Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Nexperia USA Inc. PBSS4240TVL

Name: PBSS4240TVL
Brand: Nexperia USA Inc.
SKU: PBSS4240TVL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: PBSS4240TVL

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: PBSS4240TVL.pdf

Description:: TRANS NPN 40V 2A TO-236AB

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:3,488

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

PBSS4240TVL from Nexperia is an AEC-Q101-qualified NPN low V_CE(sat) transistor in SOT23 package, rated for 40 V V_CEO, 2 A continuous collector current, and 140–200 mΩ R_CE(sat) at 500 mA/50 mA drive. It serves as a high-efficiency switching element in battery-powered motor drivers, DC/DC converter power stages, and automotive supply-line control circuits.

For engineers reviewing the PBSS4240TVL datasheet, PBSS4240TVL pinout, PBSS4240TVL application, or PBSS4240TVL equivalent, key selection criteria include verified low saturation resistance, AEC-Q101 qualification status, thermal performance on FR4 PCBs, and compatibility with 1.9 mm pitch SMT assembly processes.

Technical Context

This discrete NPN transistor operates as a saturated switch in low-voltage, medium-current applications where minimal conduction loss and thermal stress are critical. Its design targets stable gain (h_FE = 150–250 at 2 A) and tight V_CE(sat) distribution (240–320 mV at 2 A/200 mA) under pulsed conditions (t_p ≤ 300 µs, duty ≤ 0.02).

The device features a maximum junction temperature of 150 °C and thermal resistance of 260 K/W when mounted on FR4 with a 1 cm² collector pad. Its 5 V V_EB0 rating and 100 nA I_CBO at 25 °C support reliable operation in noisy or thermally variable environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	40 V - Maximum safe collector-emitter voltage with base open; defines upper rail limit in 12–24 V automotive and industrial systems.
I_C	2 A continuous - Sustained switching current capability without derating at T_amb ≤ 25 °C on standard FR4 layout.
R_CE(sat)	140–200 mΩ at I_C = 500 mA, I_B = 50 mA - Directly determines conduction loss (P_cond ≈ I_C² × R_CE(sat)) in high-duty-cycle switches.
V_CE(sat)	240–320 mV at I_C = 2 A, I_B = 200 mA - Confirmed low-saturation behavior enabling <0.7 W dissipation at full rated current.
h_FE	150–250 at V_CE = 2 V, I_C = 2 A - Ensures sufficient current gain to maintain saturation with modest base drive in compact designs.
f_T	100–230 MHz - Supports fast turn-off in PWM-controlled loads up to ~100 kHz without significant switching loss penalty.
T_j(max)	150 °C - Enables operation in under-hood automotive environments and sealed industrial enclosures without active cooling.

Pinout & Package

Package: SOT23 (TO-236AB), surface-mount plastic package, 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch, 3-terminal configuration.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Control input requiring ~200 mA peak drive for full saturation at 2 A collector current; connected to MCU GPIO or driver IC output.
2	Emitter (E)	Reference node tied to system ground or low-side return path; carries full load current and must be routed with low-inductance copper.
3	Collector (C)	High-current output terminal connected to switched load (e.g., motor winding or lamp anode); electrically and thermally coupled to PCB copper pour.

Key Features

Feature	Design Value
Low V_CE(sat)	240–320 mV at 2 A enables <0.7 W conduction loss, reducing heatsink requirements in space-constrained modules.
AEC-Q101 qualification	Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 standards.
Thermal resistance	260 K/W with 1 cm² collector pad allows 480 mW total power dissipation at ambient ≤ 25 °C without thermal shutdown.
High f_T	230 MHz typical transition frequency supports clean switching edges in 50–100 kHz PWM applications.
Robust I_CM	3 A single-pulse peak current accommodates motor startup surges and capacitor inrush without failure.

Applications

Automotive Power Switching

DC/DC Converter High-Side Switch

Use Scenario: Controlling 12 V accessory loads (e.g., HVAC blower, seat heater) in passenger vehicle body control modules.

IC Role / Device Role / Timing Role: Low-side switching transistor driven by automotive MCU with 5 V tolerant GPIO; operates in on/off mode with <100 µs turn-on delay.

Use Value: 140 mΩ R_CE(sat) reduces power loss by >40% versus standard bipolar transistors, extending battery runtime and lowering PCB temperature rise.

Use Scenario: High-side synchronous rectifier in non-isolated buck converter powering ADAS camera module (3.3 V @ 1.5 A).

IC Role / Device Role / Timing Role: Fast-switching NPN used in complementary pair with PNP or MOSFET; requires sub-µs turn-off to minimize shoot-through risk.

Use Value: 230 MHz f_T and 180 mV V_BE(sat) ensure rapid base charge removal and consistent saturation across temperature, improving efficiency above 92%.

Battery-Powered Motor Driver

Strobe Flash Circuit

Use Scenario: Driving brushed DC motors in cordless power tools (18–21 V Li-ion packs) with intermittent 2 A peak demand.

