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

Nexperia USA Inc. PBSS4041NT,215

Name: PBSS4041NT,215
Brand: Nexperia USA Inc.
SKU: PBSS4041NT,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PBSS4041NT,215

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

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

Datasheet:: PBSS4041NT,215.pdf

Description:: TRANS NPN 60V 3.8A TO-236AB

Quantity:: RFQ Add To RFQ list

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Product details

Overview

PBSS4041NT from Nexperia is an AEC-Q101-qualified NPN low-V_CEsat transistor in SOT23 package, rated for 60 V V_CEO, 3.8 A continuous collector current, and 38–66 mΩ R_CEsat at I_C = 3 A / I_B = 300 mA. It serves as a high-efficiency load switch in automotive power management and battery-driven motor control circuits.

For engineers reviewing the PBSS4041NT datasheet, PBSS4041NT pinout, PBSS4041NT application, or PBSS4041NT equivalent, this device is selected for low-loss switching where thermal efficiency, PCB space reduction, and automotive-grade reliability are critical - especially in 12 V/24 V DC load switching with pulsed I_C up to 8 A.

Technical Context

This NPN transistor uses epitaxial planar die construction optimized for low saturation resistance and high h_FE (30–100) at I_C = 4 A, enabling efficient base drive with I_B/I_C ratios as low as 10. Its 155 MHz f_T supports fast switching in PWM-controlled loads.

Thermal performance is defined across five mounting configurations: R_th(j-a) ranges from 115 K/W (ceramic PCB) to 320 K/W (standard FR4), with R_th(j-sp) fixed at 62 K/W. Transient thermal impedance curves confirm stable operation under 1 ms pulses with duty cycles ≤ 0.75.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	60 V - Maximum blocking voltage in common-emitter configuration; suitable for 24 V automotive systems with margin.
I_C	3.8 A continuous - Sustained load current capability without derating at T_amb ≤ 25 °C on standard FR4.
R_CEsat	38–66 mΩ - Low conduction loss enables <1.2 V drop at 3 A, reducing heat generation vs. conventional transistors.
h_FE	30–100 at I_C = 4 A - High current gain allows low base drive current (e.g., 200 mA I_B for 4 A I_C).
t_off	870 ns - Fast turn-off time supports PWM frequencies >100 kHz in power switching applications.
AEC-Q101	Qualified - Validated for automotive temperature range (−55 °C to 150 °C) and stress testing per discrete semiconductor standard.

Pinout & Package

SOT23 plastic surface-mount package: 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch, 3-terminal configuration with gull-wing leads.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Control input; requires ≥100 mA I_B for full saturation at I_C = 3 A; V_BEsat = 0.8–1.3 V.
2	Emitter (E)	Current return path; internally connected to PCB ground plane in typical load-switch layout.
3	Collector (C)	High-current output node; thermally coupled to PCB copper area to manage 1.1 W P_tot dissipation.

Key Features

Feature	Design Value
Low V_CEsat	0.115–0.3 V at I_C = 3 A / I_B = 300 mA - Reduces conduction loss by >50% vs. standard bipolar transistors.
High I_CM	8 A peak (1 ms pulse) - Supports motor inrush and surge currents without latch-up or secondary breakdown.
Small footprint	SOT23 package saves >40% PCB area vs. TO-236AB or SC-59 equivalents - critical for space-constrained modules.
Automotive qualification	AEC-Q101 certified - Enables direct use in engine control units, body electronics, and ADAS power stages without requalification.

Applications

Load Switching

Battery Protection

Use Scenario: Controlling 12 V accessory loads (e.g., HVAC fans, lighting modules) in automotive ECUs.

IC Role / Device Role / Timing Role: NPN power switch driven by MCU GPIO; operates in saturation mode during ON state.

Use Value: 38 mΩ R_CEsat limits power loss to <0.35 W at 3 A, eliminating need for heatsink in ambient ≤85 °C.

Use Scenario: Reverse-polarity and overcurrent protection in portable medical devices with Li-ion battery packs.

IC Role / Device Role / Timing Role: Low-side switch in series with battery discharge path; controlled by protection IC.

Use Value: 60 V V_CEO withstands load-dump transients; AEC-Q101 grade ensures reliability in field-deployed equipment.

Motor Drive

Charging Control

Use Scenario: Driving small DC brush motors (e.g., power seats, window lifts) in 24 V commercial vehicles.

IC Role / Device Role / Timing Role: Single-ended switch in H-bridge half-bridge leg; handles bidirectional PWM current.

Use Value: 8 A I_CM accommodates 3× stall current; fast t_off (870 ns) minimizes shoot-through risk in bridge timing.

Use Scenario: Enabling/disabling charging paths in multi-bank USB-C PD power banks.

