40V Low VCEsat NPN Transistor

NPN low VCEsat transistor in a SOT323 plastic package.

PNP complement: PBSS5140U.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
PBSS4140U PBSS4140U,135 934056514135 SOT323 Order product
PBSS4140U PBSS4140U,115 934056514115 SOT323 Order product

Features and benefits

  • Low collector-emitter saturation voltage

  • High current capabilities.

  • Improved device reliability due to reduced heat generation.

  • Enhanced performance over SOT231A general purpose packaged transistors.

  • AEC-Q101 qualified


  • General purpose switching and muting

  • LCD backlighting

  • Supply line switching circuits

  • Battery driven equipment (mobile phones, video cameras and hand-held devices).


Type numberPackage versionPackage nameSize (mm)PolarityPtot (mW)VCEO [max] (V)IC [max] (mA)hFE [min]hFE [max]fT [min] (MHz)Automotive qualified
PBSS4140USOT323SC-702 x 1.25 x 0.95NPN250401000300900150Y

PCB Symbol, Footprint and 3D Model

Model NameDescription


Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
( 9340 565 14135 )
( 9340 565 14115 )

Environmental information

Type numberOrderable part numberChemical contentRoHSRHF-indicator
Quality and reliability disclaimer

Documentation (9)

File nameTitleTypeDate
PBSS4140U40V Low VCEsat NPN TransistorData sheet2001-07-12
AN11076Thermal behavior of small-signal discretes on multilayer PCBsApplication note2021-06-23
PBSS4140U_Nexperia_Product_QualityPBSS4140U Nexperia Product QualityQuality document2019-05-20
PBSS4140U_Nexperia_Product_ReliabilityPBSS4140U Nexperia Product ReliabilityQuality document2023-04-04
PBSS4140UPBSS4140U SPICE modelSPICE model2023-09-05
SOT323_135Tape reel SMD; standard product orientation 12NC ending 135Packing information2020-04-27
SOT323_115Reel pack for SMD, 7"; Q3/T4 product orientationPacking information2020-06-12
REFLOW_BG-BD-1Reflow soldering profileReflow soldering2021-04-06
WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08


If you are in need of design/technical support, let us know and fill in the answer form, we'll get back to you shortly.


File nameTitleTypeDate
PBSS4140UPBSS4140U SPICE modelSPICE model2023-09-05

PCB Symbol, Footprint and 3D Model

Model NameDescription

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingPacking quantityBuy online
PBSS4140UPBSS4140U,135934056514135SOT323_135- Order product
PBSS4140UPBSS4140U,115934056514115SOT323_115- Order product


As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store: https://extranet.nexperia.com.

Sample orders normally take 2-4 days for delivery.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples.

How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.