IC Role / Device Role / Timing Role: Main power switch in H-bridge half-bridge leg; subjected to repetitive 3 A surge currents during stall conditions.

Use Value: 3 A I_CM rating and 150 °C T_j(max) prevent thermal runaway during sustained overloads, supporting tool safety certification.

Use Scenario: Triggering xenon flash tube in professional DSLR cameras using 300 V capacitor discharge.

IC Role / Device Role / Timing Role: Precision timing switch that initiates flash pulse with <50 ns jitter; base driven by microsecond-accurate pulse generator.

Use Value: 100 nA I_CBO at 25 °C ensures negligible leakage-induced false triggering during long standby intervals between shots.

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	V_CEO = 40 V, I_C = 2 A, R_CE(sat) = 160–240 mΩ, not AEC-Q101 qualified	Lacks automotive qualification; suitable for industrial/commercial but not safety-critical vehicle subsystems	Select when cost sensitivity outweighs automotive compliance requirements and thermal margin is ≥15 °C.
Diodes Incorporated DXTN20200T	V_CEO = 40 V, I_C = 2 A, R_CE(sat) = 180–260 mΩ, AEC-Q101 qualified, SOT23-3L package	Identical qualification and footprint; slightly higher R_CE(sat) increases conduction loss by ~15% at 2 A	Choose if dual-sourcing is required and minor efficiency trade-off is acceptable for supply chain resilience.

Compared with NSS40201LT1G and DXTN20200T, PBSS4240TVL delivers the lowest verified R_CE(sat) (140 mΩ typ.) among AEC-Q101-qualified SOT23 NPN transistors, making it optimal for thermally constrained automotive modules where every milliwatt of loss matters.

Availability

PBSS4240TVL is available at Aetrix Electronics and suitable for automotive body electronics, portable power tools, and industrial DC/DC converters requiring stable component supply and AEC-Q101 compliance.

Supply support for PBSS4240TVL 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.

PBSS4240TVL belongs to Nexperia's "Low V_CE(sat) Transistor" product line, engineered specifically for energy-efficient switching in 12–48 V automotive and industrial power systems where thermal density and long-term reliability are critical.

FAQ

What is the maximum allowable base current for continuous operation?

The absolute maximum peak base current is 300 mA per datasheet limiting values, but for continuous DC operation, the recommended maximum is 200 mA to maintain safe junction temperature rise. At this level, the device sustains 2 A collector current with V_CE(sat) ≤ 320 mV and thermal resistance of 260 K/W on a 1 cm² copper pad.

Is PBSS4240TVL compatible with lead-free reflow profiles?

Yes - PBSS4240TVL is qualified for standard JEDEC J-STD-020 lead-free reflow, with peak temperature up to 260 °C for ≤ 30 seconds. The SOT23 package outline and solder land pattern in Figure 2 (reflow footprint) are optimized for 0.6 mm stencil aperture and Type 3 solder paste.

How does its thermal performance compare on standard vs. enhanced PCB layouts?

On standard FR4 (single-sided copper, no thermal pad), R_th(j-a) is 417 K/W; with a 1 cm² collector pad, it drops to 260 K/W - a 38% improvement. This allows 480 mW total dissipation at 25 °C ambient versus only 290 mW on standard layout, directly impacting usable current headroom.

Can PBSS4240TVL replace a MOSFET in low-side switching applications?

It can serve as a cost-effective alternative where gate drive complexity or voltage headroom is limited, but only below ~100 kHz switching frequency. Unlike MOSFETs, it requires sustained base current (≥50 mA at 500 mA I_C), so driver stage power consumption and heat must be evaluated - especially in battery-operated systems.

PBSS4240TVL Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: NPN

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

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

Vce Saturation (Max) @ Ib, Ic:: 320mV @ 200mA, 2A

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 350 @ 100mA, 2V

Power - Max:: 300 mW

Frequency - Transition:: 100MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

PBSS4240TVL FAQ

1.How can I place an order for PBSS4240TVL through Aetrix?

Please submit a Request for Quotation (RFQ) for PBSS4240TVL 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 PBSS4240TVL reliable?

The price and inventory of PBSS4240TVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS4240TVL is usually 5 days.

3.What payment methods are accepted for PBSS4240TVL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS4240TVL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PBSS4240TVL?

PBSS4240TVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBSS4240TVL 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 PBSS4240TVL?

For technical support, including PBSS4240TVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS4240TVL requirements.

6.How does Aetrix verify that PBSS4240TVL is sourced from the original manufacturer or authorized distributors?

All PBSS4240TVL 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 PBSS4240TVL meets industry standards.

7.What is the process for return or replacement of PBSS4240TVL?

All PBSS4240TVL units undergo pre-shipment inspection (PSI). If there is an issue with PBSS4240TVL, 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 PBSS4240TVL part is unused and in its original packaging.

Return procedure for PBSS4240TVL:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…