Register once, drag and drop ECAD models into your CAD tool and speed up your design.

Click here for more information


40 V, 5 A NPN low VCEsat (BISS) transistor

NPN low VCEsat transistor in a medium power SOT89 (SC-62) package.

PNP complement: PBSS5540X.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
PBSS4540X PBSS4540X,135 934057105135 SOT89 Order product

Features and benefits

  • High hFE and low VCEsat at high current operation
  • High collector current capability: IC maximum 4 A
  • High efficiency leading to less heat generation.
  • AEC-Q101 qualified


  • Medium power peripheral drivers (e.g. fan and motor)
  • Strobe flash units for DSC and mobile phones
  • Inverter applications (e.g. TFT displays)
  • Power switch for LAN and ADSL systems
  • Medium power DC-to-DC conversionc
  • Battery chargers.


Type numberPackage versionPackage nameSize (mm)PolarityPtot (mW)VCEO [max] (V)IC [max] (mA)hFE [min]fT [min] (MHz)
PBSS4540XSOT89SOT894.5 x 2.5 x 1.5NPN250040400030070


Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
( 9340 571 05135 )

Reel 13” or 11 ¼” Q1/T1

Quality, reliability & chemical content

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

Documentation (6)

File nameTitleTypeDate
PBSS4540X40 V, 5 A NPN low VCEsat (BISS) transistorData sheet2020-04-15
AN11076Thermal behavior of small-signal discretes on multilayer PCBsApplication note2021-06-23
PBSS4540X_Nexperia_Product_QualityPBSS4540X Nexperia Product QualityQuality document2019-05-20
PBSS4540X_Nexperia_Product_ReliabilityPBSS4540X Nexperia Product ReliabilityQuality document2021-03-19
PBSS4540XPBSS4540X 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
PBSS4540XPBSS4540X SPICE modelSPICE model2021-11-16

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
PBSS4540XPBSS4540X,135934057105135Reel 13” or 11 ¼” Q1/T1 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.