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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)
PBSS4140USOT323SC-702 x 1.25 x 0.95NPN250401000300900150


Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
( 9340 565 14135 )
Reel 13” or 11 ¼” Q1/T1
( 9340 565 14115 )
Active41%Reel 7” Q1/T1 or Q2/T3

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFMSLMSL leadfree
Quality and reliability disclaimer

Documentation (6)

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 document2021-03-19
PBSS4140UPBSS4140U SPICE modelSPICE model2021-11-16
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 model2021-11-16

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
PBSS4140UPBSS4140U,135934056514135Reel 13” or 11 ¼” Q1/T1 Order product
PBSS4140UPBSS4140U,115934056514115Reel 7” Q1/T1 or Q2/T3Order 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.