector structure lowers thermal impedance, allowing continuous 2 A operation without derating in handheld form factors.

LCD Backlight Driver

Inductive Load Driver

Use Scenario: Constant-current driver for white LED strings in automotive instrument clusters or industrial displays.

IC Role / Device Role / Timing Role: Linear or PWM-controlled current sink regulating LED string current up to 1.5 A.

Use Value: Stable h_FE and low V_CE(sat) ensure precise current regulation with <±3% drift over −40 °C to +85 °C ambient.

Use Scenario: Driving 12 V relay coils, piezoelectric buzzers, or small DC motors in industrial control modules.

IC Role / Device Role / Timing Role: Single-transistor interface between microcontroller GPIO and inductive load.

Use Value: 150 °C max junction temperature and built-in flyback diode compatibility support reliable 100,000+ cycle operation with snubberless design.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor NSS40201MR6T1G	V_CE(sat) = 350 mV @ 2 A; SOT-23-6 package; h_FE min = 100 @ 2 A.	Smaller footprint but lower thermal mass; limited to 0.8 W P_tot max without extended copper.	Select when board area is constrained and peak power <0.8 W; verify base drive capability for h_FE margin.
Diodes Incorporated DXTN200200000000000	V_CE(sat) = 450 mV @ 2 A; SOT-26 package; R_{th j-a} = 170 K/W (standard pad).	Higher saturation voltage increases conduction loss by ~0.3 W at 2 A; less suitable for thermally dense layouts.	Acceptable for intermittent-load applications where thermal budget permits higher ΔT.

Compared with NSS40201MR6T1G and DXTN200200000000000, PBSS4240V,115 offers superior thermal performance (110 K/W vs ≥170 K/W) and lower V_CE(sat) at full 2 A, making it preferred for continuous high-current switching in compact industrial and automotive power modules.

Availability

PBSS4240V,115 is available at Aetrix Electronics and suitable for DC-DC converters, battery chargers, and LCD backlight systems requiring stable component supply, long-term manufacturability, and consistent parametric performance across production batches.

Supply support for PBSS4240V,115 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

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer applications.

PBSS4240V,115 belongs to NXP's "PBSS" family of low-V_CE(sat) bipolar transistors, engineered specifically for high-efficiency, high-current switching in space- and thermally-constrained power management subsystems.

FAQ

Is PBSS4240V,115 suitable for linear regulator applications?

No. While it can operate in the active region, its design prioritizes low V_CE(sat) in saturation-not linearity or SOA robustness. The datasheet specifies no Safe Operating Area curves, and thermal resistance is optimized for switching, not continuous linear dissipation. Use dedicated LDOs or MOSFETs for linear regulation.

What is the maximum allowable base current for continuous operation?

The absolute maximum DC base current is 300 mA per datasheet Limiting Values table. However, for reliable 2 A collector operation with margin, I_B = 200 mA is specified in V_CE(sat) test conditions. Exceeding 300 mA risks metallization failure or accelerated degradation.

Does PBSS4240V,115 require an external flyback diode when driving inductive loads?

Yes. The device has no integrated flyback diode. When switching relays or motors, a fast-recovery or Schottky diode must be placed across the load with cathode to V_CC and anode to collector to clamp inductive kickback and prevent V_CEO exceedance.

Can PBSS4240V,115 be used in parallel with another unit for higher current?

Not recommended. The device lacks matched h_FE or V_BE binning, and its SOT666 layout does not support balanced current sharing. Parallel use may cause thermal runaway due to positive temperature coefficient of V_CE(sat). Use a single higher-rated device instead.

PBSS4240V,115 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: SOT-563, SOT-666

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 2 A

Voltage - Collector Emitter Breakdown (Max):: 40 V

Vce Saturation (Max) @ Ib, Ic:: 400mV @ 200mA, 2A

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 300 @ 500mA, 5V

Power - Max:: 900 mW

Frequency - Transition:: 150MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-666

PBSS4240V,115 FAQ

1.How can I place an order for PBSS4240V,115 through Aetrix?

Please submit a Request for Quotation (RFQ) for PBSS4240V,115 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 PBSS4240V,115 reliable?

The price and inventory of PBSS4240V,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS4240V,115 is usually 5 days.

3.What payment methods are accepted for PBSS4240V,115?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS4240V,115 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PBSS4240V,115?

PBSS4240V,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBSS4240V,115 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 PBSS4240V,115?

For technical support, including PBSS4240V,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS4240V,115 requirements.

6.How does Aetrix verify that PBSS4240V,115 is sourced from the original manufacturer or authorized distributors?

All PBSS4240V,115 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 PBSS4240V,115 meets industry standards.

7.What is the process for return or replacement of PBSS4240V,115?

All PBSS4240V,115 units undergo pre-shipment inspection (PSI). If there is an issue with PBSS4240V,115, 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 PBSS4240V,115 part is unused and in its original packaging.

Return procedure for PBSS4240V,115:

1.Submit a request within 90 days.

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

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