IC Role / Device Role / Timing Role: Enable switch between charger IC and battery cell; operated at DC or low-frequency enable signals.

Use Value: Low 0.115 V V_CEsat at 2 A reduces voltage drop across switch, preserving charging efficiency and thermal headroom.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN low-V_CEsat transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor NSS40401LT1G	Same SOT23 package, but V_CEO = 40 V and R_CEsat = 50–90 mΩ at I_C = 3 A - lower voltage rating and higher saturation resistance.	Not suitable for 24 V automotive systems with load-dump margin; limited to ≤12 V battery applications.	Select only if system max V_CC ≤ 30 V and thermal budget allows +15% conduction loss.
Diodes Incorporated DXTN3C40PSQ-13	Higher V_CEO = 40 V, but AEC-Q101 qualified and R_CEsat = 45 mΩ typ - slightly less efficient, same automotive compliance.	Compatible for 12 V automotive loads but not 24 V; identical thermal derating behavior on FR4 PCB.	Prefer when supply chain diversification is required and 60 V margin is not needed.

Compared with PBSS4041NT, NSS40401LT1G trades voltage headroom for cost in low-voltage consumer gear, while DXTN3C40PSQ-13 matches automotive qualification but sacrifices 60 V capability - making PBSS4041NT the sole choice for robust 24 V industrial and automotive load switching.

Availability

PBSS4041NT is available at Aetrix Electronics and suitable for automotive ECU design, battery-powered motor control, and industrial power management requiring stable component supply across extended temperature and lifecycle demands.

Supply support for PBSS4041NT 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 logic, discrete, and MOSFET solutions, with leadership in automotive-qualified components.

PBSS4041NT belongs to Nexperia's "Low V_CEsat Bipolar" product line, engineered specifically for energy-efficient load switching in automotive and industrial power systems where thermal density and board space are constrained.

FAQ

What is the maximum allowable base current for continuous operation?

The absolute maximum base current is 1 A per datasheet Table 5. However, for reliable continuous operation at I_C = 3.8 A, Nexperia specifies I_B = 300 mA (I_C/I_B = 12.7) to maintain V_CEsat ≤ 0.2 V and prevent thermal runaway. Exceeding 300 mA base drive offers diminishing returns in saturation improvement and increases driver-stage power loss.

Can PBSS4041NT replace a MOSFET in low-side switching applications?

Yes - with caveats. Its 38 mΩ R_CEsat delivers comparable conduction loss to many 20 V logic-level MOSFETs at I_C ≤ 3 A, and its bipolar drive simplifies gate control. However, it lacks MOSFET advantages like zero gate current and faster switching; use only where base drive capability exists and f_SW < 50 kHz is acceptable.

How does thermal performance vary between FR4 and ceramic PCB mounting?

On standard FR4 (single-layer, 35 µm Cu), R_th(j-a) = 320 K/W limits continuous I_C to ~1.8 A at T_amb = 85 °C. On Al₂O₃ ceramic PCB, R_th(j-a) drops to 115 K/W, enabling full 3.8 A I_C at same ambient - a 2.2× thermal improvement critical for sealed enclosures or high-power-density designs.

Is PBSS4041NT pin-compatible with its PNP complement PBSS4041PT?

Yes - both share identical SOT23 pinning: Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector. This allows mirrored placement in complementary emitter-follower or push-pull output stages. However, note that PBSS4041PT has inverted polarity and different saturation characteristics (V_ECsat ≈ 0.15 V), requiring separate biasing analysis.

PBSS4041NT,215 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):: 3.8 A

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

Vce Saturation (Max) @ Ib, Ic:: 300mV @ 200mA, 4A

Current - Collector Cutoff (Max):: 100nA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 120 @ 2A, 2V

Power - Max:: 1.1 W

Frequency - Transition:: 175MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

PBSS4041NT,215 FAQ

1.How can I place an order for PBSS4041NT,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for PBSS4041NT,215 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 PBSS4041NT,215 reliable?

The price and inventory of PBSS4041NT,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS4041NT,215 is usually 5 days.

3.What payment methods are accepted for PBSS4041NT,215?

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4.How is shipping managed for PBSS4041NT,215?

PBSS4041NT,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBSS4041NT,215 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 PBSS4041NT,215?

For technical support, including PBSS4041NT,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS4041NT,215 requirements.

6.How does Aetrix verify that PBSS4041NT,215 is sourced from the original manufacturer or authorized distributors?

All PBSS4041NT,215 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 PBSS4041NT,215 meets industry standards.

7.What is the process for return or replacement of PBSS4041NT,215?

All PBSS4041NT,215 units undergo pre-shipment inspection (PSI). If there is an issue with PBSS4041NT,215, 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 PBSS4041NT,215 part is unused and in its original packaging.

Return procedure for PBSS4041NT,215:

1.Submit a request within 90 days.

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

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